Friday, June 25, 2021

Threat Roundup for June 18 to June 25


Today, Talos is publishing a glimpse into the most prevalent threats we've observed between June 18 and June 25. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics, indicators of compromise, and discussing how our customers are automatically protected from these threats.

As a reminder, the information provided for the following threats in this post is non-exhaustive and current as of the date of publication. Additionally, please keep in mind that IOC searching is only one part of threat hunting. Spotting a single IOC does not necessarily indicate maliciousness. Detection and coverage for the following threats is subject to updates, pending additional threat or vulnerability analysis. For the most current information, please refer to your Firepower Management Center, Snort.org, or ClamAV.net.

For each threat described below, this blog post only lists 25 of the associated file hashes and up to 25 IOCs for each category. An accompanying JSON file can be found here that includes the complete list of file hashes, as well as all other IOCs from this post. A visual depiction of the MITRE ATT&CK techniques associated with each threat is also shown. In these images, the brightness of the technique indicates how prevalent it is across all threat files where dynamic analysis was conducted. There are five distinct shades that are used, with the darkest indicating that no files exhibited technique behavior and the brightest indicating that technique behavior was observed from 75 percent or more of the files.

The most prevalent threats highlighted in this roundup are:

Threat Name Type Description
Win.Packed.Zbot-9874254-0 Packed Zbot, also known as Zeus, is a trojan that steals information, such as banking credentials, using methods such as key-logging and form-grabbing.
Win.Ransomware.Winwebsec-9872839-0 Ransomware Winwebsec installs itself to a compromised system as "anti-malware" software with desktop links and various persistence techniques (Windows service, Registry Run key, etc.). This family is known for using fake alerts for malware found on the system to deceive users into buying services before the "malware" can be removed.
Win.Dropper.Emotet-9872862-0 Dropper Emotet is one of the most widely distributed and active malware families today. It is a highly modular threat that can deliver a wide variety of payloads. Emotet is commonly delivered via Microsoft Office documents with macros, sent as attachments on malicious emails.
Win.Packed.Dridex-9873348-1 Packed Dridex is a well-known banking trojan that steals login credentials and other sensitive information from an infected machine.
Win.Trojan.Vobfus-9872901-0 Trojan Vobfus is a worm that copies itself to external drives and attempts to gain automatic code execution via autorun.inf files. It also modifies the registry so that it will launch when the system is booted. Once installed, it attempts to download follow-on malware from its command and control (C2) servers.
Win.Malware.Razy-9874047-0 Malware Razy is oftentimes a generic detection name for a Windows trojan. It collects sensitive information from the infected host and encrypt the data, and send it to a command and control (C2) server. Information collected might include screenshots. The samples modify auto-execute functionality by setting and creating a value in the registry for persistence.
Win.Trojan.Kovter-9872967-1 Trojan Kovter is known for its fileless persistence mechanism. This family of malware creates several malicious registry entries which store its malicious code. Kovter is capable of reinfecting a system, even if the file system has been cleaned of the infection. Kovter has been used in the past to spread ransomware and click-fraud malware.
Win.Malware.Redline-9873418-1 Malware Redline Stealer is an information-stealer written in .NET and sold on hacking forums.
Win.Malware.CoinMiner-9873034-1 Malware This malware installs and executes cryptocurrency mining software. You can read more about this kind of threat on our blog https://blog.talosintelligence.com/2018/07/blocking-cryptomining.html.

Threat Breakdown

Win.Packed.Zbot-9874254-0

Indicators of Compromise

  • IOCs collected from dynamic analysis of 25 samples
Registry Keys Occurrences
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: {2EC645E8-BA31-AD44-55BA-04D54CAC27C8}
6
<HKCU>\Software\Microsoft\<random, matching '[A-Z][a-z]{3,11}'> 6
<HKCU>\SOFTWARE\MICROSOFT\NIMUK
Value Name: 2b24cccj
1
<HKCU>\SOFTWARE\MICROSOFT\NIMUK
Value Name: 16494249
1
<HKCU>\SOFTWARE\MICROSOFT\NIMUK
Value Name: 2ec1aa0d
1
<HKCU>\SOFTWARE\MICROSOFT\UTUQU
Value Name: 347i870j
1
<HKCU>\SOFTWARE\MICROSOFT\UTUQU
Value Name: 11gigeah
1
<HKCU>\SOFTWARE\MICROSOFT\UTUQU
Value Name: 30ba14i5
1
<HKCU>\SOFTWARE\MICROSOFT\RUGUSA
Value Name: 2c29ecif
1
<HKCU>\SOFTWARE\MICROSOFT\RUGUSA
Value Name: 15429659
1
<HKCU>\SOFTWARE\MICROSOFT\RUGUSA
Value Name: 2fda7815
1
<HKCU>\SOFTWARE\MICROSOFT\MUHYY
Value Name: 33d4bhe3
1
<HKCU>\SOFTWARE\MICROSOFT\MUHYY
Value Name: 1214de8h
1
<HKCU>\SOFTWARE\MICROSOFT\MUHYY
Value Name: 2igcd191
1
<HKCU>\SOFTWARE\MICROSOFT\TAOTEX
Value Name: 2293h41d
1
<HKCU>\SOFTWARE\MICROSOFT\TAOTEX
Value Name: 1ghg697
1
<HKCU>\SOFTWARE\MICROSOFT\TAOTEX
Value Name: 27012a27
1
<HKCU>\SOFTWARE\MICROSOFT\RIFUZ
Value Name: be7308
1
<HKCU>\SOFTWARE\MICROSOFT\RIFUZ
Value Name: 2340jd8i
1
<HKCU>\SOFTWARE\MICROSOFT\RIFUZ
Value Name: 46e10h2
1
Mutexes Occurrences
Global\{C30C6CF2-932B-408E-55BA-04D54CAC27C8} 6
Global\{73DE6ED9-9100-F05C-55BA-04D54CAC27C8} 6
Global\{A9348FD8-7001-2AB6-55BA-04D54CAC27C8} 6
Global\{A9348FDF-7006-2AB6-55BA-04D54CAC27C8} 6
Local\{C8D239CA-C613-4B50-55BA-04D54CAC27C8} 6
Local\{C8D239CB-C612-4B50-55BA-04D54CAC27C8} 6
Local\{<random GUID>} 6
GLOBAL\{<random GUID>} 6
IP Addresses contacted by malware. Does not indicate maliciousness Occurrences
172[.]217[.]10[.]36 6
194[.]94[.]127[.]98 6
69[.]39[.]74[.]6 6
24[.]120[.]165[.]58 6
108[.]211[.]64[.]46 6
184[.]156[.]76[.]158 6
155[.]212[.]138[.]69 6
142[.]176[.]125[.]203 6
99[.]68[.]30[.]82 6
96[.]57[.]35[.]109 6
71[.]42[.]56[.]253 6
94[.]67[.]185[.]188 6
199[.]243[.]220[.]218 6
64[.]219[.]121[.]189 6
87[.]203[.]112[.]174 6
85[.]9[.]95[.]205 6
151[.]49[.]166[.]206 6
99[.]95[.]152[.]226 6
50[.]72[.]177[.]24 6
66[.]117[.]77[.]134 6
Domain Names contacted by malware. Does not indicate maliciousness Occurrences
www[.]google[.]com 6
skbuxcqfehlfrgwsrgobztnf[.]org 2
demxylxksylneihmbtwbyxopz[.]net 2
uciugdmfncuskbmlfrstsnxopx[.]com 2
djvcycygudvusunrizwumnsgqc[.]ru 2
zhhitmvpypbmjntqkbwglpt[.]com 2
useugkbwtssglfltwkfahfqwk[.]net 2
cjveiorqctgmiggmjrlzhuddq[.]org 2
nvxrhskiztbaronjdekfxwcl[.]info 2
lruoqokhmxvmzqvojjrvgxcmem[.]biz 2
dmdyxcrousnfxdeqwpnvgobojeq[.]ru 2
rcijzpkvovrkdyeictuoukvcad[.]com 2
dqemzppuwfurksorvdaxovca[.]info 2
vhfmkryxdlkbcequhmrd[.]org 2
feqshmroraqzvwtgucucmvwhdqhu[.]biz 2
gikbdyafymblylguqsgwcnjmfhy[.]com 2
ttcswpvxgdeaihqqsllvmrytunvkf[.]ru 2
zltddcyjrswkruotoijdkwgm[.]com 2
gmdypeugmkvijdxcztvmgipbam[.]net 2
tsubqrfqxobtljhmhizqaybq[.]biz 2
xpyxucpfyleqaqciqcqdwotkzl[.]info 2
bmjzxhsovwhtqcqpvxxcmzk[.]com 2
huqcqwxylpnvkdapfteaswtknjzq[.]ru 2
hsmrtkxofmbiqcinwskrcuyttiv[.]com 2
xttszgihuchgmdiytxcbe[.]biz 2
*See JSON for more IOCs
Files and or directories created Occurrences
%LOCALAPPDATA%\Microsoft\Windows Mail\edb.log (copy) 6
%LOCALAPPDATA%\Microsoft\Windows Mail\edb00001.log (copy) 6
%LOCALAPPDATA%\Microsoft\Windows Mail\oeold.xml 6
%TEMP%\tmp<random, matching '[0-9a-z]{8}'>.bat 6
%APPDATA%\<random, matching '[a-z0-9]{3,7}'> 6
%HOMEPATH%\AppData\LocalLow\<random, matching '[a-z]{4,6}.[a-z]{3}'> 6
%APPDATA%\<random, matching '[A-Z][a-z]{3,5}\[a-z]{4,6}'>.exe 6

File Hashes

0265ee1397744c35952cd3393a32cacd46f7a2d3491873b7470f053b72993476 02dfbf8a2346ec0e29fd07eec0f8a0979a983dba8c573f1098a82490c03a4a2c 02e9aae073ef2890ec495fd865d83ac05fd0d7b5fe82e1242354c8dd3795d3f5 03a690cdd7bec565e66e508296e08700a32c9461e96146d1348c178dbf708cc3 04bcacaf06d03ca17b58b43aeb14b3eb64a707edb39da1eae214f3a3396acabe 058219e56b300b30f3b546fb8b1b639124c728591a905d56fbeafece070dee05 05b13456513145b9e35c66c8e43508d7861580fc3199134a23c2e3a00ab9b1d1 079b020546d12e97b50f7e6d0112331690b02ca9889af1d3472f76dce4cb1cc0 0a8f7d5cb972ae2e15bf17b3d0ae19c81f12f71844ea9eacb8cb8fed0ec8939a 0ad73039f0082695d31f6c4180aed7d1e4b470835bf6f99db9117adb0ad4c286 0bd9ce1c5d4ff94fd1b3e04d738d79d73a04a3fa01908c863a689960eb656f7b 0ecfe929513beb211194067d9bba0304027149604388e4a8d5b70381e3c0ce86 100fc0f0d9f090fb24f4bf5f2ff0eaf864aff449addfffca8b374964107132a4 104f719ce69ee89b818a11ad649d65dd1212fdf5fd82f704abc408499638440e 10cc388f35959cfe59426b009c791c64f8ab7ef9503ceb71add1fa6f6b17aac1 119302985e9689bfb693d812cd60584debd8c667aad6fc6300a07f275160bcd5 12d8addff4d83b4cd1e78f556c69c49679ec6bac6ed42db36f885556ce59fc7d 15c55fadef43d9c8114077e0b4801bd40b99b2c30a1cb7a63127e32830222358 1623ba22db728415fb7c8ca0dd287d0ed81c71b4f8225d913a703deaf464878f 18399c8bf8e3d2e66896fc1f2d9f4d88241bef526d70df3ce034e2ae1e7214ba 18a109115423c1675a965b11e0ce50ac8054af8e50f24cf51f86b2c3c116d8f0 18a44f58e4b565a5cc5c58672e6afa516c1a94c06ae7cfca350e0067bb1f0350 18eedc10b1056b0832dc7cda86f3d53f30bbd270da3e0e1a5cbacea4c0711eb3 1955dccf8a259cca2ccd09f28483ed6035c713990cb849ea689d08efc0a1343c 1961daff26ea84bf623d0a6a2832118f15ed8d81197eb22180de67ee508b70b5
*See JSON for more IOCs

Coverage

Product Protection
AMP This has coverage
Cloudlock N/A
CWS This has coverage
Email Security This has coverage
Network Security This has coverage
Stealthwatch N/A
Stealthwatch Cloud N/A
Threat Grid This has coverage
Umbrella This has coverage
WSA This has coverage

Screenshots of Detection

AMP



ThreatGrid



MITRE ATT&CK





Win.Ransomware.Winwebsec-9872839-0

Indicators of Compromise

  • IOCs collected from dynamic analysis of 32 samples
Registry Keys Occurrences
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS\TABLET PC
Value Name: IsTabletPC
31
<HKLM>\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\TABLET PC
Value Name: IsTabletPC
31
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS\TABLET PC
Value Name: DeviceKind
31
<HKCU>\SOFTWARE\MICROSOFT\CTF\MSUTB
Value Name: Left
31
<HKCU>\SOFTWARE\MICROSOFT\CTF\MSUTB
Value Name: Top
31
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RELIABILITY\SHUTDOWN
Value Name: Comment
31
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RELIABILITY\SHUTDOWN
Value Name: ReasonCode
31
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RELIABILITY
Value Name: 6005BT
31
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RELIABILITY
Value Name: LastAliveStamp
31
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\AUTHENTICATION\LOGONUI\LOGONSOUNDPLAYED
Value Name: LogonUIChecked
31
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\PROFILELIST\S-1-5-21-2580483871-590521980-3826313501-500
Value Name: RunLogonScriptSync
31
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\PROFILELIST\S-1-5-21-2580483871-590521980-3826313501-500
Value Name: RefCount
31
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\WINMGMT\PARAMETERS
Value Name: ServiceDllUnloadOnStop
31
<HKLM>\SOFTWARE\MICROSOFT\WBEM\CIMOM
Value Name: LastServiceStart
31
<HKLM>\SOFTWARE\MICROSOFT\WBEM\CIMOM
Value Name: ProcessID
31
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\WINLOGON
Value Name: ShutdownFlags
31
<HKLM>\SOFTWARE\MICROSOFT\WBEM\CIMOM
Value Name: PreviousServiceShutdown
31
Mutexes Occurrences
Local\MSCTF.Asm.MutexWinlogon0 31
Local\MSCTF.CtfMonitorInstMutexWinlogon0 31
Global\6e815cc1-d08a-11eb-b5f8-00501e3ae7b6 1
Files and or directories created Occurrences
%System32%\catroot2\{127D0A1D-4EF2-11D1-8608-00C04FC295EE}\catdb 31
%System32%\catroot2\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}\catdb 31
%TEMP%\fpath.txt 31
%TEMP%\x2z8.exe 31
\Device\Harddisk0\DR0 27

File Hashes

02ca44c6999d8dcc254d55eb21bee695bb807c33db76a9e80aa0275e33611bc1 03ae3ed24adf3f5a80eceb934ad3714dc278476fb16ca48cfd8a0e423222ab7b 16176e6b56173e647bb6152f907dea19e3ce4219a712b4708eecf6ea183dfc19 17abf73a58cdd3c22091019c104f0cde0197a7548ce57b905f62ac51cdc785d4 1c82667fe519e221fd37d00b71b87c2e5e2587f23b3cb22a4ae97a587b8c5373 20bed77f27da5bc4245cc608a5619e2484d3a866ed76fa5140a325b67104b613 24091069abb3f359acd71d50305efe142af2863b384ffa3821a1bce883847653 28613846214e3d0b3554bc4e4aeff6fe6797a5d5625d00f3847a682fbe33c14a 2ea8605c1916a1fecbfc0b8c96a9ff0b6535362e2ddf50b3c66f576ab08a4d22 301cbd576bf99feb629b5fe5c52cb7ab3f16f2c70d7d45c886e34078301a17d1 32d5c6f1646907f1a2aba24d9a7ecf7833eda642a91bd23a549696dbe24220fe 3366ea42fcf34c57d6af0ef452714ea664a2831d590f678a4a8f8866a8a59604 37346f5e28222d8f9edc3b68d7b5b08d2a2e0aeacbb6909a8c385c523215a3bc 3a639aaf7fd13d3bcaf263ff0483a278c47e3fd03144639d2251a010c55aedf8 4a46053b41aa436ed79cdc30a836dbfb3851c14d9605ea935a01b68946e6b209 4cdf049cabd2a5fb09e414d92ab5992f33754a3b1a754a44f0f7ab7835705694 56528b9c8cbedaaae36af99da71078e2dc2eca81111f6e626b591c511fe8f6fd 56fbc81efcbf1e7d9942f028ecdb0edf26cc6e254346c1a4208147ce9f05c929 57427313dcff5f62ad9c9532c692ecf87521434b8255ac92f19fbc4eacc34fcd 5eefda8a84712c065615948e6ab51160f5bda2ff6096b0f233ccbbe7fecf1c9c 62acca359ebfe0ceaede94afe3bf8129997780daa301642098763247cd6a9b49 638eaaa1aa52193f30449f95f5fcf13f6840aadb5a68bfa088cfdff7e3e04782 64c48529044fdb390282c3eb09c869d0566762df4c1ff351ad3f152a9cece9bf 681c46653d95fcd91991cd146a62fa584552a05f78e6444aac960a7b7855ab99 6a0d4b84dca37c03a335ce02e3bd7282ea7fadd0b108f6a4b9fd76fd0461e645
*See JSON for more IOCs

Coverage

Product Protection
AMP This has coverage
Cloudlock N/A
CWS This has coverage
Email Security This has coverage
Network Security N/A
Stealthwatch N/A
Stealthwatch Cloud N/A
Threat Grid This has coverage
Umbrella N/A
WSA N/A

Screenshots of Detection

ThreatGrid



MITRE ATT&CK





Win.Dropper.Emotet-9872862-0

Indicators of Compromise

  • IOCs collected from dynamic analysis of 30 samples
Registry Keys Occurrences
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\<random, matching '[A-Z0-9]{8}'> 5
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\<random, matching '[A-Z0-9]{8}'>
Value Name: Type
5
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\<random, matching '[A-Z0-9]{8}'>
Value Name: Start
5
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\<random, matching '[A-Z0-9]{8}'>
Value Name: ErrorControl
5
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\<random, matching '[A-Z0-9]{8}'>
Value Name: DisplayName
5
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\<random, matching '[A-Z0-9]{8}'>
Value Name: WOW64
5
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\<random, matching '[A-Z0-9]{8}'>
Value Name: ObjectName
5
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\<random, matching '[A-Z0-9]{8}'>
Value Name: ImagePath
5
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\<random, matching '[A-Z0-9]{8}'>
Value Name: Description
5
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\DSOUND
Value Name: ImagePath
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\BWCONTEXTHANDLER
Value Name: Description
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\ACLEDIT 1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\ACLEDIT
Value Name: Type
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\ACLEDIT
Value Name: Start
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\ACLEDIT
Value Name: ErrorControl
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\ACLEDIT
Value Name: DisplayName
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\ACLEDIT
Value Name: WOW64
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\ACLEDIT
Value Name: ObjectName
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\DINPUT
Value Name: ImagePath
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\ICSIGD
Value Name: ImagePath
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\COMPOBJ
Value Name: Description
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\COMPOBJ
Value Name: ImagePath
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\DSOUND
Value Name: Description
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\CAPISP
Value Name: ImagePath
1
<HKLM>\SYSTEM\CONTROLSET001\SERVICES\WMSGAPI
Value Name: ImagePath
1
Mutexes Occurrences
14DEAD30-2F66-41c2-AF94-9165F67460B9 26
XQueue_Write_XQueue_Test1 26
IP Addresses contacted by malware. Does not indicate maliciousness Occurrences
78[.]24[.]219[.]147 17
95[.]179[.]229[.]244 17
169[.]239[.]182[.]217 17
45[.]55[.]219[.]163 17
173[.]81[.]218[.]65 17
45[.]55[.]36[.]51 17
91[.]83[.]93[.]99 17
24[.]43[.]99[.]75 17
116[.]125[.]120[.]88 9
174[.]100[.]27[.]229 9
87[.]118[.]70[.]45 9
71[.]197[.]211[.]156 9
91[.]121[.]54[.]71 9
213[.]60[.]96[.]117 9
188[.]2[.]217[.]94 9
46[.]28[.]111[.]142 6
186[.]103[.]141[.]250 5
172[.]217[.]197[.]139 1
172[.]217[.]197[.]95 1
209[.]85[.]201[.]94 1
173[.]194[.]204[.]94 1
173[.]194[.]208[.]94 1
107[.]5[.]122[.]110 1
Files and or directories created Occurrences
%SystemRoot%\SysWOW64\<random, matching '[a-z]{8}'> 5
%SystemRoot%\SysWOW64\shsetup 2
%SystemRoot%\SysWOW64\setup16 1
%SystemRoot%\SysWOW64\vbajet32 1
%SystemRoot%\SysWOW64\sdohlp 1
%SystemRoot%\SysWOW64\cmstp 1
%SystemRoot%\SysWOW64\TapiMigPlugin 1
%SystemRoot%\SysWOW64\authui 1
%SystemRoot%\SysWOW64\systray 1
%SystemRoot%\SysWOW64\PresentationHostProxy 1
%SystemRoot%\SysWOW64\traffic 1
%SystemRoot%\SysWOW64\UserAccountControlSettings 1
%SystemRoot%\SysWOW64\puiapi 1
%SystemRoot%\SysWOW64\webservices 1
%SystemRoot%\SysWOW64\ddraw 1
%SystemRoot%\SysWOW64\wlanmsm 1
%SystemRoot%\SysWOW64\acppage 1
%SystemRoot%\SysWOW64\msvcp60 1
%SystemRoot%\SysWOW64\PING 1
%SystemRoot%\SysWOW64\osk 1
%SystemRoot%\SysWOW64\api-ms-win-core-fibers-l1-1-0 1

File Hashes

00efca8ca751e783585c198ba5071f2b7c11777cc5645c5bac2f0ad2a290ba49 02f9486cba6d4f0fdbf33e6b00d2faf0797fb9c129e01a421d7e60798a030cca 03441027cfc2d5cdd87ae26555b028e29753e10fe0a79f8ca480bc3ac78e4821 03a1f97715b330107e70b6d103144a2b9c65c727e673850ab407cebcd937ca26 03b7807077a106bf98ab5f5e447d946d9d4bea03c90109330e9988c2f328e8d6 03d4ad8e98c785ec0988bb80900554f8e187aa86502948e5bda4073662dcf27e 05029b568fb270f33869f38fb2134d764ee4a1ba50f08f0d09d5177512f2fb80 05724f967150d80967c57afcd2cdf4f6bd6e69b7f3aaf0686bdde93fca57c340 05a5ab387ae94b7980bbc1708e2624db2cf8cdeac13367058a0cee86f8b834e5 05e6c88a76a4f7542b13717ded4c289296e3f9880cf6fc9346d00f6e50f685a3 06e2a28c7bacfd35fc8d1d90dea8f42555c1641cfa1076c6297ef5841fde302f 071f9233d94afe6f5fc72f89f7dafc514a83d38a8b0fd75dac5b3108dcba966e 072f92babfa5dd2095f6481df38e77e99ace9c6d0a43f66cb537313143a734e3 08a6f5cb8d759fce9383eb1faa3a3746f9473514160a37109e65f1c9461f3204 0953ac699a62cb99d8a71a20cbb6cd913edb826ad1384dc9eee3a8e02d066e77 0a1282ae5060c7f9c5f2d9bfae7019a6fec790e3eddf9a433719064582b4865d 0b5076aece34ae4ca29972c8d52dbe6e0269609056d54d17d927bf5083665a49 0bf0cb14ca4d8b459f22b6d2a4ad3ac57a893b6e2cd71f7522ec8d58205d2cc3 0c976298183ecbeb911e7f2b8f9faec934790d75770d3cc7243c10bfbdc4120a 0ebf21e3c7f7051be66a334cf07f0e9d5c155cef2b36b60a3889adb23a593d2c 0f357ac1e3e7c029252eefef8b895da9e50cca988b7b1d847f60e8cf07622327 0f458d34f60bce9f400b475152d8786a18458bd15ae4c75c390c648a78627c31 0f928d340a63411357fcb3ed720273def0c452102721e03f9e92037d929f9150 103fc30ca555acce081acba2b9fcba4b64e2af5e9106ac27e105b75dbff60c2b 1465c948a4a7fca8874e3efbc0b57b22c715f38aabd217adcb671f9c262316df
*See JSON for more IOCs

Coverage

Product Protection
AMP This has coverage
Cloudlock N/A
CWS This has coverage
Email Security This has coverage
Network Security This has coverage
Stealthwatch N/A
Stealthwatch Cloud N/A
Threat Grid This has coverage
Umbrella N/A
WSA This has coverage

Screenshots of Detection

ThreatGrid



MITRE ATT&CK





Win.Packed.Dridex-9873348-1

Indicators of Compromise

  • IOCs collected from dynamic analysis of 25 samples
Registry Keys Occurrences
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUNONCE
Value Name: trkcore
25
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\SYSTEM
Value Name: DisableTaskMgr
25
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\ACTION CENTER\CHECKS\{C8E6F269-B90A-4053-A3BE-499AFCEC98C4}.CHECK.0
Value Name: CheckSetting
25
Mutexes Occurrences
<random, matching [A-Z0-9]{10}> 25
IP Addresses contacted by malware. Does not indicate maliciousness Occurrences
104[.]23[.]98[.]190 16
142[.]250[.]80[.]14 12
173[.]194[.]205[.]100/31 10
104[.]23[.]99[.]190 9
173[.]194[.]205[.]113 8
23[.]3[.]13[.]88 7
142[.]250[.]65[.]78 6
23[.]3[.]13[.]154 5
173[.]194[.]205[.]138/31 5
72[.]21[.]81[.]240 4
3[.]223[.]115[.]185 4
173[.]194[.]205[.]102 3
172[.]217[.]197[.]95 3
209[.]85[.]232[.]132 3
173[.]194[.]204[.]97 3
173[.]194[.]206[.]94/31 3
172[.]217[.]197[.]148/31 3
172[.]217[.]197[.]154 2
169[.]55[.]104[.]49 2
209[.]85[.]201[.]156/31 2
172[.]217[.]12[.]238 2
172[.]217[.]197[.]156 2
173[.]194[.]205[.]132 2
209[.]85[.]144[.]156 2
99[.]86[.]230[.]124 2
*See JSON for more IOCs
Domain Names contacted by malware. Does not indicate maliciousness Occurrences
pastebin[.]com 25
w[.]google[.]com 25
www3[.]l[.]google[.]com 25
cs11[.]wpc[.]v0cdn[.]net 4
www[.]z37jtkdzff[.]com 2
www[.]0keciyzl92[.]com 2
www[.]zibhyarigr[.]com 2
www[.]hxz4rubeyu[.]com 2
www[.]pt3ehw0n85[.]com 2
www[.]piog8gp4de[.]com 2
www[.]c6zgdskjm4[.]com 2
www[.]31pww4vhhv[.]com 2
www[.]pqvput8ff6[.]com 2
www[.]a7d7eyhkkw[.]com 2
www[.]ukolrlxfbz[.]com 2
www[.]esvxvhqjbw[.]com 2
www[.]ilslbphv5j[.]com 2
www[.]hghlot8ovh[.]com 2
www[.]aebjhsxosq[.]com 2
www[.]hagfxw7ibx[.]com 2
www[.]tidsqh1ijf[.]com 2
www[.]wyryxvx5jj[.]com 2
www[.]anxrsghxxk[.]com 2
www[.]fsp1lkgrpt[.]com 2
www[.]3kk1vor0ly[.]com 2
*See JSON for more IOCs
Files and or directories created Occurrences
<malware cwd>\old_<malware exe name> (copy) 25
%ProgramData%\Microsoft\Windows\SystemData\S-1-5-18\ReadOnly\LockScreen_Z\LockScreen___1024_0768_notdimmed.jpg (copy) 3
%ProgramData%\Microsoft\Windows\SystemData\S-1-5-18\ReadOnly\LockScreen_Z\~ockScreen___1024_0768_notdimmed.tmp 3
%LOCALAPPDATA%\Microsoft\Windows\Explorer\ExplorerStartupLog_RunOnce.etl 3
\Temp\HncDownload\Update.log 2
%LOCALAPPDATA%\Microsoft\CLR_v2.0_32\UsageLogs\HncCheck.exe.log 2

File Hashes

012251daf94ed3b6129762d739e68be75622a1f6ea023ad1f79213b504e2374a 01c5fa616673a8d656851a16c1152955fb2615dbe94d81d0f4d891ec932873df 02985818a22f20f9bb1070c4125bf9ba73a29f366b77ec1f47d4efd7cd750bbe 06ed7d8afdbc79634e7375791be9782bdefad74c9f47f22a8ca2f2ced7bbc136 0a69035e4c71aad8deda84ef5ed598dcf013dadf8c4953b07ed2deed0cf3c22e 0cf72c934cd0d674928cd1dd160a9e6c5dd3859c676582547bfea5b2ce4a5ff2 0daa0bace77a2c37d315925cce31684d9875fe405dd7a31f87d23385d3c749cb 0f599a54097c4ea65b0b64fd0cfd195fc1382743bcb6a670e1c49d42053c6d34 1c65d33bf26ce2e7f360284072a1c3ee26ee17f3c03d8234a86f3d6614598fc9 1fc1fe6c4e1fd31c6a2ef916c2edd6464ac79a2cd3eaf058da43988ace758689 1ff78f7db9e34e28ba5fc1e7fe83309849cb76c9a8f188d622996fb54cd003b1 25e4cc5b949c7003020f2e11c123c8c21d394aba71361d2fd45ca6d97c189ff0 27e5818866b325a62308ea61d4dbd9576454dc04e5cc155300dd3fce032b208e 28aab987ae4d9597aebc1a39eff40b24c309453cb7de3df3820bf7e651bd3288 2bab445cd5de76ed539c930b247025974044ef69b42da29aabf3bb81a32ec423 2e576b2b6d95a5432ce8d203b420c51788d89f5dc404c4139bd89a9a66a37167 2f94474106f7104697fe80621b89d417a51d8f10cbd7dda45139266f88ecfa8b 3ffdabee3a1e3718e368487b99dbd83f44afc088de10e908b5669c1cef110427 409d7a5a6d922b2e43d7ed73ec316bed82658b86ac2c7b1441d57c94a74824cd 439d4d8a448a8a79ff90b5832472e7b657eeaf3156c6fc33b5fc5247a2f41164 442637f36cba962ffc87ad7879b332eda372061b834b9348a78ebffbade85c62 486e0a442084d4bcc1bfa2f60102288e752a0911f5ff74c545588812d34d1f03 4e468fef531b801579322aa574533004fd45ad82396e25ed917e3c8363a58a4c 4f0459a6c678e31074f3199f3316940adff870f58ad32e068f2fff60cd7a31f5 5202ea0c9b642edc7f689ce2490e7a6b1b32dbcbdd3b0efd3c418555c3cdb8c8
*See JSON for more IOCs

Coverage

Product Protection
AMP This has coverage
Cloudlock N/A
CWS This has coverage
Email Security This has coverage
Network Security This has coverage
Stealthwatch N/A
Stealthwatch Cloud N/A
Threat Grid This has coverage
Umbrella N/A
WSA N/A

Screenshots of Detection

ThreatGrid



MITRE ATT&CK





Win.Trojan.Vobfus-9872901-0

Indicators of Compromise

  • IOCs collected from dynamic analysis of 40 samples
Registry Keys Occurrences
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\SYSTEM
Value Name: EnableLUA
18
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\ADVANCED
Value Name: ShowSuperHidden
18
<HKLM>\SOFTWARE\WOW6432NODE\MICROSOFT\SECURITY CENTER
Value Name: UACDisableNotify
18
<HKLM>\SOFTWARE\POLICIES\MICROSOFT\WINDOWS\WINDOWSUPDATE\AU 18
<HKLM>\SOFTWARE\POLICIES\MICROSOFT\WINDOWS\WINDOWSUPDATE\AU
Value Name: NoAutoUpdate
18
<HKLM>\SOFTWARE\POLICIES\MICROSOFT\WINDOWS\WINDOWSUPDATE 18
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\EXPLORER\RUN 1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: vltuq
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: mxpay
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: peefeoj
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: gauqa
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: cujig
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: liois
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: yiaeci
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: zeoteav
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: djloup
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: xrlis
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: bgkiix
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: maiodiy
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: faewo
1
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\EXPLORER\RUN
Value Name: 36412
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: baoud
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: bomas
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: cmgom
1
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\STARTPAGE
Value Name: StartMenu_Balloon_Time
1
Mutexes Occurrences
Global\<random guid> 20
A 18
2562100796 1
lol 1
1823357303 1
IP Addresses contacted by malware. Does not indicate maliciousness Occurrences
178[.]162[.]203[.]202 3
85[.]17[.]31[.]82 3
178[.]162[.]217[.]107 1
52[.]137[.]90[.]34 1
188[.]127[.]249[.]119 1
Domain Names contacted by malware. Does not indicate maliciousness Occurrences
ns1[.]timechk6[.]com 18
ns1[.]timechk7[.]com 18
ns1[.]timechk9[.]com 18
ns1[.]timechk5[.]com 18
ns1[.]timechk10[.]com 18
ns1[.]timechk11[.]com 18
ns1[.]timechk12[.]com 18
ns1[.]timechk13[.]com 18
ns1[.]timechk15[.]com 18
ns1[.]timechk16[.]com 18
ns1[.]timechk17[.]com 18
ns1[.]timechk18[.]com 18
ns1[.]timechk1[.]com 18
ns1[.]timechk2[.]com 18
ns1[.]timechk3[.]com 18
ns1[.]timechk4[.]com 18
ns1[.]timechk20[.]com 15
ns1[.]timechk22[.]com 15
ns1[.]timechk23[.]com 7
wc3start[.]ru 1
Files and or directories created Occurrences
\System Volume Information.exe 18
\$RECYCLE.BIN.exe 18
E:\$RECYCLE.BIN.exe 18
E:\System Volume Information.exe 18
\<random, matching '[a-z]{4,7}'>.exe 18
E:\<random, matching '[a-z]{4,7}'>.exe 18
\Music.lnk 17
\Passwords.lnk 17
\Pictures.lnk 17
\Favourites.lnk 17
\Movies.lnk 17
\Private.lnk 17
\Search.lnk 17
\Secret Folder.lnk 17
\Love You.exe 17
\Money.exe 17
\Nude.exe 17
\Sex.exe 17
E:\Favourites.lnk 17
E:\Movies.lnk 17
E:\Music.lnk 17
E:\Passwords.lnk 17
E:\Pictures.lnk 17
E:\Private.lnk 17
E:\Search.lnk 17
*See JSON for more IOCs

File Hashes

0698994222c22dcce112ba72fb61d630038984ffa3db7ff36436ecfb215afbd7 082380ca7f219c19162935d802ce158828adfe2bf83d69bdc985791d573b1a0c 08ca5f1d0c41b7a6c3596d1a6f1886a5b69adb721c0d2ef2cf52f140f7ff9fbf 0967b8bfbf17cfc2cc937dbb3be30e1b1c6073642ab7514bbe805b649bec22d1 0ae2ba9b75d9db518d5177b9225f8a5bfa9c2487ec5b7fba0d09ac8413d9f7d6 0beef6b5d706e804a9ab536d49ec99cffdb358f2b86ddeecd1e24592ba812c7b 0e5b3197e98b8c50cd1b945ec47276f0f7ebdc25542c9c60ed2d986e2e9e8c62 0eb98c1f8343ce6132d47d5e199f755fa11448c6e495c13105927399f05dbfda 1b5a6e3abcc488d89dd06d25a9016e745ec11aa400763c18ada05ef45a3369af 1bc7e06b322ac2f8b316c5c090a0bdde23675a0a68960a7893f20d0b1f38db78 24a84967e59673dd2d1294f7cb729c093748bf6d3ef2794ea6442089c4d0e2c6 26911607801a1486767506dab36cbb37b510a55f5669a1956fc7674727369f15 289ab25a154dd4e61484af03ce0ab630d1073448f7d2235161fc99f640d3e715 2a1dea631b1ad78cfefdd3b389aae9b4fbf3d810b80c03c2fce3dd647d2e57dc 2c92dd778e3c573e40d67db6e679f607d433daf8887ef539f0501a7bdf38267f 2dc30ee1ef77746cb24fa9986bff646e6414bd041ddc701b915ce473fda83451 3140832d4b9d93dc2b874166d968173c54343e8e86cd803d6d70572b26438fd1 31650ebaec650c3ae2a95ebc0b631d7a5600c3dc632d89f5f027cc02602c174d 3249f0709105250b850e4bd3997f17b63524b89fdecccba579bf6e21dd227759 3481c715af1fec9790d33abf2aa0dc5c30f22057d1bc3b45ac3b2610e38dbd80 3499e5eb5795cac2fbbb2f640da5babcf79899efb146bc4f33db0090ee1d5386 3a77c7ec6558c3e30290ed28372a8e6b70a904779fbfbde70693629910b2efdf 3fde7bf40919c22aee56983c42436c029053c018adfe92e6a31e5ca64007a226 4b78a4629fad26d14607bf9fe9185cc0cca16b4df4ed594888cd741140020a7a 4c5841aa6e5796741c1a8f298a7c7c1a4d1aada41a8cee5280321eff8d78e56f
*See JSON for more IOCs

Coverage

Product Protection
AMP This has coverage
Cloudlock N/A
CWS This has coverage
Email Security This has coverage
Network Security This has coverage
Stealthwatch N/A
Stealthwatch Cloud N/A
Threat Grid This has coverage
Umbrella This has coverage
WSA This has coverage

Screenshots of Detection

ThreatGrid



MITRE ATT&CK





Win.Malware.Razy-9874047-0

Indicators of Compromise

  • IOCs collected from dynamic analysis of 27 samples
Registry Keys Occurrences
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\\SIGNATURES
Value Name: Google_Trk_Updater.job
1
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\\SIGNATURES
Value Name: Google_Trk_Updater.job.fp
1
Mutexes Occurrences
<random, matching [A-Z0-9]{10}> 27
IP Addresses contacted by malware. Does not indicate maliciousness Occurrences
172[.]217[.]9[.]238 21
104[.]21[.]73[.]114 17
172[.]67[.]144[.]180 11
172[.]67[.]71[.]207 11
104[.]26[.]10[.]101 9
209[.]85[.]144[.]138/31 8
209[.]85[.]144[.]113 6
209[.]85[.]144[.]100/31 6
209[.]85[.]144[.]102 5
104[.]26[.]11[.]101 5
172[.]217[.]10[.]14 2
171[.]25[.]193[.]9 1
23[.]3[.]13[.]154 1
205[.]185[.]216[.]10 1
172[.]217[.]164[.]174 1
172[.]217[.]12[.]238 1
172[.]217[.]13[.]238 1
172[.]217[.]2[.]110 1
193[.]108[.]117[.]41 1
37[.]187[.]179[.]73 1
Domain Names contacted by malware. Does not indicate maliciousness Occurrences
w[.]google[.]com 27
zipansion[.]com 27
regecish[.]net 27
www3[.]l[.]google[.]com 11
cds[.]d2s7q6s2[.]hwcdn[.]net 1
www[.]bxiodsntiq[.]com 1
www[.]3azh9zmplx[.]com 1
www[.]mtdyefgljr[.]com 1
www[.]ln5psuljfl[.]com 1
www[.]evqvjexv0z[.]com 1
www[.]iywrfdlzew[.]com 1
www[.]lhgmgjopvz[.]com 1
www[.]imb0re3zuz[.]com 1
www[.]h3jktzy8rr[.]com 1
www[.]kq06diz51h[.]com 1
www[.]zgfab2rvak[.]com 1
www[.]skvqbjosip[.]com 1
www[.]gxjlknsfyn[.]com 1
www[.]pn9l8ariho[.]com 1
www[.]xc7nrrynui[.]com 1
www[.]ahvrwbmcpq[.]com 1
www[.]ff5t5jnwlm[.]com 1
www[.]vca8iode2c[.]com 1
www[.]ovpwwiqbip[.]com 1
www[.]kzjbyovatz[.]com 1
*See JSON for more IOCs
Files and or directories created Occurrences
%System32%\Tasks\Google_Trk_Updater 27
<malware cwd>\old_<malware exe name> (copy) 25

File Hashes

00412b8ad50be1ff1dfbefaff1d3ac8f8bf687968e9edc8f11c766c4c28f822a 02889ad19293dbc838ca97d74144b32a7b56ea1bc7ed189afd96b97940795a3a 11c2292916618c14e1f31ced417ee20195120e5cbce2c8a2e732ab33e3ebdc48 2370706b43caeaf35a2ce85c00d3781e8258f2c4ccc1ff49ba77a6fd00eb8eda 2afcc5303e09945583e68760975ab84738083253f02bd1989c7d1bfa3b933a6e 2f77e7d20ef608f8c9423821ffa34356644eebcc39d812470b38afa63e03d6b5 3211a39558555392cf89c75265a6cc236e093763c6a250b41e7273980d8096bf 346b14063ad757c9e1f836de6618d5d75d72fb3f5dfa319b737dddca9d9b23f8 3680e5cb9a4c98d6b8511738f80fcdde154d53569ae829731838f9f1a92be6fb 382b1066f19f544528c3beb554967ed163e43daaf2ee4ebda39cb3bb09bbac53 386f1f4843d518324945a1936b3c677925ba7679e1baabef2ce5439e594c307a 4f5b4ea59d5cb0e663675e774298eba6087cee3bc3613868121a7311e04b120c 67452a2f9169b40e42efe2c8fe515d3036c6638b55512558a797474e557d0b9b 67694dcc1d7887481b3606cbb771f11348a481663fe5a22d658300edf5ad5a65 6b12962ae614d6821b52b8dd807936cb6a96e4155f789d8754e2b638e11bdd2b 7769550b5794272398ae3c929789756eb5b4cc545242da4dd232fb2f39eeee1f 8098d274b2518658f6a42ba6a0a23a0b7fbb79cbe9a1ce9a0cce8e13895db9eb 842510c6c1d3514bdba281e7cea7c81b5b30fdc59908093a640d5ff686bd4747 91012e1d1b5374c4a98de615557a9f3bc43435b4da47dec986fc53c4a5991ce6 a4623dad01d2a70fd3eb4ae1d81c2e1afb06d1ed86b95ce68fa4f1b383b19ac8 aa605368883fd4761ccb6919add4b95ae6a5b0b6ee158a8fec85406e440256b1 b22f4098ab448b57d076a32d73dff96ea27c9b4a922910630c50efa63ee64788 be6c541d699cd6a9b1eb044c946a7e0f2bacbab3c392746169c01450ac550f21 c1eae8b402424d75d16be60c75d2f96799811d92f6e91a283f502c5aff265ce9 c84a89ff77c5970f80841428152ba49f0f0e4ece92eca56ee103cacde983153d
*See JSON for more IOCs

Coverage

Product Protection
AMP This has coverage
Cloudlock N/A
CWS This has coverage
Email Security This has coverage
Network Security This has coverage
Stealthwatch N/A
Stealthwatch Cloud N/A
Threat Grid This has coverage
Umbrella N/A
WSA N/A

Screenshots of Detection

AMP



ThreatGrid



MITRE ATT&CK





Win.Trojan.Kovter-9872967-1

Indicators of Compromise

  • IOCs collected from dynamic analysis of 26 samples
Registry Keys Occurrences
<HKLM>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\EXPLORER\RUN 26
<HKCU>\SOFTWARE\MICROSOFT\INTERNET EXPLORER\MAIN\FEATURECONTROL\FEATURE_BROWSER_EMULATION
Value Name: explorer.exe
25
<HKCU>\SOFTWARE\MICROSOFT\INTERNET EXPLORER\MAIN\FEATURECONTROL\FEATURE_BROWSER_EMULATION
Value Name: iexplore.exe
25
<HKLM>\SOFTWARE\WOW6432NODE\MICROSOFT\INTERNET EXPLORER\MAIN\FEATURECONTROL\FEATURE_BROWSER_EMULATION
Value Name: explorer.exe
25
<HKLM>\SOFTWARE\WOW6432NODE\MICROSOFT\INTERNET EXPLORER\MAIN\FEATURECONTROL\FEATURE_BROWSER_EMULATION
Value Name: iexplore.exe
25
<HKLM>\SOFTWARE\WOW6432NODE\07771B47
Value Name: 18f8f764
25
<HKCU>\SOFTWARE\07771B47
Value Name: 18f8f764
25
<HKLM>\SOFTWARE\WOW6432NODE\07771B47
Value Name: 956299e5
25
<HKCU>\SOFTWARE\07771B47
Value Name: 956299e5
25
<HKLM>\SOFTWARE\WOW6432NODE\07771B47
Value Name: 8de2c2e8
25
<HKCU>\SOFTWARE\07771B47
Value Name: 8de2c2e8
25
<HKLM>\SOFTWARE\WOW6432NODE\07771B47 25
<HKCU>\SOFTWARE\07771B47 25
<HKCU>\SOFTWARE\MICROSOFT\INTERNET EXPLORER\MAIN\FEATURECONTROL\FEATURE_BROWSER_EMULATION
Value Name: dllhost.exe
25
<HKLM>\SOFTWARE\WOW6432NODE\MICROSOFT\INTERNET EXPLORER\MAIN\FEATURECONTROL\FEATURE_BROWSER_EMULATION
Value Name: dllhost.exe
25
<HKLM>\SOFTWARE\WOW6432NODE\07771B47
Value Name: 412841e8
25
<HKCU>\SOFTWARE\07771B47
Value Name: 412841e8
25
<HKLM>\SOFTWARE\WOW6432NODE\07771B47
Value Name: 013c41ca
9
<HKCU>\SOFTWARE\07771B47
Value Name: 013c41ca
9
<HKLM>\SOFTWARE\WOW6432NODE
Value Name: D5CD1256CF8CECDE127
2
<HKLM>\SOFTWARE\WOW6432NODE
Value Name: D0DF3D9DECA0820348B4
2
<HKLM>\SOFTWARE\WOW6432NODE
Value Name: E31D51597EFF158F
1
<HKLM>\SOFTWARE\WOW6432NODE
Value Name: A8ECE31ACD562C8260A
1
<HKLM>\SOFTWARE\WOW6432NODE
Value Name: 3E930AC85BC4C01EDC76
1
<HKLM>\SOFTWARE\WOW6432NODE
Value Name: 77E89E08D938EF38985
1
Mutexes Occurrences
C77D0F25 25
Global\07771b47 25
244F2418 25
906A2669 25
CC358165 23
Global\7ac86df7 23
20A0CE49 23
Global\7df04eda 1
<random, matching [a-zA-Z0-9]{5,9}> 1
IP Addresses contacted by malware. Does not indicate maliciousness Occurrences
96[.]6[.]27[.]90 25
23[.]209[.]185[.]165 18
40[.]76[.]4[.]15 8
96[.]6[.]29[.]35 6
104[.]215[.]148[.]63 5
40[.]112[.]72[.]205 4
40[.]113[.]200[.]201 3
148[.]131[.]183[.]188 2
131[.]139[.]95[.]33 2
59[.]105[.]211[.]101 2
85[.]10[.]234[.]189 2
94[.]30[.]185[.]181 2
102[.]116[.]189[.]249 2
196[.]158[.]224[.]65 2
32[.]155[.]198[.]200 2
157[.]110[.]152[.]214 2
105[.]95[.]2[.]12 2
11[.]96[.]243[.]42 2
52[.]119[.]28[.]246 2
136[.]181[.]148[.]24 2
84[.]178[.]73[.]87 2
115[.]197[.]43[.]3 2
187[.]153[.]121[.]203 2
9[.]127[.]28[.]179 2
187[.]239[.]156[.]233 2
*See JSON for more IOCs
Domain Names contacted by malware. Does not indicate maliciousness Occurrences
cds[.]d2s7q6s2[.]hwcdn[.]net 1
apps[.]digsigtrust[.]com 1
apps[.]identrust[.]com 1
microsoft[.]com 1
futures[.]io 1
Files and or directories created Occurrences
%TEMP%\install_flash_player_18_active_x.exe 24

File Hashes

0087803b6977dfd724e1ea0cfe0954aceb2d46d21bd819b84be77473bdffdc88 01b4637773d8dcede295dc7de88e3dcc30af6560412f7b76ea0fd61036ced470 047da19ec1b9927dacb13ff993ed7cca7db76add1165fe54f26e2831035910fa 05ba0f01efab7bb741c8294cef55d26c5a0595c04a2be8277f1f91be0f0cf93b 06c35533e828c87ccdac3ff15fd286854f646dbee6d460643cbceb9eb35d7418 0724c6c62812b39750cd42dfcbc56505cdfb02a9ba4e2a09ee4688d27968571a 0886286563d2ad07b407cd179c6d2ac8b39c787d25eb3a45671d7bf5016dfc77 0d7a0d1836cce3abd1e3cba1d9e0770787522300faacb9edf45d559b1a8e63d3 0fb83d4b8902a7b849c9dcdcb41a88ce8a1307b14c8d0d22027bdb91d680af5b 150e386939c64b8adc55b979384ea0fce5aad6e15561b70606fabdcadc6dc5fa 18a1ec2323add4c5f2ce7e1549828292cc0aff471fbf42e7a8f0226bb0067b24 1b2c3dd1b5343411b0e50992cc4f65585178b6d2c16e8ab458671b31d2440301 1b661dd665971343097d93ad278f43a3b7bc3fa49f1cd63ff4aad5fd640ec4bd 220be898c90e49ab919a6a9fe750f84bfdb763545f7ce6d72235f37a85e24962 2bede4444091e7b38bbb477fc5d3ab7f9cf476cc9c8c75084f9ba797130323f3 2ef0e136f88ccc9432782ca7a3099ef8101e4f273fe1b2d6db2bf00cf076c079 351e765c5794fb75c19c85e580c0a05929e53ca554fc221b9366971914fa3e86 35d38fefa59ba35f2e6266b9cf9192630ac90e1e9a11c8176d13847c22223c19 3e31b8001e0d2bcc5c6b43a98f0b1e62410cedadf035a92bb5d7f9c17fb5ac0c 3ed380ea18882e6df8ae4b82bb7aa7e2716ef2770646a567114eb7fa3787cf0d 3fb57da9e1991e91b0576c8db566165c9618ea156e411995065d850e28582fe4 440d5e51bd6cc909df5d8eea0a22fe7d1ad6ee5d36d11a2e2eed70432323c766 45f599448de17b04762d91718fc1e0296e4afe392c013ec43ab3fe4fcc9a2be1 48fdb1d5a455efdbd327285abe44bb2f6554da01b8be4eae46b72163bcd75c06 4f93908082d23e27744c81dd1009052e0da0d26999951099ba43a7369534efab
*See JSON for more IOCs

Coverage

Product Protection
AMP This has coverage
Cloudlock N/A
CWS This has coverage
Email Security This has coverage
Network Security This has coverage
Stealthwatch N/A
Stealthwatch Cloud N/A
Threat Grid This has coverage
Umbrella N/A
WSA N/A

Screenshots of Detection

ThreatGrid



MITRE ATT&CK





Win.Malware.Redline-9873418-1

Indicators of Compromise

  • IOCs collected from dynamic analysis of 21 samples
Registry Keys Occurrences
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION
Value Name: SysHelper
3
<HKCU>\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN
Value Name: SysHelper
3
Mutexes Occurrences
uiabfqwfuAdministrator 5
Global\<random guid> 5
{1D6FC66E-D1F3-422C-8A53-C0BBCF3D900D} 3
uiabfqwfu ' w 1
uiabfqwfu '|w 1
uiabfqwfu 'pw 1
uiabfqwfu '@w 1
uiabfqwfu '0w 1
IP Addresses contacted by malware. Does not indicate maliciousness Occurrences
45[.]146[.]164[.]230 7
192[.]35[.]177[.]64 5
104[.]26[.]12[.]31 5
95[.]216[.]186[.]40 5
34[.]76[.]8[.]115 5
23[.]46[.]238[.]194 4
104[.]26[.]13[.]31 4
159[.]69[.]20[.]131 4
74[.]114[.]154[.]18 3
77[.]123[.]139[.]190 3
194[.]147[.]84[.]117 3
74[.]114[.]154[.]22 2
172[.]67[.]75[.]172 2
185[.]215[.]113[.]64 2
8[.]253[.]132[.]120 1
8[.]253[.]45[.]248 1
8[.]249[.]241[.]254 1
8[.]249[.]227[.]254 1
185[.]215[.]113[.]17 1
185[.]215[.]113[.]15 1
Domain Names contacted by malware. Does not indicate maliciousness Occurrences
api[.]ip[.]sb[.]cdn[.]cloudflare[.]net 9
api[.]ip[.]sb 9
pupdatastart[.]tech 7
apps[.]digsigtrust[.]com 5
apps[.]identrust[.]com 5
tttttt[.]me 5
bandakere[.]tumblr[.]com 5
auto[.]au[.]download[.]windowsupdate[.]com[.]c[.]footprint[.]net 4
api[.]2ip[.]ua 3
vrta[.]top 3
Files and or directories created Occurrences
%TEMP%\tmp<random, matching [A-F0-9]{1,4}>.tmp 14
%LOCALAPPDATA%\Yandex 11
%LOCALAPPDATA%\Yandex\YaAddon 11
%HOMEPATH%\AppData\LocalLow\a1xVPfvJc 5
%HOMEPATH%\AppData\LocalLow\frAQBc8Ws 5
%HOMEPATH%\AppData\LocalLow\machineinfo.txt 5
%HOMEPATH%\AppData\LocalLow\sqlite3.dll 5
%TEMP%\<random, matching '[a-z]{3}[A-F0-9]{3,4}'>.tmp 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-core-profile-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-core-rtlsupport-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-core-string-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-core-synch-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-core-synch-l1-2-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-core-sysinfo-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-core-timezone-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-core-util-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-crt-conio-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-crt-convert-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-crt-environment-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-crt-filesystem-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-crt-heap-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-crt-locale-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-crt-math-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-crt-multibyte-l1-1-0.dll 3
%HOMEPATH%\AppData\LocalLow\nW6mI-7yS1k\api-ms-win-crt-private-l1-1-0.dll 3
*See JSON for more IOCs

File Hashes

0320dd66de4f84f7607b0101a31af959e3dbf746ab97fff76a7aff0628241d62 09b7ed020bb255eb4284772e94f4e5e368080e44adf145985828fbf5faf2e044 12f01321dc6187664fce4ae6b7f957f4ae1672c95b8a27ebbbf8e949b4d35bc4 215d2d386c3e2bb3146cf6b32cc03a314f4fd239c0b3d64c98e30daf5464b7ff 28a1b0e4d5429d3dc12e5b1fb06b54c10b0464d91e24edbd3835a0cad1d221e7 36de9804f2af6758c161bd17bd8969b2f28733c26b88a4deae721cecc224d7e2 50e0a43ab3813a9150d51f14f8a261aa3bf9486bf206ffc33729553de244c098 553ee5cc87e4268f2439e9dd36b4b35afc9d06cc62dad7e05d31348b9cf7d7cf 5caae55f4d696fd2f42e3ab9c2ae19ea272821bc14bad4fa047697a9cc2a4043 68c613f1e7cb5ebedb94ee3c4bf76374a372fdaffb05c0c779e14d247c1ebe20 71eca0e7620f3361b421f6e0b3d9ba62e2d79c853b4e2abea0175bd0fce499df 786f3ce891db4e9ceeecc7718ab3789ce546ed8f144bfa3f3458af81cf2c46f9 7e44149dd8d86c08488463fe90d4fd08b3ba9f0f613592121199abc8f1a0724e 7f7d3035b68e68c30a0fa688ae44c833d316c3c95a9206412caa48a385988ff0 93c59c395879af81782fc0cba6f4498c4553620ba1aeeb0de3f8154de3fa2a7a b5faea7bf026d8d8d7b782009ffa7e1215a994bb80b6b46e7cb58c7709bad21a cd8d9697e0980b579b9cbb9e02d5085ca31de54ed0e348c5d22ac8c628951c58 d429e634b43a7567fcb39469c1b5a49bb8ce5db49720e3e8ba8f5a30472fd5f2 db710c90eaa2f83be99f1004b9eda6cfbf905a1ab116d1738a89f4eac443f4fe e38f03bff4d8c9989751bfd127fbc1b983c11281edfb3b0f761a9764abd0dff4 ea62f8b921e614769f8d877e2da7f081c86233838c120b5dd24d0a8d5a2e9c6e

Coverage

Product Protection
AMP This has coverage
Cloudlock N/A
CWS This has coverage
Email Security This has coverage
Network Security This has coverage
Stealthwatch N/A
Stealthwatch Cloud N/A
Threat Grid This has coverage
Umbrella This has coverage
WSA This has coverage

Screenshots of Detection

AMP



ThreatGrid



MITRE ATT&CK





Win.Malware.CoinMiner-9873034-1

Indicators of Compromise

  • IOCs collected from dynamic analysis of 24 samples
Registry Keys Occurrences
<HKLM>\SYSTEM\CONTROLSET001\CONTROL\POWER\USER\POWERSCHEMES
Value Name: ActivePowerScheme
14
<HKLM>\SYSTEM\CONTROLSET001\CONTROL\POWER\USER\POWERSCHEMES\381B4222-F694-41F0-9685-FF5BB260DF2E\238C9FA8-0AAD-41ED-83F4-97BE242C8F20 14
<HKLM>\SYSTEM\CONTROLSET001\CONTROL\POWER\USER\POWERSCHEMES\381B4222-F694-41F0-9685-FF5BB260DF2E\238C9FA8-0AAD-41ED-83F4-97BE242C8F20\29F6C1DB-86DA-48C5-9FDB-F2B67B1F44DA 14
<HKLM>\SYSTEM\CONTROLSET001\CONTROL\POWER\USER\POWERSCHEMES\381B4222-F694-41F0-9685-FF5BB260DF2E\238C9FA8-0AAD-41ED-83F4-97BE242C8F20\29F6C1DB-86DA-48C5-9FDB-F2B67B1F44DA
Value Name: ACSettingIndex
14
IP Addresses contacted by malware. Does not indicate maliciousness Occurrences
94[.]130[.]143[.]162 12
88[.]99[.]142[.]163 12
136[.]243[.]102[.]154 12
188[.]120[.]236[.]34 10
104[.]26[.]12[.]31 5
104[.]26[.]13[.]31 3
49[.]12[.]80[.]40 2
172[.]67[.]75[.]172 2
49[.]12[.]80[.]38/31 2
Domain Names contacted by malware. Does not indicate maliciousness Occurrences
bcn[.]pool[.]minergate[.]com 12
api[.]ip[.]sb 10
xmr[.]pool[.]minergate[.]com 2
Files and or directories created Occurrences
%TEMP%\7ZipSfx.000 24
%ProgramData%\Upload 14
%ProgramData%\Upload\Go.bat 14
%ProgramData%\Upload\Go.vbs 14
%ProgramData%\Upload\Hide.bat 14
%ProgramData%\Upload\Hide.vbs 14
%ProgramData%\Upload\bit.exe 14
%ProgramData%\Upload\conr.bat 14
%ProgramData%\Upload\conr.vbs 14
%ProgramData%\Upload\msvcr120.dll 14
%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\OneDriveSetup.lnk 14
%LOCALAPPDATA%\Yandex 10
%LOCALAPPDATA%\Yandex\YaAddon 10
%TEMP%\tmp<random, matching [A-F0-9]{1,4}>.tmp 10
%TEMP%\7ZipSfx.000\bit.exe 2
%TEMP%\Gg487h687E28gG\7z.dll 1
%TEMP%\Gg487h687E28gG\7z.exe 1
%TEMP%\Gg487h687E28gG\86.dll 1
%TEMP%\Gg487h687E28gG\KillDuplicate.cmd 1
%TEMP%\Gg487h687E28gG\payload.data 1
%TEMP%\Gg487h687E28gG\pl.dll 1
%TEMP%\Gg487h687E28gG\svchost.cmd 1
%TEMP%\Gg487h687E28gG\extracted\file7.zip 1
%TEMP%\Gg487h687E28gG\extracted\file6.zip 1
%TEMP%\Gg487h687E28gG\extracted\file5.zip 1
*See JSON for more IOCs

File Hashes

03057767795b8ea4977769b52eb1765fff23e1c3cf0ea79c5e9e72432d19d7e1 0f32589221fe5ad1ba7ae87a73ea276fce091b5b5f46cb4bbc822d427b28b788 0f7d103f12e3e57e837d65940ccf8c66ecd7862e72d8e0e8dca02defd61bebda 14c4e4da0c078f63a6c81f328d7491ad25355cb5a65fa10169e17ff5e7df4138 1da116bd3b528906cc3346d2db8458539dc3efb74ffeeff4304aa7bfd2d551c6 2578f8bd2af90c10554e798931cc2bdf866c574773482564a30c2edd5debe454 309329fb539b889723bd126b0e14c6ac53c4d2bcfbab369c712fa03ce6dd690a 489af2c4b387e15e64d108b06ce350c17dced46fc77729ef226d2dbd4041c34d 6014995777544315673a3acc17a149b9d0441586b3863a72ef5f5649131e8a02 6b65abaf20a9cdbcc854b9d95e92cca545f92d87d8c8e83ec84a3264210dba0c 779db83b648a296b5f4592213f20a0e04b03101bb9b76d71cb6fbf8a3a0d3c67 79e397d932d4b49c2aebc223fc72ce7d82e390319f7329ca1997cad244b0666b 7b64b526fbc317fcdcfce6b2397e7e9176f33bbd46e99d27b493b5a8bc691d8d 82133fc49050edb5f7f59ae119c41b7dd2bd44306978ba575b72a1841b8c668f ab69af99c699499282a1a0d1ad65e3f09876cabe846dbf44bfb535bcc32c5877 ad23ef6946ac637aa3ddeac512156d94f6559fbad351fa29bf1d6bb561eaaedb b58ec539867a55cf7e5b175e154d3df13954e60f51e5c6789c707ccdec06e5d4 ba2f096ac5277fd104707d313628740038faabd9aed79207c698fa8f7acb1aef c804cd2effe556732580c1b8dcadf160978c2907f63c32142027cd607bbc9fdc cba5530b25fa76e7fbac6019c3bcb577b5c26bd4039e11b8f8dde42466e2da08 d1c93c9c3f0561b750beea191eeef53b50eb6e8a1e153ea9a2f53e270ee9a4f1 dc1f0da6b942de9f5d0a24e8608d8c807ff877b198ee9576425d57c70c9a0b70 eb9b6ef36be0e4529d9878d7aa95c5a07652e3fc71280f1df26ffa22d93394bf ee757902f2f77ac0278efd3e957a27a050aeb57f71eb4af8b11882d3d576b881

Coverage

Product Protection
AMP This has coverage
Cloudlock N/A
CWS This has coverage
Email Security This has coverage
Network Security This has coverage
Stealthwatch N/A
Stealthwatch Cloud N/A
Threat Grid This has coverage
Umbrella N/A
WSA This has coverage

Screenshots of Detection

ThreatGrid



MITRE ATT&CK





Exploit Prevention

Cisco AMP for Endpoints protects users from a variety of malware functions with exploit prevention. Exploit prevention helps users defend endpoints from memory attacks commonly used by obfuscated malware and exploits. These exploits use certain features to bypass typical anti-virus software, but were blocked by AMP thanks to its advanced scanning capabilities, even protecting against zero-day vulnerabilities.

Process hollowing detected - (9505)
Process hollowing is a technique used by some programs to avoid static analysis. In typical usage, a process is started and its obfuscated or encrypted contents are unpacked into memory. The parent then manually sets up the first stages of launching a child process, but before launching it, the memory is cleared and filled in with the memory from the parent instead.
Reverse tcp payload detected - (4801)
An exploit payload intended to connect back to an attacker controlled host using tcp has been detected.
Excessively long PowerShell command detected - (3982)
A PowerShell command with a very long command line argument that may indicate an obfuscated script has been detected. PowerShell is an extensible Windows scripting language present on all versions of Windows. Malware authors use PowerShell in an attempt to evade security software or other monitoring that is not tuned to detect PowerShell based threats.
Crystalbit-Apple DLL double hijack detected - (1660)
Crystalbit-Apple DLL double hijack was detected. During this attack, the adversary abuses two legitimate vendor applications, such as CrystalBit and Apple, as part of a dll double hijack attack chain that starts with a fraudulent software bundle and eventually leads to a persistent miner and in some cases spyware deployment.
A Microsoft Office process has started a windows utility. - (854)
A process associated with Microsoft Office, such as EXCEL.exe or WINWORD.exe, has started a Windows utility such as powershell.exe or cmd.exe. This is typical behavior of malicious documents executing additional scripts. This behavior is extremely suspicious and is associated with many malware different malware campaigns and families.
Squiblydoo application control bypass attempt detected. - (806)
An attempt to bypass application control via the "Squiblydoo" technique has been detected. This typically involves using regsvr32.exe to execute script content hosted on an attacker controlled server.
Kovter injection detected - (517)
A process was injected into, most likely by an existing Kovter infection. Kovter is a click fraud Trojan that can also act as an information stealer. Kovter is also file-less malware meaning the malicious DLL is stored inside Windows registry and injected directly into memory using PowerShell. It can detect and report the usage of monitoring software such as wireshark and sandboxes to its C2. It spreads through malicious advertising and spam campaigns.
Dealply adware detected - (317)
DealPly is adware, which claims to improve your online shopping experience. It is often bundled into other legitimate installers and is difficult to uninstall. It creates pop-up advertisements and injects advertisements on webpages. Adware has also been known to download and install malware.
CVE-2019-0708 detected - (140)
An attempt to exploit CVE-2019-0708 has been detected. The vulnerability, dubbed BlueKeep, is a heap memory corruption which can be triggered by sending a specially crafted Remote Desktop Protocol (RDP) request. Since this vulnerability can be triggered without authentication and allows remote code execution, it can be used by worms to spread automatically without human interaction.
Gamarue malware detected - (117)
Gamarue is a family of malware that can download files and steal information from an infected system. Worm variants of the Gamarue family may spread by infecting USB drives or portable hard disks that have been plugged into a compromised system.

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