Exploring vulnerable Windows drivers
This post is the result of research into the real-world application of the Bring Your Own Vulnerable Driver (BYOVD) technique along with Cisco Talos’ series of posts about malicious Windows drivers.
Unwrapping the emerging Interlock ransomware attack
Cisco Talos Incident Response (Talos IR) recently observed an attacker conducting big-game hunting and double extortion attacks using the relatively new Interlock ransomware.
Threat actors use copyright infringement phishing lure to deploy infostealers
Cisco Talos has observed a threat actor conducting a phishing campaign targeting Facebook business and advertising account users in Taiwan. This campaign delivers an information stealer onto the target's machine to avoid network security product detections.
Threat actor abuses Gophish to deliver new PowerRAT and DCRAT
Cisco Talos recently discovered a phishing campaign using an open-source phishing toolkit called Gophish by an unknown threat actor.
Threat actor believed to be spreading new MedusaLocker variant since 2022
The malware, called "BabyLockerKZ," has primarily affected users in Europe and South America.
Simple Mail Transfer Pirates: How threat actors are abusing third-party infrastructure to send spam
Many spammers have elected to attack web pages and mail servers of legitimate organizations, so they may use these “pirated” resources to send unsolicited email.
DragonRank, a Chinese-speaking SEO manipulator service provider
Cisco Talos is disclosing a new threat called “DragonRank” that primarily targets countries in Asia and a few in Europe, operating PlugX and BadIIS for search engine optimization (SEO) rank manipulation.
Vulnerability in Tencent WeChat custom browser could lead to remote code execution
While this issue was disclosed and patched in the V8 engine in June 2023, the WeChat Webview component was not updated, and still remained vulnerable when Talos reported it to the vendor.
Threat actors using MacroPack to deploy Brute Ratel, Havoc and PhantomCore payloads
The threat of VBA macros has diminished since Microsoft prevented the execution of macros in Microsoft Office documents downloaded from the internet, but not all users are using the latest up-to-date Office versions and can still be vulnerable.