BlackByte blends tried-and-true tradecraft with newly disclosed vulnerabilities to support ongoing attacks
In recent investigations, Talos Incident Response has observed the BlackByte ransomware group using techniques that depart from their established tradecraft. Read the full analysis.
MoonPeak malware from North Korean actors unveils new details on attacker infrastructure
Cisco Talos has uncovered a new remote access trojan (RAT) family we are calling “MoonPeak.” This a XenoRAT-based malware, which is under active development by a North Korean nexus cluster we are calling “UAT-5394.”
APT41 likely compromised Taiwanese government-affiliated research institute with ShadowPad and Cobalt Strike
ShadowPad, widely considered the successor of PlugX, is a modular remote access trojan (RAT) only seen sold to Chinese hacking groups.
Exploring malicious Windows drivers (Part 2): the I/O system, IRPs, stack locations, IOCTLs and more
As the second entry in our “Exploring malicious Windows drivers” series, we will continue where the first left off: Discussing the I/O system and IRPs.
DarkGate switches up its tactics with new payload, email templates
DarkGate has been observed distributing malware through Microsoft Teams and even via malvertising campaigns.
New banking trojan “CarnavalHeist” targets Brazil with overlay attacks
Since February 2024, Cisco Talos has been observing an active campaign targeting Brazilian users with a new banking trojan called “CarnavalHeist.” Many of the observed tactics, techniques and procedures (TTPs) are common among other banking trojans coming out of Brazil.
From trust to trickery: Brand impersonation over the email attack vector
Cisco recently developed and released a new feature to detect brand impersonation in emails when adversaries pretend to be a legitimate corporation.
Suspected CoralRaider continues to expand victimology using three information stealers
Talos also discovered a new PowerShell command-line argument embedded in the LNK file to bypass anti-virus products and download the final payload into the victims’ host.
OfflRouter virus causes Ukrainian users to upload confidential documents to VirusTotal
The documents contained malicious VBA code, indicating they may be used as lures to infect organizations.