Cisco Talos Blog

August 21, 2024 06:00

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.”

August 1, 2024 08:00

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.

June 18, 2024 08:00

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.

June 5, 2024 08:00

DarkGate switches up its tactics with new payload, email templates

DarkGate has been observed distributing malware through Microsoft Teams and even via malvertising campaigns.

May 31, 2024 08:00

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.

May 22, 2024 08:17

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.

April 23, 2024 08:01

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.

April 17, 2024 07:59

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.

April 9, 2024 08:02

Starry Addax targets human rights defenders in North Africa with new malware

Cisco Talos is disclosing a new threat actor we deemed “Starry Addax” targeting mostly human rights activists, associated with the Sahrawi Arab Democratic Republic (SADR) cause with a novel mobile malware.