Cisco Talos Blog

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.

April 4, 2024 08:00

CoralRaider targets victims’ data and social media accounts

Cisco Talos discovered a new threat actor we’re calling “CoralRaider” that we believe is of Vietnamese origin and financially motivated. CoralRaider has been operating since at least 2023, targeting victims in several Asian and Southeast Asian countries.

March 13, 2024 08:00

Threat actors leverage document publishing sites for ongoing credential and session token theft

Talos IR has responded to several recent incidents in which threat actors used legitimate digital document publishing sites such as Publuu and Marq to host phishing documents as part of ongoing credential and session harvesting attacks.

March 5, 2024 08:00

GhostSec’s joint ransomware operation and evolution of their arsenal

Cisco Talos observed a surge in GhostSec, a hacking group’s malicious activities since this past year. GhostSec has evolved with a new GhostLocker 2.0 ransomware, a Golang variant of the GhostLocker ransomware.

February 27, 2024 08:00

TimbreStealer campaign targets Mexican users with financial lures

Talos has observed a phishing spam campaign targeting potential victims in Mexico, luring users to download a new obfuscated information stealer we’re calling TimbreStealer, which has been active since at least November 2023.

February 22, 2024 08:00

TinyTurla-NG in-depth tooling and command and control analysis

Cisco Talos, in cooperation with CERT.NGO, has discovered new malicious components used by the Turla APT. New findings from Talos illustrate the inner workings of the command and control (C2) scripts deployed on the compromised WordPress servers utilized in the compromise we previously disclosed.

February 20, 2024 08:00

Astaroth, Mekotio & Ousaban abusing Google Cloud Run in LATAM-focused malware campaigns

Since September 2023, we have observed a significant increase in the volume of malicious emails leveraging the Google Cloud Run service to infect potential victims with banking trojans.

February 15, 2024 08:00

TinyTurla Next Generation - Turla APT spies on Polish NGOs

This new backdoor we’re calling “TinyTurla-NG” (TTNG) is similar to Turla’s previously disclosed implant, TinyTurla, in coding style and functionality implementation.

February 14, 2024 08:00

How are attackers using QR codes in phishing emails and lure documents?

QR code attacks are particularly dangerous because they move the attack vector off a protected computer and onto the target’s personal mobile device, which usually has fewer security protections in place and ultimately has the sensitive information that attackers are after.