Cisco Talos Blog

February 17, 2021 08:00

Masslogger campaigns exfiltrates user credentials

By Vanja Svajcer. News summary * As protection techniques develop, attackers are finding it harder to successfully attack their targets and must find creative ways to succeed. * Cisco Talos recently discovered a campaign utilizing a variant of the Masslogger trojan designe

February 9, 2021 14:17

Kasablanka Group's LodaRAT improves espionage capabilities on Android and Windows

* The developers of LodaRAT have added Android as a targeted platform. * A new iteration of LodaRAT for Windows has been identified with improved sound recording capabilities. * The operators behind LodaRAT tied to a specific campaign targeting Bangladesh, although others h

November 18, 2020 11:00

Back from vacation: Analyzing Emotet’s activity in 2020

By Nick Biasini, Edmund Brumaghin, and Jaeson Schultz. Emotet is one of the most heavily distributed malware families today. Cisco Talos observes large quantities of Emotet emails being sent to individuals and organizations around the world on an almost daily basis. These emails

November 12, 2020 08:18

CRAT wants to plunder your endpoints

* Cisco Talos has observed a new version of a remote access trojan (RAT) family known as CRAT. * Apart from the prebuilt RAT capabilities, the malware can download and deploy additional malicious plugins on the infected endpoint. * One of the plugins is a ransomware known as &

July 29, 2020 11:00

Adversarial use of current events as lures

The goal of malicious activity is to compromise the system to install some unauthorized software. Increasingly that goal is tied to one thing: the user. Over the past several years, we as an industry improved exploit mitigation and the value of working exploits has increased acco

July 22, 2020 11:38

Prometei botnet and its quest for Monero

NEWS SUMMARY * We are used to ransomware attacks and big-game hunting making the headlines, but there are still methods adversaries use to monetize their efforts in less intrusive ways. * Cisco Talos recently discovered a cryptocurrency-mining botnet attack we're calling

June 29, 2020 13:59

PROMETHIUM extends global reach with StrongPity3 APT

By Warren Mercer, Paul Rascagneres and Vitor Ventura. News summary * The threat actor behind StrongPity is not deterred despite being exposed multiple times over the past four years. * They continue to expand their victimology and attack seemingly non related countries. *

June 24, 2020 15:52

Vulnerability Spotlight: Denial-of-service vulnerability in NVIDIA driver

Piotr Bania of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Executive summary The NVWGF2UMX_CFG.DLL driver contains a denial-of-service vulnerability that an attacker could use to disrupt processes over a virtual machine. An adversary could exploit this bug

June 22, 2020 13:40

IndigoDrop spreads via military-themed lures to deliver Cobalt Strike

By Asheer Malhotra. * Cisco Talos has observed a malware campaign that utilizes military-themed malicious Microsoft Office documents (maldocs) to spread Cobalt Strike beacons containing full-fledged RAT capabilities. * These maldocs use malicious macros to deliver a multist