RAT Ratatouille: Backdooring PCs with leaked RATs

Executive summary Orcus RAT and RevengeRAT are two of the most popular remote access trojans (RATs) in use across the threat landscape. Since its emergence in 2016, various adversaries used RevengeRAT to attack organizations and individuals around the world. The source code asso

DNSpionage Campaign Targets Middle East

Update 2018-11-27 15:30:00 EDT: A Russian-language document has been removed. Subsequent analysis leads us to believe it is unrelated to this investigation Executive Summary Cisco Talos recently discovered a new campaign targeting Lebanon and the United Arab Emirates (UAE) aff

Picking Apart Remcos Botnet-In-A-Box

This blog post was authored by Edmund Brumaghin and Holger Unterbrink with contributions from Eric Kuhla and Lilia Gonzalez Medina. Overview Cisco Talos has recently observed multiple campaigns using the Remcos remote access tool (RAT) that is offered for sale by a company cal

Fake AV Investigation Unearths KevDroid, New Android Malware

This blog post is authored by Warren Mercer, Paul Rascagneres, Vitor Ventura and with contributions from Jungsoo An. Summary Several days ago, EST Security published a post concerning a fake antivirus malware targeting the Android mobile platform. In the Korean media, it was m

CannibalRAT targets Brazil

Korea In The Crosshairs

This blog post is authored by Warren Mercer and Paul Rascagneres and with contributions from Jungsoo An.  A one year review of campaigns performed by an actor with multiple campaigns mainly linked to South Korean targets. Executive Summary This article exposes the malicious

ROKRAT Reloaded

This post was authored by Warren Mercer, Paul Rascagneres and with contributions from Jungsoo An. Executive Summary Earlier this year, Talos published 2 articles concerning South Korean threats. The first one was about the use of a malicious HWP document which dropped downloade

New KONNI Campaign References North Korean Missile Capabilities

This blog was authored by Paul Rascagneres Executive Summary We recently wrote about the KONNI Remote Access Trojan (RAT) which has been distributed by a small number of campaigns over the past 3 years. We have identified a new distribution campaign which took place on 4th Jul

Delphi Used To Score Against Palestine

This blog was authored by Paul Rascagneres and Warren Mercer with contributions from Emmanuel Tacheau, Vanja Svajcer and Martin Lee. Executive Summary Talos continuously monitors malicious emails campaigns. We identified one specific spear phishing campaign launched against tar