ObliqueRAT: New RAT hits victims' endpoints via malicious documents
By Asheer Malhotra. * Cisco Talos has observed a malware campaign that utilizes malicious Microsoft Office documents (maldocs) to spread a remote access trojan (RAT) we’re calling “ObliqueRAT.” * These maldocs use malicious macros to deliver the second stage RAT payload. *
Loda RAT Grows Up
By Chris Neal. * Over the past several months, Cisco Talos has observed a malware campaign that utilizes websites hosting a new version of Loda, a remote access trojan (RAT) written in AutoIT. * These websites also host malicious documents that begin a multi-stage infection c
Open Document format creates twist in maldoc landscape
By Warren Mercer and Paul Rascagneres. Introduction Cisco Talos recently observed attackers changing the file formats they use in an attempt to thwart common antivirus engines. This can happen across other file formats, but today, we are showing a change of approach for an acto
How Tortoiseshell created a fake veteran hiring website to host malware
By Warren Mercer and Paul Rascagneres with contributions from Jungsoo An. Introduction Cisco Talos recently discovered a threat actor attempting to take advantage of Americans who may be seeking a job, especially military veterans. The actor, previously identified by Symantec a
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
