HTTP Status Codes Command This Malware How to Control Hacked Systems

A new version of COMpfun remote access trojan RAT has been discovered in the wild that uses HTTP status codes to control compromised systems targeted in a recent campaign against diplomatic entities in Europe. The cyberespionage malware—traced to Turla APT with "medium-to-low level of confidence"...

HTTP Status Codes Command This Malware How to Control Hacked Systems

A new version of COMpfun remote access trojan RAT has been discovered in the wild that uses HTTP status codes to control compromised systems targeted in a recent campaign against diplomatic entities in Europe. The cyberespionage malware—traced to Turla APT with "medium-to-low level of confidence"...

COMpfun authors spoof visa application with HTTP status-based Trojan

You may remember that in autumn 2019 we published a story about how a COMpfun successor known as Reductor infected files on the fly to compromise TLS traffic. If you're wondering whether the actor behind the malware is still developing new features, the answer is yes. Later in November 2019 our...

New Reductor Nation-State Malware Compromises TLS

Kaspersky has a detailed blog post about a new piece of sophisticated malware that it's calling Reductor. The malware is able to compromise TLS traffic by infecting the computer with hacked TLS engine substituted on the fly, "marking" infected TLS handshakes by compromising the underlining...

COMpfun successor Reductor infects files on the fly to compromise TLS traffic

In April 2019, we discovered new malware that compromises encrypted web communications in an impressive way. Analysis of the malware allowed us to confirm that the operators have some control over the target's network channel and could replace legitimate installers with infected ones on the fly...