Pierluigi Paganini
May 19, 2026
Microsoft disrupted Fox Tempest, a malware-signing-as-a-service (MSaaS) that allowed attackers to sign malware with fake trusted certificates. Microsoft said it disrupted a cybercrime operation run by a threat actor named Fox Tempest, which helped threat actors sign malware with short-lived certificates to make malicious software appear legitimate. The service abused Microsoft Artifact Signing and supported […]
Pierluigi Paganini
November 04, 2015
Security Experts at InfoArmor discovered GovRAT, a malware-signing-as-a-service platform that is offered to APT groups in the underground. In the past, I have explained why digital certificates are so attractive for crooks and intelligence agencies, one of the most interesting uses is the signature of malware code in order to fool antivirus. Naturally, digital certificates […]
