Infostealer

TamperedChef Malware: How Signed Productivity Apps Are Being Used to Steal Your Data A new malware campaign called TamperedChef is exploiting a trust mechanism many users rely on: digital signatures. According to reports from CyberSecurityNews on May 21, 2026, attackers are distributing signed copies of legitimate productivity applications to deliver info stealers and remote access Trojans. This undermines a basic assumption—that signed software is safe—and makes infection harder to detect for both individuals and IT teams. ...

Sneaky Malware Hides Inside Signed Productivity Apps: What to Do A new malware campaign called TamperedChef takes advantage of a simple fact: most people trust apps with a valid digital signature. The attackers sign malicious installers using stolen or forged certificates, making them look like legitimate productivity tools—Microsoft Teams, Slack, or Zoom. Once installed, the software drops infostealers and remote access trojans (RATs) instead of the promised app. ...