VOID#GEIST malware campaign delivers XWorm, AsyncRAT, and Xeno RAT using batch scripts, Python loaders, and explorer.exe ...

North Korean hacking group APT37 was seen deploying new implants, backdoors, and other tools in attacks targeting air-gapped ...

Researchers have discovered a new ransomware variant that they say has significantly different behavior and characteristics than most other ransomware types. The ransomware, called PwndLocker, was ...

IntroductionThreat actors often take advantage of major global events to fuel interest in their malicious activities. Zscaler ThreatLabz is diligently tracking a surge in cybercriminal activity that ...

IntroductionIn December 2025, Zscaler ThreatLabz discovered a campaign linked to APT37 (also known as ScarCruft, Ruby Sleet, and Velvet Chollima), which is a DPRK-backed threat group. In this campaign ...