Signed malware backed by a stolen EV certificate deployed legitimate RMM tools to gain persistent access inside enterprise ...

North Korea-linked ScarCruft’s Ruby Jumper uses Zoho WorkDrive C2 and USB malware to breach air-gapped systems for ...

These four simple PowerShell scripts fix common Windows headaches and save time with quick, copy-and-paste commands.

IntroductionIn January 2026, Zscaler ThreatLabz observed activity by a suspected Iran-nexus threat actor targeting government officials in Iraq. ThreatLabz discovered previously undocumented malware ...

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 ...

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

PowerShell modules allow you to combine multiple scripts to simplify code management. Learn step-by-step instructions for creating and using these modules.

Zscaler ThreatLabz assessed with medium to high confidence that an Iranian adversary targeted Iraq’s Ministry of Foreign ...

North Korean hackers are deploying newly uncovered tools to move data between internet-connected and air-gapped systems, spread via removable drives, and conduct covert surveillance.

China linked APT41 hackers deploy Silver Dragon campaign targeting organizations with malware and espionage tactics.

A compromised Chrome extension with 7,000 users was updated to deploy malware, strip security headers, and steal cryptocurrency wallet seed phrases.

Microsoft rolls out Windows 11 Insider builds featuring a built-in network speed test, Emoji 16.0, shared audio controls, and stronger batch file security.