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For more than a year, a Russian-speaking threat actor targeted human resource (HR) departments with malware that delivers a new EDR killer named BlackSanta.

Iran-linked Dust Specter targeted Iraqi officials using fake ministry lures and new malware families uncovered by Zscaler.

Those aren't toys. Malware used in a sophisticated spear-phishing and infostealing campaign by Russian bad actors includes a component dubbed BlackSanta that can shut down antivirus and EDR ...

Russian hackers target HR departments with BlackSanta malware Infection chain uses phishing emails and malicious ISO files BlackSanta disables EDR tools to enable deeper compromise Russian hackers ...

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

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

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.

Zscaler ThreatLabz assessed with medium to high confidence that an Iranian adversary targeted Iraq’s Ministry of Foreign Affairs in a new cyber-attack ...

The security researchers from Zscaler ThreatLabz have also discovered five new tools deployed by the North Korean hacking ...