StealC

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StealC malware enhanced with stealth upgrades and data theft tools

The creators of StealC, a widely-used information stealer and malware downloader, have released its second major version, bringing multiple stealth and data theft enhancements. The latest version of StealC was actually made available to cybercriminals in March 2025, but Zscaler researchers who analyzed it just published a detailed write-up. In the weeks that followed its release, several minor bug fixes…