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Fake GitHub Minecraft Mods Hijack Player Credentials in Ongoing Malware Campaign

Check Point Research warns more than 500 repositories host multi-stage stealth malware that has evaded antivirus detection.

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Overview

  • The campaign has run since March under the Stargazers Ghost Network, a probable Russian-speaking distribution-as-a-service operation on GitHub.
  • Researchers identified about 500 cloned or forked repositories and roughly 70 fake accounts that generated some 700 stars to lend credibility to malicious mods.
  • A concealed Java downloader masquerading as popular cheats fetches a Java-based stealer for Minecraft tokens before deploying a .NET infostealer named 44 CALIBER for wider data theft.
  • 44 CALIBER harvests credentials from web browsers, cryptocurrency wallets, VPN clients and messaging apps while also capturing screenshots and clipboard contents.
  • Up to 1,500 Windows devices may be infected and experts advise downloading mods only from verified community portals and using secondary accounts for testing.