Fake GitHub Repositories Deliver Lua-Based Malware to Developers

Security researchers reported a FakeGit campaign using counterfeit GitHub repositories to trick developers into downloading trojanized tools, with Magento developers among the primary targets. The repositories copied code, commit history, and project structure from legitimate open-source deployment, Docker, and configuration projects so that authentic contributor names appeared alongside the fake repos, increasing credibility. Victims were directed to download ZIP archives that contained a LuaJIT runtime, a batch launcher, and obfuscated Lua payloads that installed Windows malware, including a remote access trojan and keylogger; Sansec also published malicious GitHub accounts, repository names, and SHA1 hashes tied to the operation.

A related lure expanded the campaign beyond Magento by impersonating a security automation project named n8n-CyberSecurity-Workflows, targeting red team, blue team, and AppSec users with GitHub stars, an MIT license, and a README download button. Analysis of the downloaded archive found a Lua-based trojan loader using DLL sideloading through a renamed Lua 5.1 interpreter to execute obfuscated bytecode, with VirusTotal detections labeling the payload as trojan.fakegit/runner. The malware was also observed contacting a Polygon blockchain RPC endpoint, behavior researchers said aligns with crypto-clipper or wallet-drainer activity, indicating the FakeGit operation is using trusted developer platforms to distribute credential theft and broader financially motivated malware.