A developer recently discovered a Windows trojan, Trojan:Win64/Lazy.PGPK!MTB, within a skill package on their Model Context Protocol (MCP) marketplace. The malware was disguised as a legitimate GitHub repository through typosquatting, leading to the download of a malicious zip file containing an executable and obfuscated Lua bytecode. In response, the developer implemented an eight-layer defense system to scan skill packages more thoroughly, including recursive zip extraction, binary and malware detection, YARA-equivalent rules for specific malware families, a Web Application Firewall, a honeypot, threat intelligence feeds, and an auto-quarantine mechanism for identified threats. AI
IMPACT Highlights the critical need for deep package inspection in code marketplaces to prevent malware propagation.
RANK_REASON Developer implements a security system in response to a specific incident.
- abuse.ch
- GitHub
- JuanquiFortuny/prospector-mcp-email-finder
- Lua
- MCP
- Windows
- MITRE ATT&CK
- prospector-mcp-email-finder
- Trojan:Win64/Lazy.PGPK!MTB
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