Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Shai-Hulud NPM Malware Creating Github Repository"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/repos"; endswith; http.host; content:"github"; http.request_body; content:"|22|name|22|"; content:"|22|description|22|"; content:"Shai-Hulud Repository."; within:30; fast_pattern; content:"|22|private|22|"; content:"|22|has_issues|22|"; classtype:command-and-control; sid:2064735; rev:1; metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2025_09_16, deployment Perimeter, malware_family Shai_Hulud, performance_impact Low, confidence Medium, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_09_16; target:dest_ip;)