alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Peerblight ZinFoq Backdoor CnC Beacon"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"|2f|en|2f|about|3f|source|3d|redhat|26|id|3d|v1|2e|"; fast_pattern; http.accept_enc; bsize:4; content:"gzip"; http.request_body; content:"7b2269707322"; startswith; reference:url,www.huntress.com/blog/peerblight-linux-backdoor-exploits-react2shell; classtype:trojan-activity; sid:2066250; rev:1; metadata:affected_product Linux, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2025_12_10, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag RAT, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_12_10; target:src_ip;)