alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32/Snojan.BNQKZQH CnC Activity"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php?action="; content:"&id="; distance:0; isdataat:!18,relative; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; http.request_body; content:"eyJwYXNzIjoi"; startswith; fast_pattern; reference:md5,83d2fa0e16b39ee2280dea9d8f89aa48; classtype:command-and-control; sid:2034537; rev:3; metadata:attack_target Client_Endpoint, created_at 2021_11_23, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_25;)