alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32.TreasureHunter Checkin"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/gate.php"; content:"request=true"; fast_pattern; http.request_body; content:"request="; startswith; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; content:!"|0d 0a|accept-"; reference:md5,070e9a317ee53ac3814eb86bc7d5bf49; reference:url,isc.sans.edu/forums/diary/How+Malware+Generates+Mutex+Names+to+Evade+Detection/19429/; classtype:command-and-control; sid:2022681; rev:5; metadata:created_at 2016_03_29, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_05_01;)