alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32/Pgift.Backdoor APT CnC Beacon"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/pgift.asp"; fast_pattern; http.user_agent; bsize:25; content:"Mozilla/4.0 (compatible|3b|)"; http.header_names; to_lowercase; content:!"|0d 0a|accept"; content:!"|0d 0a|referer|0d 0a|"; reference:url,www.fireeye.com/blog/technical/threat-intelligence/2014/07/spy-of-the-tiger.html; classtype:targeted-activity; sid:2018869; rev:8; metadata:attack_target Client_Endpoint, created_at 2014_08_01, deployment Perimeter, signature_severity Major, tag c2, updated_at 2024_04_29, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)