alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32/FloatingCloud.Banker CnC Beacon"; flow:established,to_server; http.uri; content:"/Install/Post.asp?Uid="; nocase; pcre:"/^[a-f0-9]{8}\x2D[a-f0-9]{8}\x2D[a-f0-9]{8}\x2D[a-f0-9]{8}$/Ri"; reference:url,www.securelist.com/en/blog/798/God_horses_are_floating_clouds_The_story_of_a_Chinese_banker_Trojan; classtype:command-and-control; sid:2016399; rev:4; metadata:attack_target Client_Endpoint, created_at 2013_02_08, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_04_23, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)