alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32/TRCrypt.ULPM Downloader CnC Beacon"; flow:established,to_server; http.uri; content:".aspx?id="; content:"&macaddress="; content:"&pcname="; content:"&username="; content:"&osversion="; content:"&versaoatual="; fast_pattern; content:"&winkey="; reference:md5,3b4f77eefd208f699e6a540878e753a8; classtype:command-and-control; sid:2019947; rev:3; metadata:attack_target Client_Endpoint, created_at 2014_12_16, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_05_14, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)