alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/TrojanProxy.JpiProx.B CnC Beacon 2"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/sync"; depth:5; content:"ext="; content:"&pid="; content:"&country="; content:"&regd="; fast_pattern; http.header_names; content:!"Referer|0d 0a|"; classtype:command-and-control; sid:2020738; rev:4; metadata:attack_target Client_Endpoint, created_at 2015_03_25, deployment Perimeter, malware_family Win32_TrojanProxy_JpiProx_B, signature_severity Major, tag c2, updated_at 2020_09_29, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)