alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP DealPly Adware CnC Beacon 4"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/?v="; depth:4; fast_pattern; content:"&pcrc="; pcre:"/^\/\?v=[\d.]+&pcrc=\d+$/"; http.header_names; content:!"Referer|0d 0a|"; content:!"Accept-"; reference:md5,038da581f99c88a4ee6700de440a54ca; classtype:pup-activity; sid:2022354; rev:4; metadata:attack_target Client_Endpoint, created_at 2016_01_13, deployment Perimeter, signature_severity Minor, tag c2, updated_at 2020_08_31, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)