alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE FAKBEN Ransomware"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".php?btc="; nocase; fast_pattern; content:"&wid="; nocase; distance:0; content:"|3a|TWljcm9zb2Z0IFdpbmR"; distance:0; http.header_names; to_lowercase; content:!"|0d 0a|accept"; content:!"|0d 0a|referer|0d 0a|"; content:!"|0d 0a|user-agent|0d 0a|"; reference:md5,c952a88edc0766adf819b30cd2683ac7; classtype:trojan-activity; sid:2022283; rev:3; metadata:attack_target Client_Endpoint, created_at 2015_12_18, deployment Perimeter, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_20, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)