Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Striked Ransomware CnC Checkin"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; endswith; http.header_names; content:"|0d 0a|Host|0d 0a|"; startswith; content:!"|0d 0a|Referer|0d 0a|"; http.user_agent; content:"python"; startswith; http.request_body; content:"crid="; startswith; content:"&dta="; fast_pattern; distance:0; reference:md5,80317e3194d8f7fd495b0bf06cae2295; classtype:command-and-control; sid:2024465; rev:3; metadata:attack_target Client_Endpoint, created_at 2017_07_13, deployment Perimeter, malware_family Win32_Striked, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_08, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)