Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE CBReplay.P Ransomware"; flow:established,to_server; urilen:33; http.uri; pcre:"/^\/[a-f0-9]{32}$/"; http.user_agent; content:"MSIE 9.0|3b|"; fast_pattern; http.header_names; content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a 0d 0a|"; startswith; http.host; pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/"; classtype:trojan-activity; sid:2017269; rev:5; metadata:attack_target Client_Endpoint, created_at 2013_08_01, deployment Perimeter, performance_impact Moderate, signature_severity Major, tag Ransomware, updated_at 2024_04_08, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)