Rule History

alert http any any -> any any (msg:"ET MALWARE HTTP Request for Possible ELF/LiLocked Ransomware Note"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"README.lilocked"; fast_pattern; endswith; reference:url,www.zdnet.com/article/thousands-of-servers-infected-with-new-lilocked-lilu-ransomware/; classtype:trojan-activity; sid:2027967; rev:4; metadata:affected_product Linux, attack_target Client_Endpoint, created_at 2019_09_09, deployment Perimeter, malware_family LiLocked, confidence Medium, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_17, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)