Versions (3)
Version DetailsCurrent
Rev: 1 • Sep 1, 2016, 12:00 PMET MALWARE Locky Ransomware Renaming File via SMB
alert tcp $HOME_NET any -> $EXTERNAL_NET [445,139] (msg:"ET MALWARE Locky Ransomware Renaming File via SMB"; flow:to_server,established; content:"|FE|SMB"; offset:4; depth:4; content:"|11 00|"; distance:8; within:2; content:"|00|.|00|z|00|e|00|p|00|t|00|o|00|"; nocase; distance:0; fast_pattern; classtype:trojan-activity; sid:2023147; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_09_01, deployment Perimeter, malware_family Ransomware, confidence High, signature_severity Major, tag Ransomware, updated_at 2019_07_26, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)
Sep 1, 2016, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules