alert udp $HOME_NET any -> any 53 (msg:"ET DELETED ABUSE.CH Ransomware Domain Detected (TorrentLocker C2)"; content:"|01 00 00 01 00 00 00 00 00 00|"; depth:10; offset:2; content:"|0a|velodrivve|03|biz|00|"; fast_pattern; distance:0; content:"|00 01 00 01|"; within:4; pcre:"/[a-z]{4,10}\x08velodrivve\x03biz\x00/"; reference:url,ransomwaretracker.abuse.ch; classtype:command-and-control; sid:2022703; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_04_05, deployment Perimeter, signature_severity Major, tag Ransomware, updated_at 2020_08_20, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)