alert dns $HOME_NET any -> any any (msg:"ET MALWARE Ransomware/Cerber Onion Domain Lookup"; dns.query; content:"ffoqr3ug7m726zou"; depth:16; fast_pattern; nocase; reference:url,ransomwaretracker.abuse.ch; classtype:trojan-activity; sid:2023425; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_10_26, deployment Perimeter, malware_family Ransomware_Cerber, confidence High, signature_severity Major, tag DNS_Onion_Query, tag Ransomware, updated_at 2020_09_01, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)