alert dns $HOME_NET any -> any any (msg:"ET MALWARE Ransomware Locky .onion Payment Domain (5n7y4yihirccftc5)"; dns.query; content:"5n7y4yihirccftc5"; startswith; fast_pattern; nocase; reference:md5,d7cb55e90dee7777fe7b77b079d51513; classtype:trojan-activity; sid:2023084; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_08_23, deployment Perimeter, malware_family Ransomware, malware_family Locky, confidence High, signature_severity Major, tag DNS_Onion_Query, tag Ransomware, updated_at 2024_04_13, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)