Versions (4)
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Rev: 2 • Jun 29, 2021, 12:00 PMET MALWARE Ransomware Decryptor Domain in DNS Query (decoder .re)
alert dns $HOME_NET any -> any any (msg:"ET MALWARE Ransomware Decryptor Domain in DNS Query (decoder .re)"; dns.query; content:"decoder.re"; nocase; bsize:10; classtype:trojan-activity; sid:2033202; rev:2; metadata:attack_target Client_Endpoint, created_at 2021_06_29, deployment Perimeter, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_19, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact;)
Jun 29, 2021, 12:00 PM
Apr 19, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 11, 2025, 9:34 PM
rules/emerging-malware.rules