Versions (3)
Version DetailsCurrent
Rev: 1 • May 6, 2024, 12:00 PMET MALWARE APT42/TA453 Related CnC Domain in DNS Lookup (s20 .site)
alert dns $HOME_NET any -> any any (msg:"ET MALWARE APT42/TA453 Related CnC Domain in DNS Lookup (s20 .site)"; dns.query; bsize:8; content:"s20.site"; nocase; reference:url,cloud.google.com/blog/topics/threat-intelligence/untangling-iran-apt42-operations; classtype:misc-activity; sid:2052417; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_05_06, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_05_06;)
May 6, 2024, 12:00 PM
May 6, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 11, 2025, 10:35 PM
rules/emerging-malware.rules