Rule History

alert dns any any -> $HOME_NET any (msg:"ET ATTACK_RESPONSE PowerShell String Base64 Encoded Invoke-RestMethod (2b2tlLVJlc3RNZX) in DNS TXT Reponse"; content:!"v=DKIM"; content:"|00 00 10 00 01 c0 0c 00 10 00 01|"; content:"2b2tlLVJlc3RNZX"; distance:0; fast_pattern; reference:url,github.com/no0be/DNSlivery; classtype:bad-unknown; sid:2043163; rev:3; metadata:attack_target Client_Endpoint, created_at 2023_01_03, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_12_12;)