Versions (4)
Version DetailsCurrent
Rev: 1 • Feb 1, 2021, 12:00 PMET MALWARE NIGHTSCOUT Poison Ivy Variant CnC Domain in DNS Lookup (cdn. cloudistcdn .com)
alert dns $HOME_NET any -> any any (msg:"ET MALWARE NIGHTSCOUT Poison Ivy Variant CnC Domain in DNS Lookup (cdn. cloudistcdn .com)"; dns.query; content:"cdn.cloudistcdn.com"; nocase; bsize:19; reference:url,www.welivesecurity.com/2021/02/01/operation-nightscout-supply-chain-attack-online-gaming-asia/; classtype:domain-c2; sid:2031595; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_02_01, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_02_01;)
Feb 1, 2021, 12:00 PM
Feb 1, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 15, 2025, 9:36 PM
rules/emerging-malware.rules