Versions (3)
Version DetailsCurrent
Rev: 1 • Dec 30, 2022, 12:00 PMET MALWARE ViperSoftX CnC Domain in DNS Lookup (fairu-cdn .com)
alert dns $HOME_NET any -> any any (msg:"ET MALWARE ViperSoftX CnC Domain in DNS Lookup (fairu-cdn .com)"; dns.query; dotprefix; content:".fairu-cdn.com"; nocase; endswith; reference:url,chris.partridge.tech/2022/evolution-of-vipersoftx-dga/; classtype:domain-c2; sid:2043139; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_12_30, deployment Perimeter, malware_family ViperSoftX, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_30;)
Dec 30, 2022, 12:00 PM
Dec 30, 2022, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 27, 2025, 9:35 PM
rules/emerging-malware.rules