Versions (2)
Version DetailsCurrent
Rev: 2 • Mar 16, 2023, 12:00 PMET MALWARE Wintern Vivern CnC Domain (security-ocsp .com) in DNS Lookup
alert dns $HOME_NET any -> any any (msg:"ET MALWARE Wintern Vivern CnC Domain (security-ocsp .com) in DNS Lookup"; dns.query; content:"security-ocsp.com"; nocase; bsize:17; reference:url,www.sentinelone.com/labs/winter-vivern-uncovering-a-wave-of-global-espionage/; classtype:domain-c2; sid:2044661; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_03_16, deployment Perimeter, deprecation_reason Age, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_08_21, reviewed_at 2023_08_21;)
Mar 16, 2023, 12:00 PM
Aug 21, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules