Rule History

SID: 2044662 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 1 • Mar 16, 2023, 12:00 PM

Message:

ET MALWARE Winter Vivern APT Aperetif CnC Checkin

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Winter Vivern APT Aperetif CnC Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".php?idU="; fast_pattern; reference:url,www.sentinelone.com/labs/winter-vivern-uncovering-a-wave-of-global-espionage/; classtype:trojan-activity; sid:2044662; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_03_16, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_16;)

Created:

Mar 16, 2023, 12:00 PM

Updated:

Mar 16, 2023, 12:00 PM

DB Created:

Mar 16, 2023, 10:00 PM

DB Updated:

Aug 25, 2025, 9:35 PM

Filename:

rules/emerging-malware.rules