ET MALWARE SSV Agent CnC Activity

Query · suricata

flow:established,to_server;
http.request_body;
content:"|00 00 00 01 00 00 00 01 00 00 00|"; offset:1; depth:11; fast_pattern;
pcre:"/^[A-F0-9]{32}/R";
Raw source ET MALWARE SSV Agent CnC Activity · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE SSV Agent CnC Activity";
    flow:established,to_server;
    http.request_body;
    content:"|00 00 00 01 00 00 00 01 00 00 00|"; offset:1; depth:11; fast_pattern;
    pcre:"/^[A-F0-9]{32}/R";
    reference:url,github.com/ptresearch/AttackDetection/tree/master/APT31;
    reference:md5,db1673a1e8316287cb940725bb6caa68;
    classtype:command-and-control;
    sid:2033650; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_08_03, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_03;
)

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