ET MALWARE Win32/Termite Agent Implant CnC Checkin

Query · suricata

flow:established,to_server;
dsize:<600;
content:"|00 00 00|"; offset:1; depth:3;
content:"|00 00 00 00 00 00 00 ff 01|"; distance:1; within:9;
content:"|ff ff ff ff ff ff ff ff|"; distance:0;
content:"|00 00 00|This|20|Client|20|Node|00 00 00|"; distance:0; fast_pattern;
Raw source ET MALWARE Win32/Termite Agent Implant CnC Checkin · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $HOME_NET any -> any any (
    msg:"ET MALWARE Win32/Termite Agent Implant CnC Checkin";
    flow:established,to_server;
    dsize:<600;
    content:"|00 00 00|"; offset:1; depth:3;
    content:"|00 00 00 00 00 00 00 ff 01|"; distance:1; within:9;
    content:"|ff ff ff ff ff ff ff ff|"; distance:0;
    content:"|00 00 00|This|20|Client|20|Node|00 00 00|"; distance:0; fast_pattern;
    reference:md5,2820653437d5935d94fcb0c997d6f13c;
    classtype:command-and-control;
    sid:2027083; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2019_03_14, deployment Perimeter, deployment Internal, malware_family Termite, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2019_07_26;
)

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