ET MALWARE STARSYPOUND Client Checkin

Query · suricata

flow:established,to_server;
content:"*(SY)# "; depth:7;
Raw source ET MALWARE STARSYPOUND Client 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 -> $EXTERNAL_NET 443 (
    msg:"ET MALWARE STARSYPOUND Client Checkin";
    flow:established,to_server;
    content:"*(SY)# "; depth:7;
    reference:md5,8442ae37b91f279a9f06de4c60b286a3;
    reference:url,www.mandiant.com/apt1;
    classtype:command-and-control;
    sid:2016443; rev:2;
    metadata:created_at 2013_02_20, signature_severity Major, updated_at 2019_07_26;
)

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