ET MALWARE Possible OceanLotus CnC Heartbeat

Query · suricata

flow:to_client,established;
dsize:14;
content:"|75 7a 76 7e 1a 1b 1b 1b 1b 1b 11 1b 1b 1b|"; fast_pattern;
threshold:type limit, count 1, track by_src, seconds 60;
Raw source ET MALWARE Possible OceanLotus CnC Heartbeat · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $EXTERNAL_NET 443 -> $HOME_NET any (
    msg:"ET MALWARE Possible OceanLotus CnC Heartbeat";
    flow:to_client,established;
    dsize:14;
    content:"|75 7a 76 7e 1a 1b 1b 1b 1b 1b 11 1b 1b 1b|"; fast_pattern;
    threshold:type limit, count 1, track by_src, seconds 60;
    reference:url,www.alienvault.com/open-threat-exchange/blog/oceanlotus-for-os-x-an-application-bundle-pretending-to-be-an-adobe-flash-update;
    classtype:command-and-control;
    sid:2022540; rev:1;
    metadata:created_at 2016_02_18, confidence Medium, signature_severity Major, updated_at 2019_07_26;
)

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