ET MALWARE Win32/Cutwail.BE Checkin 2

Query · suricata

flow:established,from_client;
dsize:32;
content:"|00 00 00 00 FF FF FF FF 3F 57|"; depth:10;
content:"|FE FF FF FF FF FF FF FF FF FF FF|"; distance:3; within:11;
threshold:type limit, track by_src, seconds 60, count 1;
Raw source ET MALWARE Win32/Cutwail.BE Checkin 2 · Suricata
Esc
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 any (
    msg:"ET MALWARE Win32/Cutwail.BE Checkin 2";
    flow:established,from_client;
    dsize:32;
    content:"|00 00 00 00 FF FF FF FF 3F 57|"; depth:10;
    content:"|FE FF FF FF FF FF FF FF FF FF FF|"; distance:3; within:11;
    threshold:type limit, track by_src, seconds 60, count 1;
    reference:md5,c6d256edcc8879717539f348706061f2;
    reference:md5,8f17e2a9e7c6cbec772ae56dfffb13cb;
    classtype:command-and-control;
    sid:2014272; rev:3;
    metadata:created_at 2012_02_22, malware_family Win32_Cutwail_BE, confidence Medium, signature_severity Major, updated_at 2019_07_26;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.