ET MALWARE Win32/Ramnit Checkin

Query · suricata

flow:established,to_server;
dsize:6;
content:"|00 ff|"; depth:2;
content:"|00 00|"; distance:1; within:2;
Raw source ET MALWARE Win32/Ramnit 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 [442,443,446,447,8001] (
    msg:"ET MALWARE Win32/Ramnit Checkin";
    flow:established,to_server;
    dsize:6;
    content:"|00 ff|"; depth:2;
    content:"|00 00|"; distance:1; within:2;
    reference:md5,3fc81e102825a74b27faabbcd9408993;
    reference:url,contagiodump.blogspot.com/2012/01/blackhole-ramnit-samples-and-analysis.html;
    reference:md5,5740a73856128270b37ec4afae870d12;
    classtype:command-and-control;
    sid:2018558; rev:5;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2013_06_06, deployment Perimeter, malware_family Ramnit, performance_impact Low, signature_severity Major, updated_at 2019_07_26;
)

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