ET MALWARE Skeleton Key Filename in SMB2 Traffic

Query · suricata

flow:established,to_server;
content:"|FE|SMB|40|"; offset:4; depth:5;
content:"|0e 00|"; distance:0;
content:"o|00|l|00|e|00|.|00|d|00|l|00|l"; distance:8; within:13;
Raw source ET MALWARE Skeleton Key Filename in SMB2 Traffic · 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 -> $HOME_NET [139,445] (
    msg:"ET MALWARE Skeleton Key Filename in SMB2 Traffic";
    flow:established,to_server;
    content:"|FE|SMB|40|"; offset:4; depth:5;
    content:"|0e 00|"; distance:0;
    content:"o|00|l|00|e|00|.|00|d|00|l|00|l"; distance:8; within:13;
    reference:url,www.secureworks.com/cyber-threat-intelligence/threats/skeleton-key-malware-analysis;
    classtype:trojan-activity;
    sid:2020384; rev:2;
    metadata:created_at 2015_02_07, signature_severity Major, updated_at 2019_07_26;
)

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