ET HUNTING Observed Malicious Filename in Outbound POST Request (Information.txt)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"Information.txt"; fast_pattern;
Raw source ET HUNTING Observed Malicious Filename in Outbound POST Request (Information.txt) · 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 http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET HUNTING Observed Malicious Filename in Outbound POST Request (Information.txt)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"Information.txt"; fast_pattern;
    reference:md5,50f2b28aba4d4cb47544bcc98980a63e;
    reference:url,asec.ahnlab.com/ko/31703;
    classtype:trojan-activity;
    sid:2035367; rev:2;
    metadata:affected_product Any, attack_target Client_Endpoint, created_at 2022_03_01, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_01;
)

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