ET MALWARE Maldoc Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/portals/office/log.php?Data="; startswith; fast_pattern;
http.header_names;
content:!"Referer";
http.user_agent;
content:"Microsoft Internet Explorer"; bsize:27;
Raw source ET MALWARE Maldoc Activity (GET) · 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 MALWARE Maldoc Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/portals/office/log.php?Data="; startswith; fast_pattern;
    http.header_names;
    content:!"Referer";
    http.user_agent;
    content:"Microsoft Internet Explorer"; bsize:27;
    reference:url,twitter.com/ShadowChasing1/status/1485514043679199233;
    reference:md5,9521e4138fd0e6996072778cd4f1f06a;
    reference:md5,2ee3ae478e7d1f2f473b191b1be5e14f;
    classtype:trojan-activity;
    sid:2034969; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_01_25, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_01_25;
)

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