ET MALWARE Maldoc Retrieving Payload 2021-07-06

Query · suricata

flow:established,to_server;
http.uri;
pcre:"/\.(?:exe|dll)$/";
http.user_agent;
content:"charris"; fast_pattern; startswith;
http.header_names;
content:!"|0d 0a|Referer|0d 0a|";
content:"|0d 0a|UA-CPU|0d 0a|";
Raw source ET MALWARE Maldoc Retrieving Payload 2021-07-06 · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Maldoc Retrieving Payload 2021-07-06";
    flow:established,to_server;
    http.uri;
    pcre:"/\.(?:exe|dll)$/";
    http.user_agent;
    content:"charris"; fast_pattern; startswith;
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    content:"|0d 0a|UA-CPU|0d 0a|";
    reference:md5,fda11c3ab0a8f8fb190456842974583c;
    classtype:trojan-activity;
    sid:2033253; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_07_06, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_12;
)

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