ET MALWARE MalDoc/TA427 Payload Request (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?na="; fast_pattern;
content:".gif"; endswith;
http.user_agent;
content:"curl"; startswith;
http.header_names;
content:!"Referer";
Raw source ET MALWARE MalDoc/TA427 Payload Request (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/TA427 Payload Request (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?na="; fast_pattern;
    content:".gif"; endswith;
    http.user_agent;
    content:"curl"; startswith;
    http.header_names;
    content:!"Referer";
    reference:md5,6d6c239e3484915b6897bffb44c38e7b;
    classtype:trojan-activity;
    sid:2045637; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_05_11, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_05_11;
)

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