ET MALWARE Trojan-Dropper.MSIL CnC Traffic - GET

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/Vv/"; fast_pattern; startswith;
pcre:"/\.(dll|exe|zip|json)$/i";
http.header_names;
content:!"Referer";
content:!"User-Agent";
Raw source ET MALWARE Trojan-Dropper.MSIL CnC Traffic - GET · Suricata
Esc
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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Trojan-Dropper.MSIL CnC Traffic - GET";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/Vv/"; fast_pattern; startswith;
    pcre:"/\.(dll|exe|zip|json)$/i";
    http.header_names;
    content:!"Referer";
    content:!"User-Agent";
    reference:md5,2a93655114ec83db8d38aea680e39453;
    reference:md5,f7744662b78e045946678b3aab34f5b5;
    classtype:trojan-activity;
    sid:2034340; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_11_03, deployment Perimeter, confidence High, signature_severity Major, tag c2, updated_at 2021_11_03;
)

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