ET MALWARE Win32/Trapwot FakeAV Checkin

Query · suricata

flow:established,to_server;
http.uri;
content:"v=";
content:"a=";
content:"u=";
content:"i=0"; fast_pattern;
pcre:"/^\/(?:[a-z]+\/)?[a-z_]+\?[a-z]=/";
http.request_body;
pcre:"/^[\x20-\x7e\r\n]{0,20}[^\x20-\x7e\r\n]/";
http.header_names;
content:!"Accept";
content:!"Referer|0d 0a|";
Raw source ET MALWARE Win32/Trapwot FakeAV Checkin · 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 Win32/Trapwot FakeAV Checkin";
    flow:established,to_server;
    http.uri;
    content:"v=";
    content:"a=";
    content:"u=";
    content:"i=0"; fast_pattern;
    pcre:"/^\/(?:[a-z]+\/)?[a-z_]+\?[a-z]=/";
    http.request_body;
    pcre:"/^[\x20-\x7e\r\n]{0,20}[^\x20-\x7e\r\n]/";
    http.header_names;
    content:!"Accept";
    content:!"Referer|0d 0a|";
    reference:md5,baf71ace207afd3f330c4aba3784e074;
    classtype:command-and-control;
    sid:2020646; rev:6;
    metadata:created_at 2015_03_09, malware_family Win32_Trapwot, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_29;
)

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