ET MALWARE Win32/TrojanDownloader.Agent.GEM CnC Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".php";
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
http.request_body;
content:"uid="; startswith;
content:"&avtype="; distance:0;
content:"&majorv="; fast_pattern;
content:"&minorv=";
Raw source ET MALWARE Win32/TrojanDownloader.Agent.GEM CnC 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/TrojanDownloader.Agent.GEM CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php";
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    http.request_body;
    content:"uid="; startswith;
    content:"&avtype="; distance:0;
    content:"&majorv="; fast_pattern;
    content:"&minorv=";
    reference:url,twitter.com/jaydinbas/status/1506987283630768138;
    reference:md5,ecd47e596048ad1af9973a21af303465;
    classtype:command-and-control;
    sid:2035592; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_03_24, deployment Perimeter, malware_family Win32_TrojanDownloader_Agent_GEM, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_24;
)

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