ET MALWARE Monsoon Tinytyphon CnC Beacon GET

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/dw.php"; fast_pattern; endswith;
http.header;
content:"Accept|3a 20|*/*|0d 0a|"; depth:13;
http.header_names;
content:!"Referer|0d 0a|";
Raw source ET MALWARE Monsoon Tinytyphon CnC Beacon 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 Monsoon Tinytyphon CnC Beacon GET";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/dw.php"; fast_pattern; endswith;
    http.header;
    content:"Accept|3a 20|*/*|0d 0a|"; depth:13;
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:md5,f32c5a923393a2ae2fcd292f299b63b1;
    reference:url,blogs.forcepoint.com/security-labs/monsoon-analysis-apt-campaign;
    classtype:command-and-control;
    sid:2023049; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_08_11, deployment Perimeter, malware_family MONSOON, malware_family Tinytyphon, confidence Medium, signature_severity Major, tag c2, updated_at 2020_10_06, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)

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