ET ADWARE_PUP W32/PicColor Adware CnC Beacon

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"?d=";
content:"&format=json"; endswith; fast_pattern;
http.header_names;
content:!"Accept-";
content:!"Referer";
Raw source ET ADWARE_PUP W32/PicColor Adware CnC Beacon · 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 ADWARE_PUP W32/PicColor Adware CnC Beacon";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"?d=";
    content:"&format=json"; endswith; fast_pattern;
    http.header_names;
    content:!"Accept-";
    content:!"Referer";
    reference:md5,6b173406ffccaa6d0287b795f8de2073;
    classtype:pup-activity;
    sid:2020948; rev:6;
    metadata:attack_target Client_Endpoint, created_at 2015_04_20, deployment Perimeter, signature_severity Minor, tag c2, updated_at 2020_09_17, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)

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