ET ADWARE_PUP Potentially Unwanted Application AirInstaller CnC Beacon

Query · suricata

flow:to_server,established;
http.method;
content:"GET";
http.uri;
content:"/log/?"; fast_pattern;
content:"="; distance:1; within:1;
content:"&d="; distance:0;
content:"&o=";
content:"&r=";
content:"&s=";
content:"&t=";
pcre:"/^\/(?:[^\x2f]+\/)*log\/\?[bc]=/";
http.header_names;
content:!"Accept";
content:!"Referer|0d 0a|";
Raw source ET ADWARE_PUP Potentially Unwanted Application AirInstaller 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 Potentially Unwanted Application AirInstaller CnC Beacon";
    flow:to_server,established;
    http.method;
    content:"GET";
    http.uri;
    content:"/log/?"; fast_pattern;
    content:"="; distance:1; within:1;
    content:"&d="; distance:0;
    content:"&o=";
    content:"&r=";
    content:"&s=";
    content:"&t=";
    pcre:"/^\/(?:[^\x2f]+\/)*log\/\?[bc]=/";
    http.header_names;
    content:!"Accept";
    content:!"Referer|0d 0a|";
    reference:md5,e89ec5e8f89ee6ae4a6b65157c886614;
    classtype:pup-activity;
    sid:2020701; rev:4;
    metadata:attack_target Client_Endpoint, created_at 2015_03_17, deployment Perimeter, signature_severity Minor, tag c2, updated_at 2020_08_31, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)

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