ET MALWARE Poweliks Clickfraud CnC M4

Query · suricata

flow:to_server,established;
http.method;
content:"GET";
http.uri;
content:"click?sid="; fast_pattern;
content:"&cid="; distance:0;
pcre:"/\?sid=[a-f0-9]{40}&cid=[0-9]$/";
http.header_names;
content:"Referer|0d 0a|";
Raw source ET MALWARE Poweliks Clickfraud CnC M4 · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Poweliks Clickfraud CnC M4";
    flow:to_server,established;
    http.method;
    content:"GET";
    http.uri;
    content:"click?sid="; fast_pattern;
    content:"&cid="; distance:0;
    pcre:"/\?sid=[a-f0-9]{40}&cid=[0-9]$/";
    http.header_names;
    content:"Referer|0d 0a|";
    reference:url,www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/evolution-of-poweliks.pdf;
    reference:md5,e13234077f513208238203108df30ff4;
    classtype:command-and-control;
    sid:2021251; rev:4;
    metadata:created_at 2015_06_11, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_06_16;
)

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