ET MALWARE FAKE/ROGUE AV/Security Application Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"GET"; nocase;
http.uri;
content:"?url="; nocase;
content:"&affid="; fast_pattern; nocase;
pcre:"/\?url=[0-9]&affid=[0-9]{5}/i";
http.user_agent;
content:"Mozilla/5.0 (compatible|3b 20|MSIE 6.0|3b 20|Windows XP)"; depth:46; endswith; nocase;
Raw source ET MALWARE FAKE/ROGUE AV/Security Application 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 FAKE/ROGUE AV/Security Application Checkin";
    flow:established,to_server;
    http.method;
    content:"GET"; nocase;
    http.uri;
    content:"?url="; nocase;
    content:"&affid="; fast_pattern; nocase;
    pcre:"/\?url=[0-9]&affid=[0-9]{5}/i";
    http.user_agent;
    content:"Mozilla/5.0 (compatible|3b 20|MSIE 6.0|3b 20|Windows XP)"; depth:46; endswith; nocase;
    classtype:command-and-control;
    sid:2009554; rev:8;
    metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_13;
)

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