ET ADWARE_PUP Known Malicious User-Agent (x) Win32/Tracur.A or OneStep Adware Related

Query · suricata

flow:to_server,established;
threshold:type limit, count 2, track by_src, seconds 300;
http.user_agent;
content:"x"; depth:1; endswith;
http.host;
content:!"update.aida64.com";
Raw source ET ADWARE_PUP Known Malicious User-Agent (x) Win32/Tracur.A or OneStep Adware Related · 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 Known Malicious User-Agent (x) Win32/Tracur.A or OneStep Adware Related";
    flow:to_server,established;
    threshold:type limit, count 2, track by_src, seconds 300;
    http.user_agent;
    content:"x"; depth:1; endswith;
    http.host;
    content:!"update.aida64.com";
    reference:url,www.symantec.com/security_response/writeup.jsp?docid=2008-112613-5052-99&tabid=2;
    classtype:pup-activity;
    sid:2013017; rev:9;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2011_06_13, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_12;
)

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