ET MALWARE Waledac Beacon Traffic Detected

Query · suricata

flow:to_server,established;
http.method;
content:"POST"; depth:4;
http.user_agent;
content:"Mozilla"; bsize:7;
http.request_body;
content:"a="; nocase;
http.referer;
content:"Mozilla"; nocase; bsize:7;
Raw source ET MALWARE Waledac Beacon Traffic Detected · 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 Waledac Beacon Traffic Detected";
    flow:to_server,established;
    http.method;
    content:"POST"; depth:4;
    http.user_agent;
    content:"Mozilla"; bsize:7;
    http.request_body;
    content:"a="; nocase;
    http.referer;
    content:"Mozilla"; nocase; bsize:7;
    reference:url,www.shadowserver.org/wiki/pmwiki.php?n=Calendar.20081231;
    classtype:trojan-activity;
    sid:2008958; rev:7;
    metadata:attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_09_02, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)

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