ET EXPLOIT Unknown Vulnerability Exploit Attempt (Possible Mirai Activity)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/cgi-bin/"; startswith;
http.request_body;
content:"key=|27 3b 60|"; startswith; fast_pattern;
content:"wget"; distance:0;
Raw source ET EXPLOIT Unknown Vulnerability Exploit Attempt (Possible Mirai Activity) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET EXPLOIT Unknown Vulnerability Exploit Attempt (Possible Mirai Activity)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/cgi-bin/"; startswith;
    http.request_body;
    content:"key=|27 3b 60|"; startswith; fast_pattern;
    content:"wget"; distance:0;
    reference:url,unit42.paloaltonetworks.com/mirai-variant-iot-vulnerabilities/;
    classtype:attempted-admin;
    sid:2033273; rev:1;
    metadata:attack_target Server, created_at 2021_07_07, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag Exploit, updated_at 2021_07_07, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
)

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