ET EXPLOIT Possible dlink-DSL2640B DNS Change Attempt

Query · suricata

flow:to_server,established;
http.method;
content:"GET";
http.uri;
content:"/ddnsmngr.cmd?action=apply"; fast_pattern;
content:"dnsPrimary=";
content:"&dnsSecondary=";
content:"&dnsDynamic=";
content:"&dnsRefresh=";
Raw source ET EXPLOIT Possible dlink-DSL2640B DNS Change Attempt · 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 any (
    msg:"ET EXPLOIT Possible dlink-DSL2640B DNS Change Attempt";
    flow:to_server,established;
    http.method;
    content:"GET";
    http.uri;
    content:"/ddnsmngr.cmd?action=apply"; fast_pattern;
    content:"dnsPrimary=";
    content:"&dnsSecondary=";
    content:"&dnsDynamic=";
    content:"&dnsRefresh=";
    reference:url,packetstormsecurity.com/files/130418/dlink-DSL2640B.txt;
    classtype:attempted-user;
    sid:2020485; rev:4;
    metadata:created_at 2015_02_19, confidence Medium, signature_severity Major, updated_at 2020_09_29;
)

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