ET MALWARE Trojan.MyDNS DNSChanger - HTTP POST

Query · suricata

flow:established,to_server;
content:"|0d 0a 0d 0a|r="; fast_pattern;
http.method;
content:"POST"; nocase;
http.header;
content:"|0d 0a|Cache-Control|3a 20|no-cache|0d 0a|";
http.request_body;
content:"r="; depth:2; nocase;
content:"&f="; nocase; distance:0;
content:"&p="; nocase; distance:0;
content:"&u="; nocase; distance:0;
content:"&i="; nocase; distance:0;
content:"&g="; nocase; distance:0;
Raw source ET MALWARE Trojan.MyDNS DNSChanger - HTTP POST · 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 Trojan.MyDNS DNSChanger - HTTP POST";
    flow:established,to_server;
    content:"|0d 0a 0d 0a|r="; fast_pattern;
    http.method;
    content:"POST"; nocase;
    http.header;
    content:"|0d 0a|Cache-Control|3a 20|no-cache|0d 0a|";
    http.request_body;
    content:"r="; depth:2; nocase;
    content:"&f="; nocase; distance:0;
    content:"&p="; nocase; distance:0;
    content:"&u="; nocase; distance:0;
    content:"&i="; nocase; distance:0;
    content:"&g="; nocase; distance:0;
    classtype:trojan-activity;
    sid:2009813; rev:6;
    metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_28;
)

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