alert http any any -> $HOME_NET any (
msg:"ET EXPLOIT D-Link DSL-2740R Remote DNS Change Attempt";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/Forms/dns_1?"; fast_pattern;
content:"Enable_DNSFollowing=1"; distance:0;
content:"dnsPrimary="; distance:0;
reference:url,www.exploit-db.com/exploits/35917;
classtype:attempted-admin;
sid:2023466; rev:8;
metadata:created_at 2015_01_29, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_12_03;
)