alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT Generic ADSL Router DNS Change GET Request"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"dnsPrimary="; fast_pattern; content:"&dnsSecondary="; content:"&dnsDynamic="; content:"&dnsRefresh="; reference:url,packetstormsecurity.com/files/130418/dlink-DSL2640B.txt; classtype:attempted-user; sid:2020487; rev:5; metadata:created_at 2015_02_19, confidence Medium, signature_severity Major, updated_at 2024_03_06;)