alert http any any -> $HOME_NET any (msg:"ET EXPLOIT Netgear WNDR Router DNS Change POST Request"; flow:to_server,established; urilen:26; http.method; content:"POST"; http.uri; content:"/apply.cgi?/BAS_update.htm"; http.request_body; content:"submit_flag=ether"; depth:17; fast_pattern; content:"&ether_dnsaddr1="; distance:0; nocase; content:"&Apply=Apply"; distance:0; reference:url,www.s3cur1ty.de/node/640; classtype:attempted-admin; sid:2020859; rev:5; metadata:created_at 2015_04_08, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_05_21;)