alert http any any -> $HOME_NET any (msg:"ET EXPLOIT Linksys WRT54GL Router DNS Change POST Request"; flow:to_server,established; urilen:10; http.method; content:"POST"; http.uri; content:"/apply.cgi"; endswith; http.request_body; content:"submit_button=index"; depth:19; content:"&action=Apply"; distance:0; nocase; content:"&lan_dns0="; distance:0; fast_pattern; reference:url,www.s3cur1ty.de/node/640; classtype:attempted-admin; sid:2020858; rev:4; metadata:created_at 2015_04_08, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_02;)