alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Vundo HTTP Post-Install Checkin (2)"; flow:established,to_server; http.uri; content:"?w="; nocase; content:"&ucid="; nocase; content:"&e=00"; fast_pattern; nocase; content:"&err="; nocase; classtype:command-and-control; sid:2008082; rev:4; metadata:created_at 2010_07_30, signature_severity Major, updated_at 2024_03_10;)