alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Win32/Adware.Kraddare.FJ Checkin"; flow:to_server,established; http.uri; content:".php?pi="; fast_pattern; content:"&gu="; content:"&ac="; http.user_agent; content:"Mozilla/4.0(compatible|3b 20|MSIE 6.0)"; bsize:33; classtype:pup-activity; sid:2013540; rev:8; metadata:created_at 2011_09_06, signature_severity Minor, updated_at 2020_10_12;)