alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Thespyguard.com Spyware Update Check"; flow:established,to_server; http.uri; content:"/soft/update/check_update.php"; nocase; http.host; content:"www.kliksoftware.com"; startswith; fast_pattern; reference:url,www.kliksoftware.com; reference:url,www.thespyguard.com; classtype:pup-activity; sid:2003202; rev:9; metadata:created_at 2010_07_30, signature_severity Minor, updated_at 2024_03_02;)