alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Better Internet Spyware User-Agent (thnall)"; flow:established,to_server; http.user_agent; content:"THNALL"; nocase; fast_pattern; content:".EXE"; distance:0; nocase; classtype:pup-activity; sid:2002002; rev:34; metadata:attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, confidence High, signature_severity Minor, tag Spyware_User_Agent, updated_at 2024_03_12;)