alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Spywaremover Activity"; flow:to_server,established; content:"/download/cabs/THNALL1L/thnall1l.exe"; http_uri; reference:url,www3.ca.com/securityadvisor/pest/pest.aspx?id=453087903; classtype:pup-activity; sid:2001521; rev:13; metadata:created_at 2010_07_30, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_08_14;)