alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP MediaTickets Download"; flow:to_server,established; http.uri; content:"MediaTicketsInstaller.cab"; http.host; content:"www.mt-download.com"; startswith; reference:url,securityresponse.symantec.com/avcenter/venc/data/adware.winad.html; classtype:pup-activity; sid:2001448; rev:14; metadata:created_at 2010_07_30, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_31;)