alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY Seetrol Software Download (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/download/"; startswith; content:".exe"; endswith; http.host; content:"www.seetrol."; startswith; fast_pattern; classtype:bad-unknown; sid:2033917; rev:1; metadata:created_at 2021_09_09, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_09_09;)