alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY File Shared via Zoom"; flow:established,to_server; http.method; content:"GET"; http.host; content:"support.zoom.us"; bsize:15; fast_pattern; http.uri; content:"/attachments/token/"; startswith; content:"/?name="; distance:0; classtype:bad-unknown; sid:2034981; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_01_26, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_01_26;)