alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET WEB_CLIENT [TW] WEBDAV Requesting Startup Dir"; flow:established,to_server; http.uri; content:"/Microsoft/Windows/Start Menu/Programs/Startup/"; fast_pattern; http.user_agent; content:"Microsoft-WebDAV-MiniRedir"; nocase; startswith; reference:url,irsl.medium.com/the-trouble-with-microsofts-troubleshooters-6e32fc80b8bd; classtype:attempted-user; sid:2036880; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_06_06, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_06_06;)