alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET WEB_CLIENT [TW] WEBDAV UA"; flow:established,to_server; flowbits:set,ET.WEBDAVUA; flowbits:noalert; http.method; content:"GET"; http.user_agent; content:"Microsoft-WebDAV-MiniRedir"; nocase; startswith; classtype:attempted-user; sid:2036877; rev:2; metadata:created_at 2022_06_06, deprecation_reason Age, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_12_02, reviewed_at 2024_12_02;)