From a host that can read the selected files, create a password-protected ZIP archive and upload it to an authorized external SFTP directory using OpenSSH. This is an example of exfiltration over an alternative SSH-based file-transfer protocol; archive and transport encryption do not hide source-file access, endpoint activity, or transfer metadata.
Variant:
Create Password-Protected Archive
powershell
RESTRICTED_ACCESS_BLUR_MARKER
RESTRICTED_ACCESS_BLUR_MARKER
RESTRICTED_ACCESS_BLUR_MARKER
RESTRICTED_ACCESS_BLUR_MARKER