Open Mikrotik Backup File Repack May 2026

To modify a backup, you must first convert it from its binary/encrypted state into an editable directory structure. 1. Decrypt and Unpack

Since RouterOS v6.43, backups are encrypted by default if a password is set. They use AES128-CTR with HMAC-SHA256 for integrity. How to Unpack and Repack MikroTik Backup Files

The most popular tool for this is the open-source RouterOS-Backup-Tools . open mikrotik backup file repack

./ROSbackup.py pack -d unpacked_folder -o Modified.backup

./ROSbackup.py unpack -i Decrypted.backup -d unpacked_folder This creates a folder containing various system files, such as user.dat , which contains encrypted user credentials. 2. Modify Contents (e.g., Resetting Passwords) To modify a backup, you must first convert

Use specialized extractors like ./extract_user.py to view existing user data from the unpacked files. 3. Repack and Encrypt

./ROSbackup.py encrypt -i Modified.backup -o Final.backup -p new_password Restoring the Repacked File To apply your modified settings: They use AES128-CTR with HMAC-SHA256 for integrity

./ROSbackup.py decrypt -i MyBackup.backup -o Decrypted.backup -p your_password

Unlike .rsc export files, which are plain-text scripts, .backup files are binary blobs that contain sensitive system data, including user accounts and certificates.

After making changes, you must rebuild the .backup file for the router to accept it.