Open Mikrotik Backup File Repack Jun 2026

# extract dd if=backup.backup bs=1 skip=16 of=payload.lz4 # example offset

These are readable text files containing the CLI commands needed to rebuild the configuration. This is the format you need if you intend to "open" or "repack" the settings. MikroTik community forum 2. How to "Open" and View a Backup

# Rename the original backup to MikrotikOriginBackUp.backup # Reset your MikroTik router (ensure you have a backup of current config) # Create a backup on the router named default.backup ./ROSbackup.py resetpassword -i MikrotikOriginBackUp.backup -d default.backup -o MikrotikNewBackup.backup # Restore MikrotikNewBackup.backup on the router open mikrotik backup file repack

# Compress back to LZ77 python lz77_compress.py config_dump.txt compressed.bin # Encrypt with TARGET's ID + a new password (or blank) python mtk_encrypt.py compressed.bin --target-id NEWID --password "" --output new_payload.bin

Unlike standard configuration exports ( .rsc ), which are readable text files, MikroTik backups are custom binary containers. They consist of a header followed by data stored in .idx (index) and .dat (data) file pairs. Starting with RouterOS v6.43, backups are either unencrypted (if no password is set) or encrypted using SHA256 hashing and AES128-CTR ciphers. # extract dd if=backup

How to Open and Repack MikroTik Backup Files (.backup) Opening and "repacking" a MikroTik .backup file is not a standard task within the MikroTik ecosystem. Officially, .backup files are encrypted binary files designed for restoring a specific device to a previous state. Unlike .rsc export files, they are not human-readable or meant to be edited.

How to Open and Repack MikroTik Backup Files: A Step-by-Step Guide How to "Open" and View a Backup #

python3 backup_open.py router_config.backup --output extracted/

lz4 payload.bin new_payload.lz4

Without the original encryption key, this is nearly impossible for a .backup file.

Once you have modified the necessary internal files (such as the user database for a password reset), you need to "repack" them into a valid .backup format that RouterOS will accept.