Open Mikrotik Backup — File Repack

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.

Modifying MikroTik backups to bypass passwords or gain unauthorized access to systems you do not own is illegal. Always have written permission from the device owner before attempting such procedures. This guide assumes you are analyzing your own backups for recovery or forensic purposes.