If you strictly have a binary .backup file and cannot access the original router to run an export:
import lz77 decrypted_data = decrypt_aes(encrypted_payload, key) decompressed = lz77.decompress(decrypted_data) # Now decompressed contains a plaintext .rsc-like structure but with passwords in plaintext. with open("config_dump.txt", "wb") as f: f.write(decompressed) open mikrotik backup file repack
Since standard text editors cannot read these files, community-developed tools are required to manipulate them: If you strictly have a binary
MikroTik RouterOS is a dominant force in the networking world, known for its flexibility and the powerful WinBox configuration utility. A critical administrative task is creating backups using the .backup file format. While convenient for quick restoration, this binary format is opaque by design. The concept of "repacking" these files—opening them, modifying the configuration, and reassembling them—serves as a vital capability for disaster recovery, security auditing, and password recovery. While convenient for quick restoration, this binary format