Unlock Micrologix 1400 Master Password

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• Developed a specialized software utility to directly interface with the memory of Allen-Bradley MicroLogix 1400 PLCs for advanced security management.
• Core Functionality:
  • Read/Access:  Retrieve and display the user subroutine and master password hashes/values ​​directly from the PLC's memory.
  • Clear/Reset:  Securely erase or nullify existing passwords to regain access to locked systems.
  • Write/Modify:  Program new authentication credentials directly onto the controller.
    
    
• Key Technical Achievement:  Established a direct Ethernet/IP communication protocol to perform low-level memory operations, bypassing the need for traditional software clients for access recovery.