Backdoor Programs

Trisha Arocena

2 types

1. Backdoor programs as administrative application tools

2. Backdoor programs as viruses

Backdoor programs as admin application tools

• Developed in 1990

• Means of access to a computer program that bypasses security mechanisms

Remote Administration & Troubleshooting

Security

Direct Connection

Reverse Connection

Backdoor programs as viruses

• Program installed to victim computer to be accessed at a later time

• Usually no trace of entry - undetected

Common types of backdoor programs:

• Back Orifice / Back Orifice 2000

• Netbus / Netbus 2.0 Pro

• SubSeven / Sub7

Example

• Default BIOS, router or switch passwords

• Gives entry way to malicious files attached with virus

• Sometimes remain dormant and once activated, it can penetrate your computer

Backdoors can penetrate via:

• E-mail

• Remote vulnerabilities

• P2P networks

Protection

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