Modify Authentication Process: Network Device Authentication (T1556.004)

Tactics: Defense Impairment, Persistence, Credential Access · Platforms: Network Devices

The interactive view maps 1 detection strategy, 2 mitigations, 3 software entries to this technique, alongside D3FEND countermeasures and data-component coverage.

Sub-technique of Modify Authentication Process (T1556).

Overview

Adversaries may use Patch System Image to hard code a password in the operating system, thus bypassing of native authentication mechanisms for local accounts on network devices.

Modify System Image may include implanted code to the operating system for network devices to provide access for adversaries using a specific password. The modification includes a specific password which is implanted in the operating system image via the patch. Upon authentication attempts, the inserted code will first check to see if the user input is the password. If so, access is granted. Otherwise, the implanted code will pass the credentials on for verification of potentially valid credentials.

Explore

• Open T1556.004 in the interactive ATT&CK matrix
• ATT&CK Intelligence View guide
• Official MITRE ATT&CK entry for T1556.004
• Sigma detection rules for MITRE ATT&CK
• Built by Shahrukh Khan