Compromise Infrastructure: DNS Server

ID Name
VT0023.001 DNS Server
VT0023.002 Domains

Before compromising a victim, adversaries may compromise third-party DNS servers that can be used during targeting. During post-compromise activity, adversaries may utilize DNS traffic for various tasks, including for Command and Control (ex: Application Layer Protocol). Instead of setting up their own DNS servers, adversaries may compromise third-party DNS servers in support of operations.

By compromising DNS servers, adversaries can alter DNS records. Such control can allow for redirection of an organization's traffic, facilitating Collection and Credential Access efforts for the adversary.[1][2] Adversaries may also be able to silently create subdomains pointed at malicious servers without tipping off the actual owner of the DNS server.[3][4][5]

Mitigations

This type of attack technique cannot be easily mitigated with preventive controls since it is based on the abuse of system features.

Detection

Much of this activity will take place outside the visibility of the target organization, making detection of this behavior difficult. Detection efforts may be focused on related stages of the adversary lifecycle, such as during Command and Control.

References

Attachments

ID
VT0023.001
Sub-techniques
Tactic
Resource Development
Platforms
PRE
Version
1.0

Created: 30 December 2020

Last Modified: 30 December 2020