PowerShell DNS Command & Control with dnscat2-powershell
Summary
This article discusses how penetration testers can establish command and control (C2) over an internal network that blocks most outbound traffic by leveraging DNS. It specifically focuses on using dnscat2-powershell for this purpose.
IFF Assessment
FOE
This article describes a technique that can be used by attackers to establish command and control, which is detrimental to defenders.
Defender Context
Defenders should be aware of DNS tunneling techniques for command and control. Monitoring DNS traffic for unusual patterns, such as high query volumes to suspicious domains or non-standard DNS record types, can help detect such activities. Implementing egress filtering and DNS security solutions can also mitigate this threat.