Family: DcRat

DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

Modifies WinLogon for persistence

Process spawned unexpected child process

This typically indicates the parent process was compromised via an exploit or macro.

UAC bypass

Detects executables packed with SmartAssembly

Boot or Logon Autostart Execution: Active Setup

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

Command and Scripting Interpreter: PowerShell

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

Drops file in Drivers directory