DcRat

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

Dcrat family

Modifies WinLogon for persistence

Process spawned unexpected child process

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

UAC bypass

DCRat payload

Detects payload of DCRat, commonly dropped by NSIS installers.

Command and Scripting Interpreter: PowerShell

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

Downloads MZ/PE file

Event Triggered Execution: AppInit DLLs

Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.