ClickFix leads to Tsundere Bot, Tunnels, RMM's and Double Theft - Private Case #39390

This case is based on a Private Threat Brief detailing a single workstation compromise that launches a weeks long intrusion where the threat actor(s) return again and again bringing new tools and just one more RMM to the case before exfiltrating data from the environment. Not once, but twice. Throw in some tunneling and is that a virtual machine they dropped? This case was featured in the 2026 DFIR Challenge. To read more about DFIR Labs click here. Important: Choose the Correct License Type Personal License For individuals paying out of their own pocket for personal skill development only. Self-funded learning Personal skill improvement No organizational benefit Enterprise License Required if any organization benefits from your use, including: Company-sponsored training Skills used for work purposes Educational institutions Team learning activities Important: If your employer is paying for this lab OR if the skills learned will benefit your employer/organization in any way, you must purchase an Enterprise license. This applies even if you're paying personally but using the skills for work. You will receive an email within 5 minutes of purchase with instructions on how to activate the lab. Buy now, use anytime within the next 3 months. Enjoy! Disclaimer All information in the DFIR Labs and analysis of that information shall be treated as TLP:RED. This classification mandates that the information is not shared publicly or privately without explicit permission from The DFIR Report. The difficulty of each DFIR Lab case is inherently subjective and may vary based on the participant's individual skills and experience.