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Threat Group Cards: A Threat Actor Encyclopedia

Tool: DILLJUICE

Names	DILLJUICE FYAnti
Category	Malware
Type	Reconnaissance, Backdoor, Info stealer, Credential stealer, Exfiltration
Description	(Cylance) QuasarRAT is a lightweight remote administration tool written in C#. It can collect system information, download and execute applications, upload files, log keystrokes, grab screenshots/camera captures, retrieve system passwords and run shell commands. The remote access Trojan (RAT) is loaded by a bespoke loader (a.k.a. DILLWEED). The encrypted QuasarRAT payload is stored in the Microsoft.NET directory, decrypted into memory, and instantiated using a CLR host application. In later variants an additional component is also used to install the RAT as a service (a.k.a DILLJUICE). The following technical analysis focuses on the bespoke QuasarRAT loader developed by MenuPass and modifications made to the QuasarRAT backdoor.
Information	<https://threatvector.cylance.com/en_us/home/threat-spotlight-menupass-quasarrat-backdoor.html>
Malpedia	<https://malpedia.caad.fkie.fraunhofer.de/details/win.dilljuice>

Last change to this tool card: 24 April 2021

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All groups using tool DILLJUICE

Changed	Name	Country	Observed
APT groups
	Stone Panda, APT 10, menuPass		2006-Mar 2025

1 group listed (1 APT, 0 other, 0 unknown)

Digital Service Security Center
Electronic Transactions Development Agency

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