Out1 is a remote access tool written in python and used by MuddyWater since at least 2021.[1]

ID: S0594
Type: TOOL
Platforms: Windows
Version: 1.0
Created: 19 March 2021
Last Modified: 26 April 2021

Techniques Used

Domain ID Name Use
Enterprise T1071 .001 Application Layer Protocol: Web Protocols

Out1 can use HTTP and HTTPS in communications with remote hosts.[1]

Enterprise T1059 .003 Command and Scripting Interpreter: Windows Command Shell

Out1 can use native command line for execution.[1]

Enterprise T1005 Data from Local System

Out1 can copy files and Registry data from compromised hosts.[1]

Enterprise T1114 .001 Email Collection: Local Email Collection

Out1 can parse e-mails on a target machine.[1]

Enterprise T1027 Obfuscated Files or Information

Out1 has the ability to encode data.[1]

Groups That Use This Software

ID Name References
G0069 MuddyWater