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create-mutex.md

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ID C0042
Objective(s) Process
Related ATT&CK Techniques None
Version 2.0
Created 4 December 2020
Last Modified 13 September 2023

Create Mutex

Malware creates a mutex.

Use in Malware

Name Date Method Description
Poison Ivy 2005 -- Poison Ivy has a default process mutex, but can be altered at build time. [1]
Stuxnet 2010 -- Malware creates global mutexes that signal rootkit installation has occurred successfully. [2]
Hupigon 2013 -- Hupigon creates a mutex. [3]
Kovter 2016 -- Kovter creates a mutex. [3]
Redhip 2011 -- Redhip creates a mutex. [3]
Rombertik 2015 -- Rombertik creates a mutex. [3]

Detection

Tool: capa Mapping APIs
create mutex Create Mutex (C0042) kernel32.CreateMutex, kernel32.CreateMutexEx, System.Threading.Mutex::ctor
lock file Create Mutex (C0042) fcntl

References

[1] https://www.fortinet.com/blog/threat-research/deep-analysis-of-new-poison-ivy-variant

[2] https://docs.broadcom.com/doc/security-response-w32-stuxnet-dossier-11-en

[3] capa v4.0, analyzed at MITRE on 10/12/2022