Created the Saturday 23 March 2019. Updated 3 months, 1 week ago.

Suspending threads is a technique used by malware to disable user-mode debuggers and make it more difficult for security analysts to reverse engineer and analyze the code. This can be achieved by using the SuspendThread function from the kernel32.dll library or the NtSuspendThread function from the NTDLL.DLL library.

The malware can enumerate the threads of a given process, or search for a named window and open its owner thread, and then suspend that thread. This will prevent the debugger from running and make it more difficult to analyze the code.

This technique can be used by malware authors to evade detection and analysis, and make their code more difficult to understand.

Code Snippets

Detection Rules


Additional Resources

External Links

The resources provided below are associated links that will give you even more detailed information and research on current evasion technique. It is important to note that, while these resources may be helpful, it is important to exercise caution when following external links. As always, be careful when clicking on links from unknown sources, as they may lead to malicious content.

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