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What’s ml64.exe (Microsoft® Macro Assembler (x64))? Is it safe or a virus?

ml64.exe is a process associated with the Microsoft Macro Assembler x64. It is a command-line tool that is used to assemble 64-bit x86 code into object files.

The assembler takes assembly language instruction and converts it into machine code that can be executed by the CPU. ml64.exe is an essential tool for developers working on 64-bit Windows applications and drivers since it allows them to write low-level code that can directly interact with the hardware. It is part of the Microsoft Visual Studio development toolset and is often used in conjunction with other development tools to build complex software applications for the Windows platform.

(Researched by Carl @ SpyShelter Labs)

Executable Processes List

More about ml64.exe on WINDOWS

Who makes ml64.exe (Microsoft® Macro Assembler (x64))?

We’ve found Microsoft Corporation should be the publisher of ml64.exe.

How do we know? Our SpyShelter cybersecurity labs focuses on monitoring different types of Windows PC executables and their behaviors for our popular SpyShelter Antispyware software. Learn more about us, and how our cybersecurity team studies Windows PC executables/processes.

What does it mean if someone is the publisher of a PC .exe (executable or process)?

The publisher of an executable is the entity responsible for its distribution and authenticity. Most processes/executables on your PC should be signed. The signature on the executable should have been verified through a third party whose job it is to make sure the entity is who it says it is. Find an unsigned executable? You should consider scanning any completely unsigned .exe on your PC.

Is ml64.exe safe or a virus?

Below are 4 simple steps you can take to see if the ml64.exe process is safe or malware.

  1. Scan the executable with Microsoft's built-in tech
  2. Find ml64.exe's publisher
  3. Search the executable's hash with VirusTotal
  4. Monitor the executable's behavior
Last updated: February 9, 2024

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Our team at SpyShelter has been studying Windows PC executables for over 15 years, to help fight against spyware, malware, and other threats. SpyShelter has been featured in publications like The Register, PC Magazine, and many others. Now we’re working to share free, actionable, and easy to understand information about Windows executables (processes) with the world, to help as many people as possible keep their devices safe. Learn more about us on our "About SpyShelter” page.

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