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What’s AM_Delta.exe (AntiMalware Definition Update)? Is it safe or a virus?

AM_Delta.exe, which stands for AntiMalware Definition Update, is an important process that belongs to Microsoft's Anti-Malware Client Platform and is used as a part of Windows Defender (now called Windows Security), which is a built-in antivirus and anti-malware program within the Windows operating system.

The program runs in the background and regularly checks for updates to the Windows Security antivirus database. It also performs quick and full system scans to ensure that the system is protected from any potential security threats.

(Researched by Carl @ SpyShelter Labs)

(Researched by Carl @ SpyShelter Labs)

Executable Processes List

More about AM_Delta.exe on WINDOWS

Who makes AM_Delta.exe (AntiMalware Definition Update)?

We’ve found Microsoft Corporation should be the publisher of AM_Delta.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 AM_Delta.exe safe or a virus?

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

  1. Scan the executable with Microsoft's built-in tech
  2. Find AM_Delta.exe's publisher
  3. Search the executable's hash with VirusTotal
  4. Monitor the executable's behavior
Last updated: February 11, 2024

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Why should you trust us?

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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