Ucrtbase.dll – Is It Safe? (Malware Check)

What Is Ucrtbase.dll? Is It Related to Malware?

Ucrtbase.dll is a legitimate system file, part of the Microsoft C Runtime Library (UCRT), and included with Windows operating systems. So, it is not malware but a file, responsible for running applications that require the Universal C Runtime, such as many modern Windows programs.

However, if your system is acting strangely and ucrtbase.dll’s behavior seems suspicious, it’s worth investigating further. This article will help you resolve your issues.

Is Ucrtbase.dll Dangerous?

Here are some signs to look for when wondering about Ucrtbase.dll’s nature:

• Some malware can masquerade as Ucrtbase.dll by placing similarly named files in non-standard directories. The legitimate file should be located in the C:\Windows\System32 folder.
• If Ucrtbase.dll is running constantly or consuming significant resources, it could indicate issues with the system image.
• Sometimes, unwanted processes can cause high CPU usage, often due to system file corruption, which could affect performance.

If you notice unusual system performance, high CPU usage, or if the file location doesn’t match the standard path, it’s a good idea to investigate further. When in doubt, running an anti-malware scan is always recommended.

How to Check If Ucrtbase.dll Is Legitimate or Malware

To be certain that the process is safe, you can perform several simple checks:

>Check Ucrtbase.dll’s digital signature by right-clicking on the file in its location. Then, go to Properties > Digital Signatures, and confirm that it’s signed by Microsoft.
• Corruption or Missing File: If ucrtbase.dll is missing or corrupted, you may experience crashes or errors. Fix it by reinstalling the Microsoft Visual C++ Redistributable.
• Malware Impersonation: Some malware may disguise itself as ucrtbase.dll. To verify its authenticity, right-click ucrtbase.dll in C:\Windows\System32\ → Properties → Details. It should be signed by Microsoft Corporation. If found in an unusual location, it might be malware.
• System File Checker (SFC) Scan: Run an SFC scan to check and repair system files: sfc /scannow.
• Virus Scan: Run a malware scan with a reputable anti-malware program, such as SpyHunter, to make sure that the file hasn’t been altered or replaced by malware.

Milena Dimitrova

An inspired writer and content manager who has been with SensorsTechForum since the project started. A professional with 10+ years of experience in creating engaging content. Focused on user privacy and malware development, she strongly believes in a world where cybersecurity plays a central role. If common sense makes no sense, she will be there to take notes. Those notes may later turn into articles! Follow Milena @Milenyim

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