What is ntdll.dll?
ntdll.dll is part of Microsoft® Windows® Operating System and developed by Microsoft Corporation according to the ntdll.dll version information.
ntdll.dll's description is "NT Layer DLL"
ntdll.dll is digitally signed by Microsoft Windows Component Publisher.
ntdll.dll is usually located in the 'C:\WINDOWS\system32\' folder.
None of the anti-virus scanners at VirusTotal reports anything malicious about ntdll.dll.
If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.
Vendor and version information [?]
The following is the available information on ntdll.dll:
| Property | Value |
|---|---|
| Product name | Microsoft® Windows® Operating System |
| Company name | Microsoft Corporation |
| File description | NT Layer DLL |
| Internal name | ntdll.dll |
| Original filename | ntdll.dll |
| Legal copyright | © Microsoft Corporation. All rights reserved. |
| Product version | 5.1.2600.5512 |
| File version | 5.1.2600.5512 (xpsp.080413-2111) |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | Microsoft® Windows® Operating System |
| Company name | Microsoft Corporation |
| File description | NT Layer DLL |
| Internal name | ntdll.dll |
| Original filename | ntdll.dll |
| Legal copyright | © Microsoft Corporation. All rights.. |
| Product version | 5.1.2600.5512 |
| File version | 5.1.2600.5512 (xpsp.080413-2111) |
Digital signatures [?]
ntdll.dll has a valid digital signature.
| Property | Value |
|---|---|
| Signer name | Microsoft Windows Component Publisher |
| Certificate issuer name | Microsoft Windows Verification Intermediate PCA |
| Certificate serial number | 6102307e000000000006 |
VirusTotal report
None of the 47 anti-virus programs at VirusTotal detected the ntdll.dll file.
Folder name variants
ntdll.dll may also be located in other folders than C:\WINDOWS\system32\. The most common variants are listed below:
- c:\$WIN_NT$.~BT\system32\
Hashes [?]
| Property | Value |
|---|---|
| MD5 | 27d9ed8cb8b62d1e0a8e5ace6cf52e2f |
| SHA256 | ad2d62f604472958c8b3c20df29d9b5f8b7878e7831af8db7c669636e16afb7c |
What will you do with ntdll.dll?
To help other users, please let us know what you will do with ntdll.dll:
What did other users do?
The poll result listed below shows what users chose to do with ntdll.dll. 18% have voted for removal. Based on votes from 40 users.
Malware or legitimate?
If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.
And now some shameless self promotion ;)
Hi, my name is Roger Karlsson. I've been running this website since 2006. I want to let you know about the FreeFixer program. FreeFixer is a freeware tool that analyzes your system and let you manually identify unwanted programs. Once you've identified some malware files, FreeFixer is pretty good at removing them. You can download FreeFixer here. It runs on Windows 2000/XP/2003/2008/2016/2019/Vista/7/8/8.1/10. Supports both 32- and 64-bit Windows.
If you have questions, feedback on FreeFixer or the freefixer.com website, need help analyzing FreeFixer's scan result or just want to say hello, please contact me. You can find my email address at the contact page.
Comments
Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.
I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.
Roger Karlsson writes