What is excfs.sys?
excfs.sys is part of ExpressCache™ and developed by Diskeeper Corporation according to the excfs.sys version information.
excfs.sys's description is "ExpressCache Filesystem Filter Driver"
excfs.sys is digitally signed by DISKEEPER CORPORATION.
excfs.sys is usually located in the 'C:\Windows\system32\drivers\' folder.
None of the anti-virus scanners at VirusTotal reports anything malicious about excfs.sys.
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 excfs.sys:
| Property | Value |
|---|---|
| Product name | ExpressCache™ |
| Company name | Diskeeper Corporation |
| File description | ExpressCache Filesystem Filter Driver |
| Internal name | excfs.sys |
| Original filename | excfs.sys |
| Legal copyright | Copyright© 2010-2011 Diskeeper Corporation. |
| Product version | 1.0.86.0 |
| File version | 1.0.86.0 built by: WinDDK |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | ExpressCache™ |
| Company name | Diskeeper Corporation |
| File description | ExpressCache Filesystem Filter Driver |
| Internal name | excfs.sys |
| Original filename | excfs.sys |
| Legal copyright | Copyright© 2010-2011 Diskeeper Corp.. |
| Product version | 1.0.86.0 |
| File version | 1.0.86.0 built by: WinDDK |
Digital signatures [?]
excfs.sys has a valid digital signature.
| Property | Value |
|---|---|
| Signer name | DISKEEPER CORPORATION |
| Certificate issuer name | VeriSign Class 3 Code Signing 2010 CA |
| Certificate serial number | 3b988fe5199e6f8d938a1a1fd853b882 |
VirusTotal report
None of the 44 anti-virus programs at VirusTotal detected the excfs.sys file.
Hashes [?]
| Property | Value |
|---|---|
| MD5 | d2eaa04af43154b62fa85b08bad0a7ca |
| SHA256 | b18f09cad04ad61a1b8dcd3bbc70a82fb50008c147389d3245e39856ba940a87 |
What will you do with excfs.sys?
To help other users, please let us know what you will do with excfs.sys:
What did other users do?
The poll result listed below shows what users chose to do with excfs.sys. 50% have voted for removal. Based on votes from 2 users.
NOTE: Please do not use this poll as the only source of input to determine what you will do with excfs.sys. Only 2 users has voted so far so it does not offer a high degree of confidence.
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 ;)
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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.
No comments posted yet.