What is cumon.sys?
cumon.sys is part of Windows (R) Win 7 DDK driver and developed by Windows (R) Win 7 DDK provider according to the cumon.sys version information.
cumon.sys's description is "CRCMon System Filter Driver"
cumon.sys is digitally signed by Comodo Security Solutions, Inc..
cumon.sys is usually located in the 'C:\WINDOWS\system32\drivers\' folder.
None of the anti-virus scanners at VirusTotal reports anything malicious about cumon.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 cumon.sys:
| Property | Value |
|---|---|
| Product name | Windows (R) Win 7 DDK driver |
| Company name | Windows (R) Win 7 DDK provider |
| File description | CRCMon System Filter Driver |
| Internal name | CRCMon.sys |
| Original filename | CRCMon.sys |
| Legal copyright | © Microsoft Corporation. All rights reserved. |
| Product version | 6.1.7600.16385 |
| File version | 6.1.7600.16385 built by: WinDDK |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | Windows (R) Win 7 DDK driver |
| Company name | Windows (R) Win 7 DDK provider |
| File description | CRCMon System Filter Driver |
| Internal name | CRCMon.sys |
| Original filename | CRCMon.sys |
| Legal copyright | © Microsoft Corporation. All rights.. |
| Product version | 6.1.7600.16385 |
| File version | 6.1.7600.16385 built by: WinDDK |
Digital signatures [?]
cumon.sys has a valid digital signature.
| Property | Value |
|---|---|
| Signer name | Comodo Security Solutions, Inc. |
| Certificate issuer name | VeriSign Class 3 Code Signing 2009-2 CA |
| Certificate serial number | 2c01585522e8fa61138aefa4f627eea8 |
VirusTotal report
None of the 42 anti-virus programs at VirusTotal detected the cumon.sys file.
Hashes [?]
| Property | Value |
|---|---|
| MD5 | 2cf4617cd002a164441db94a8c0710a3 |
| SHA256 | 0b1f9352b98c2b048f6afbd4ba5d273ae4100b0d622f1f167e12fa0f889b3554 |
What will you do with cumon.sys?
To help other users, please let us know what you will do with cumon.sys:
What did other users do?
The poll result listed below shows what users chose to do with cumon.sys. 79% have voted for removal. Based on votes from 19 users.
NOTE: Please do not use this poll as the only source of input to determine what you will do with cumon.sys. Only 19 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.
OMG, FREAKING DELETE cumon.sys !
That file gave me so many problems, and now that I've permanently erased that file from my system, EVERYTHING WORKS LIKE IT SHOULD!!!
So, in conclusion, GET RID OF cumon.sys !
# 3 Jul 2012, 10:51
whisper writes