What is webinstr.sys?

webinstr.sys is part of Web Instrument and developed by Corsica according to the webinstr.sys version information.

webinstr.sys's description is "Web Instrumentation Driver"

webinstr.sys is digitally signed by Corsica Technologies Ltd..

webinstr.sys is usually located in the 'c:\windows\system32\drivers\' folder.

Some of the anti-virus scanners at VirusTotal detected webinstr.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 webinstr.sys:

PropertyValue
Product nameWeb Instrument
Company nameCorsica
File descriptionWeb Instrumentation Driver
Internal nameWeb Instrument
Original filenamewebinstr.sys
Legal copyrightCopyright (C) 2013
Product version1.1.0.0
File version1.1.0.0

Here's a screenshot of the file properties when displayed by Windows Explorer:

Product nameWeb Instrument
Company nameCorsica
File descriptionWeb Instrumentation Driver
Internal nameWeb Instrument
Original filenamewebinstr.sys
Legal copyrightCopyright (C) 2013
Product version1.1.0.0
File version1.1.0.0

Digital signatures [?]

webinstr.sys has a valid digital signature.

PropertyValue
Signer nameCorsica Technologies Ltd.
Certificate issuer nameVeriSign Class 3 Code Signing 2010 CA
Certificate serial number70eca2b222e57f5330852a47ebb2a333

VirusTotal report

15 of the 55 anti-virus programs at VirusTotal detected the webinstr.sys file. That's a 27% detection rate.

ScannerDetection Name
Ad-Aware Gen:Variant.Adware.AddLyrics.19
AVware Revizer (fs)
Baidu-International Adware.Win32.AddLyrics.BBJ
BitDefender Gen:Variant.Adware.AddLyrics.19
Comodo ApplicUnwnt
Emsisoft Gen:Variant.Adware.AddLyrics.19 (B)
ESET-NOD32 Win32/AdWare.AddLyrics.BJ
F-Secure Gen:Variant.Adware.AddLyrics.19
GData Gen:Variant.Adware.AddLyrics.19
K7AntiVirus Adware ( 004a93771 )
K7GW Adware ( 004a93771 )
MicroWorld-eScan Gen:Variant.Adware.AddLyrics.19
Sophos AddLyrics
TrendMicro-HouseCall Suspicious_GEN.F47V0807
VIPRE Revizer (fs)
15 of the 55 anti-virus programs detected the webinstr.sys file.

webinstr.sys removal instructions

The instructions below shows how to remove webinstr.sys with help from the FreeFixer removal tool. Basically, you install FreeFixer, scan your computer, check the webinstr.sys file for removal, restart your computer and scan it again to verify that webinstr.sys has been successfully removed. Here are the removal instructions in more detail:

  1. Download and install FreeFixer: http://www.freefixer.com/download.html
  2. Start FreeFixer and press the Start Scan button. The scan will finish in approximately five minutes.
    Screenshot of Start Scan button
  3. When the scan is finished, locate webinstr.sys in the scan result and tick the checkbox next to the webinstr.sys file. Do not check any other file for removal unless you are 100% sure you want to delete it. Tip: Press CTRL-F to open up FreeFixer's search dialog to quickly locate webinstr.sys in the scan result.
    Red arrow point on the unwanted file
    c:\windows\system32\drivers\webinstr.sys
  4. Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the webinstr.sys file.
    Screenshot of Fix button
  5. Restart your computer.
  6. Start FreeFixer and scan your computer again. If webinstr.sys still remains in the scan result, proceed with the next step. If webinstr.sys is gone from the scan result you're done.
  7. If webinstr.sys still remains in the scan result, check its checkbox again in the scan result and click Fix.
  8. Restart your computer.
  9. Start FreeFixer and scan your computer again. Verify that webinstr.sys no longer appear in the scan result.
Please select the option that best describe your thoughts on the removal instructions given above








Free Questionnaires

Other files also named webinstr.sys

webinstr.sys (35 votes)

Hashes [?]

PropertyValue
MD554c8edc39d56b3f36aa27c7c3f19d332
SHA256559938be8484149bc7482d444162da86f9927aa93bfa1c5a201673ce91e90b35

What will you do with webinstr.sys?

To help other users, please let us know what you will do with webinstr.sys:



What did other users do?

The poll result listed below shows what users chose to do with webinstr.sys. 0% have voted for removal. Based on votes from 1 user.

Votes
Keep100 %
1
Remove0 %
0

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.

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