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:
| Property | Value |
|---|---|
| Product name | Web Instrument |
| Company name | Corsica |
| File description | Web Instrumentation Driver |
| Internal name | Web Instrument |
| Original filename | webinstr.sys |
| Legal copyright | Copyright (C) 2013 |
| Product version | 1.1.0.0 |
| File version | 1.1.0.0 |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | Web Instrument |
| Company name | Corsica |
| File description | Web Instrumentation Driver |
| Internal name | Web Instrument |
| Original filename | webinstr.sys |
| Legal copyright | Copyright (C) 2013 |
| Product version | 1.1.0.0 |
| File version | 1.1.0.0 |
Digital signatures [?]
webinstr.sys has a valid digital signature.
| Property | Value |
|---|---|
| Signer name | Corsica Technologies Ltd. |
| Certificate issuer name | VeriSign Class 3 Code Signing 2010 CA |
| Certificate serial number | 70eca2b222e57f5330852a47ebb2a333 |
VirusTotal report
8 of the 54 anti-virus programs at VirusTotal detected the webinstr.sys file. That's a 15% detection rate.
| Scanner | Detection Name |
|---|---|
| AVware | Revizer (fs) |
| Baidu-International | Adware.Win32.AddLyrics.bBJ |
| Comodo | ApplicUnwnt |
| ESET-NOD32 | a variant of Win32/AdWare.AddLyrics.BJ |
| K7AntiVirus | Adware ( 004a07281 ) |
| K7GW | Adware ( 004a07281 ) |
| Sophos | AddLyrics |
| VIPRE | Revizer (fs) |
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:
- Download and install FreeFixer: http://www.freefixer.com/download.html
- Start FreeFixer and press the Start Scan button. The scan will finish in approximately five minutes.
- 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.
c:\windows\system32\drivers\webinstr.sys 
- Scroll down to the bottom of the scan result and press the Fix button. FreeFixer will now delete the webinstr.sys file.
- Restart your computer.
- 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.
- If webinstr.sys still remains in the scan result, check its checkbox again in the scan result and click Fix.
- Restart your computer.
- Start FreeFixer and scan your computer again. Verify that webinstr.sys no longer appear in the scan result.
Other files also named webinstr.sys
webinstr.sys (35 votes)
Hashes [?]
| Property | Value |
|---|---|
| MD5 | 276fb7b5c543ed0b1273034ad8aadc18 |
| SHA256 | c63eb5a2027bf5a81f21a3fc6a6aaf71f43164c2ecb9a417c09779b8409a4f48 |
What will you do with webinstr.sys?
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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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