Did you just stumble upon a download or a file on your computer that has a digital signature from InfoSpace? If that's the case, please read on.
You will probably notice InfoSpace when clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the additional details from the InfoSpace digital signature with the following procedure:
Here's a screenshot of a file digitally signed by InfoSpace:

As you can see in the screenshot above, Windows states that "This digital signature is OK". This implies that the file has been published by InfoSpace and that the file has not been tampered with.
If you click the View Certificate button shown in the screenshot above, you can view all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, and so on. You can also examine the address for InfoSpace, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the InfoSpace certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screencap above.
These are the InfoSpace files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 1/49 | toolbarupdater.exe |
| 0/48 | AVG Nation toolbar_toolbar.dll |
| 0/48 | AVG Nation toolbar_toolbar.dll |
| 0/43 | vprot.exe |
| 0/47 | vprot.exe |
| 0/45 | SiteSafety.dll |
| 0/47 | toolbarupdater.exe |
| 0/47 | vprot.exe |
| 0/49 | loggingserver.exe |
| 0/49 | SiteSafety.dll |
Here's the detection names for the InfoSpace files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| Emsisoft | Dropped:Win32.Sality.G (B) |
The detection percentage is based on the fact that I have collected 569 scan reports for the InfoSpace files. 1 of these scan reports came up with some sort of detection. If you like, you can review the full details of the scan reports by examining the files listed above.
The analysis has been done on certificates with the following serial numbers: