Did you just download a file that has a digital signature from Touch-Base Ltd and wonder if the file is safe? If so, please read on.
You will probably notice Touch-Base Ltd when clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the digital signature details for Touch-Base Ltd with the following procedure:
Here is a screenshot of a file that has been signed by Touch-Base Ltd:

As you can see in the screencap above, Windows reports that "This digital signature is OK". This means that the file has been published by Touch-Base Ltd 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 view the address for Touch-Base Ltd, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the Touch-Base Ltd certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Touch-Base Ltd files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/57 | tbupddwu.exe |
The detection percentage is based on the fact that I have gathered 57 scan results for the Touch-Base Ltd files. 0 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: