Did you just stumble upon a file that has a digital signature from Decho Corp.? If so, please read on.
You will typically see Decho Corp. when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can also view the Decho Corp. certificate with the following procedure:
Here's a screenshot of a file digitally signed by Decho Corp.:

As you can see in the screenshot above, Windows reports that "This digital signature is OK". This means that the file has been published by Decho Corp. and that no one has tampered with the file.
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, etc. You can also see the address for Decho Corp., such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the Decho Corp. certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Decho Corp. files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/53 | mobk.sys |
| 0/54 | MOBKbackup.exe |
| 0/53 | mobk.sys |
| 0/56 | MOBKbackup.exe |
The detection percentage is based on the fact that I have collected 216 scan reports for the Decho Corp. files. 0 of these scan results came up with some sort of detection. If you like, you can view the full details of the scan results by examining the files listed above.
The analysis has been done on certificates with the following serial numbers: