Did you just find a download or a file on your computer that has a digital signature from Cristina Mailat? If so, please read on.
You will probably see Cristina Mailat when clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view additional details from the Cristina Mailat certificate with the following procedure:
Here's a screenshot of a file digitally signed by Cristina Mailat:

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 Cristina Mailat and that the file has not been tampered with.
If you click the View Certificate button shown in the screenshot above, you can see 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 Cristina Mailat, such as the street name, city and country.
COMODO Code Signing CA 2 has issued the Cristina Mailat certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screengrab above.
The following are the Cristina Mailat files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/71 | articlesubmittersetup.exe |
The detection percentage is based on the fact that I've gathered 71 scan reports for the Cristina Mailat files. 0 of these scan results came up with some sort of detection. You can view the full details of the scan results by examining the files listed above.
The analysis is done on certificates with the following serial numbers: