Did you just run into a file that has been digitally signed by Doubledot Media Ltd? If that's the case, please read on.
You will probably notice Doubledot Media 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 Doubledot Media Ltd with the following procedure:
Here is a screenshot of a file signed by Doubledot Media Ltd:

As you can see in the screenshot above, Windows states that "This digital signature is OK". This means that the file has been published by Doubledot Media Ltd and that no one has tampered with the file.
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 examine the address for Doubledot Media Ltd, such as the street name, city and country.
COMODO Code Signing CA 2 and COMODO RSA Code Signing CA has issued the Doubledot Media Ltd certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Doubledot Media Ltd files I have gathered, thanks to the FreeFixer users.Unfortunately I don't have any scan result from VirusTotal available for the Doubledot Media Ltd files at the moment. The scan results will appear here as soon as a FreeFixer user uploads a file digitally signed by Doubledot Media Ltd.
| Detection Ratio | File Name |
|---|---|
| Not available | phantomjs.exe |
| Not available | traffic_travis_v4.exe |
The analysis has been done on certificates with the following serial numbers: