Did you just find a download or a file on your computer that has a digital signature from Hulu? If so, please read on.
You'll typically see Hulu when running the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screencap shows:

You can view additional details from the Hulu certificate with the following steps:
Here is a screenshot of a file that has been signed by Hulu:

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 Hulu and that the file has not been tampered with.
If you click the View Certificate button shown in the screengrab above, you can examine 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 see the address for Hulu, such as the street name, city and country.
VeriSign Class 3 Code Signing 2009-2 CA and VeriSign Class 3 Code Signing 2004 CA has issued the Hulu certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Hulu files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/42 | HuluDesktop.exe |
| 0/41 | hdIEPlg.dll |
| 0/57 | HuluDesktop.exe |
The detection percentage is based on that I've gathered 140 scan reports for the Hulu files. 0 of these scan reports 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: