Did you just find a download or a file on your computer that is digitally signed by Nexon America? If that's the case, please read on.
You'll probably see Nexon America when running the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can also view the Nexon America certificate with the following steps:
Here's a screenshot of a file that has been signed by Nexon America:

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 Nexon America 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 Nexon America, such as the street name, city and country.
Symantec Class 3 SHA256 Code Signing CA has issued the Nexon America 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 Nexon America files I've gathered, thanks to the FreeFixer users.Unfortunately I don't have any scan result from VirusTotal available for the Nexon America files at the moment. The scan results will appear here as soon as a FreeFixer user uploads a file digitally signed by Nexon America.
| Detection Ratio | File Name |
|---|---|
| Not available | NexonLauncherSetup.exe |
The analysis is done on certificates with the following serial numbers: