Did you just find a file that is digitally signed by Netsweeper Inc.? If that's the case, please read on.
You'll typically notice Netsweeper Inc. 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 the additional details from the Netsweeper Inc. digital signature with the following steps:
Here's a screengrab of a file that has been digitally signed by Netsweeper Inc.:

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 Netsweeper Inc. and that no one has tampered with the file.
If you click the View Certificate button shown in the screengrab 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, and so on. You can also see the address for Netsweeper Inc., such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the Netsweeper Inc. 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 Netsweeper Inc. files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 1/57 | liger.dll |
| 0/45 | liger64.dll |
Here's the detection names for the Netsweeper Inc. files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ByteHero | Trojan-Downloader.win32.Small.gen.105 |
The detection percentage is based on the fact that I've gathered 102 scan results for the Netsweeper Inc. files. 1 of these scan reports came up with some sort of detection. If you like, you can review the full details of the scan reports by examining the files listed above.
The analysis is based on certificates with the following serial numbers: