Did you just stumble upon a download or a file on your computer that has been digitally signed by Jetstar Media LTD? Some of the security products refers to the detected files as PUP/Inetstat and Adware.NetAdapter. The detection rate for the Jetstar Media LTD files collected here is 8%. Please read on for more details.
You will typically notice Jetstar Media LTD when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can also view the Jetstar Media LTD certificate with the following steps:
Here's a screenshot of a file digitally signed by Jetstar Media LTD:

As you can see in the screengrab above, Windows reports that "This digital signature is OK". This implies that the file has been published by Jetstar Media LTD and that the file has not been tampered with.
If you click the View Certificate button shown in the screenshot 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, etc. You can also view the address for Jetstar Media LTD, such as the street name, city and country.
COMODO RSA Code Signing CA has issued the Jetstar Media LTD certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Jetstar Media LTD files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 3/66 | netmedia.exe |
| 3/68 | checker.exe |
| 1/68 | updater.exe |
| 1/61 | updater.exe |
| 2/68 | updater.exe |
| 12/68 | Guard.exe |
| 13/66 | updater.exe |
Here is the detection names for the Jetstar Media LTD files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| Antiy-AVL | Trojan/Win32.TSGeneric |
| Avira | TR/CoinMiner.gpofd |
| DrWeb | Tool.BtcMine.1238, Trojan.Miner.3 |
| ESET-NOD32 | Win32/CoinMiner.AYL |
| Fortinet | W32/CoinMiner.AYL!tr |
| Ikarus | Trojan.Win32.CoinMiner |
| K7AntiVirus | Riskware ( 0040eff71 ) |
| K7GW | Riskware ( 0040eff71 ) |
| Kaspersky | not-a-virus:Downloader.Win32.Agent.kgmh |
| Malwarebytes | Adware.NetAdapter |
| McAfee | Artemis!0A60EE6810C1, Artemis!1C2C476E7453 |
| McAfee-GW-Edition | Artemis |
| Panda | PUP/Inetstat |
| Qihoo-360 | Win32/Trojan.Adware.37e |
| Symantec | Trojan.Gen.2 |
| TrendMicro-HouseCall | Suspicious_GEN.F47V1106, Suspicious_GEN.F47V1102, Suspicious_GEN.F47V0109, TROJ_GEN.R002H05AC18 |
| VBA32 | Downloader.Agent |
| VIPRE | Trojan-Downloader.Win32.Agent |
| Webroot | W32.Adware.Gen |
| ZoneAlarm | not-a-virus:Downloader.Win32.Agent.kgmh |
The detection percentage is based on that I have gathered 465 scan reports for the Jetstar Media LTD files. 35 of these scan results came up with some sort of detection. If you like, you can review the full details of the scan results by examining the files listed above.
The analysis has been done on certificates with the following serial numbers: