Did you just run into a file that has been digitally signed by TEFINCOM S.A.? If that's the case, please read on.
You will probably see TEFINCOM S.A. 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 also view the TEFINCOM S.A. certificate with the following procedure:
Here's a screenshot of a file digitally signed by TEFINCOM S.A.:
As you can see in the screenshot above, Windows reports that "This digital signature is OK". This means that the file has been published by TEFINCOM S.A. 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 TEFINCOM S.A., such as the street name, city and country.
GlobalSign Extended Validation CodeSigning CA - SHA256 - G3 has issued the TEFINCOM S.A. 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 TEFINCOM S.A. files I've gathered, thanks to the FreeFixer users.
Detection Ratio | File Name |
---|---|
7/69 | nssm.exe |
7/70 | nssm.exe |
0/68 | nordlwf.sys |
0/68 | ndivert.sys |
0/69 | ndivert.sys |
0/71 | NordVPN.exe |
0/70 | nordvpn-service.exe |
Here's the detection names for the TEFINCOM S.A. files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
Scanner | Detection Names |
---|---|
AhnLab-V3 | Unwanted/Win32.NSSM.R353938, Unwanted/Win32.NSSM.C2787861 |
Antiy-AVL | RiskWare[RiskTool]/Win64.NSSM |
Cybereason | malicious.2aceb6, malicious.57305d |
DrWeb | Tool.InstSrv.10 |
Rising | HackTool.NSSM!1.CABB (CLOUD), HackTool.NSSM!1.CABB (CLASSIC) |
Yandex | Trojan.GenAsa!bPrxssdltbU, Riskware.NSSM! |
Zoner | Trojan.Win64.84488 |
The detection percentage is based on that I have collected 832 scan results for the TEFINCOM S.A. files. 14 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 is based on certificates with the following serial numbers:
Thanks for sharing such useful information,
because none of us ever notice this smallest thing and how much this thing matters.
# 8 Aug 2020, 1:20
Jennifer Sun Bell writes