Did you just run into a file that has been digitally signed by ESTsoft Corp.? If that's the case, please read on.
You will probably see ESTsoft Corp. 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 ESTsoft Corp. certificate with the following steps:
Here's a screenshot of a file that has been signed by ESTsoft Corp.:
As you can see in the screenshot above, Windows reports that "This digital signature is OK". This implies that the file has been published by ESTsoft Corp. 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 see the address for ESTsoft Corp., such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the ESTsoft Corp. certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the ESTsoft Corp. files I have gathered, thanks to the FreeFixer users.
Detection Ratio | File Name |
---|---|
1/43 | ALCMUpdate.exe |
0/54 | bootalyac.exe |
0/49 | ALSTSCollector.exe |
0/54 | AYRTSrv.aye |
0/55 | bootalyac.exe |
0/55 | AesAgent.aye |
0/46 | estrtw.sys |
0/54 | estcst.sys |
0/55 | AYLaunch.exe |
0/57 | AesService.aye |
0/46 | bootalyac.exe |
Here is the detection names for the ESTsoft Corp. files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
Scanner | Detection Names |
---|---|
ByteHero | Trojan.Malware.Win32.xPack.m |
The detection percentage is based on the fact that I've gathered 3889 scan reports for the ESTsoft Corp. files. 1 of these scan results came up with some sort of detection. You can review the full details of the scan reports by examining the files listed above.
The analysis is done on certificates with the following serial numbers: