Did you just find a download or a file on your computer that is digitally signed by Garry Lachman? Some of the security products refers to the detected files as Win32/CoinMiner.AYL and Trojan.Win32.CoinMiner. The detection rate for the Garry Lachman files collected here is 6%. Please read on for more details.
You will probably notice Garry Lachman when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the digital signature details for Garry Lachman with the following procedure:
Here's a screenshot of a file signed by Garry Lachman:

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 Garry Lachman 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, and so on. You can also view the address for Garry Lachman, such as the street name, city and country.
COMODO RSA Code Signing CA has issued the Garry Lachman certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screengrab above.
The following are the Garry Lachman files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 4/67 | Guard.exe |
Here's the detection names for the Garry Lachman files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ESET-NOD32 | Win32/CoinMiner.AYL |
| Ikarus | Trojan.Win32.CoinMiner |
| TrendMicro-HouseCall | Suspicious_GEN.F47V0110 |
| Zillya | Adware.ELEXCRTD.Win32.11201 |
The detection percentage is based on the fact that I have collected 67 scan results for the Garry Lachman files. 4 of these scan reports came up with some sort of detection. 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: