Hello,
I just received my Comodo code signing certificate today, picked it up through my browser and exported it (with private key) to a .pfx file. I am able to sign Windows executables fine and when I run a .exe I see the proper publisher information as expected but I have not been able to load any 64-bit kernel drivers that I have signed. I am very confused as to which cross-certificate I need. The ones I have tried are successfully signed (no errors or warnings) but Windows 7 x64 continues to prompt me saying that Windows only supports signed drivers. During the ordering process from ksoftware I selected “SHA1” since it was recommended for signing drivers. I don’t know what’s going on here. I am using the following command to sign
signtool.exe sign /v /ac “AddTrust External CA Root.crt” /f MyCert.pfx /p XxX /tr Timestamp Server And Stamping Protocols | Sectigo® Official “c:\driver.sys”