LDL707

The location that it says is "Email attachment" and then an address, subject, and time. It doesn't tell me any directory on my computer where I might find it, and I can't find it in any of my e-mail accounts.

I have a computer running Windows 10 Professional. I have Kaspersky Internet Security. I was recently alerted to a detection of HEUR.Trojan-Downloader.Script.Generic. When I tried to resolve it, the exclamation point icon turned to a spinning circle for about a second, and then went back to the exclamation point. KIS says that the detection was an e-mail attachment. I use Thunderbird on my desktop, and webmail for Gmail and Outlook. As far as I can tell, I never received an e-mail from the account that it claims the detection was found in. I never opened any unusual attachments. When I click on "Go To File", it takes me to "My Documents" and I find no file there that could be the detected virus. Please advise.