Scan shows Trojan:Win32/Dynamer!ac after removal, should I be worried

Scan result of Farbar Recovery Scan Tool (FRST) (x64) Version:13-07-2015
Ran by Clare (administrator) on CLARE-HP on 15-07-2015 08:12:22
Running from C:\Users\Clare\Downloads
Loaded Profiles: Clare (Available Profiles: Clare)
Platform: Windows 7 Home Premium Service Pack 1 (X64) OS Language: English (United States)
Internet Explorer Version 11 (Default browser: IE)
Boot Mode: Normal
Tutorial for Farbar Recovery Scan Tool:...

Scan shows Trojan:Win32/Dynamer!ac after removal, should I be worried