Backdoor Graybird Keygen

Hey all, I'm running Windows 7 and am using Norton as my anti-malware. Every time I boot my PC Norton pops up with a detection of 'backdoor.graybird' but no action can be taken and it suggest to eject drive H (which is a virtual drive that I created using Daemon Tools). This occurred directly after I installed a program that I needed to mount using Daemon Tools. So the first thing I did was unmount the program, then I uninstalled the program and rooted through my computer deleting all files related to that program, both the install files and the download files. However, the problem still persists. I've scanned with Malwarebytes, spybot S&D, and AVG, along with Norton obviously, and none of these scans found backdoor. Adobe Fireworks Cs6 Keygen. graybird.

The only time it shows up is when I boot my computer and norton immediately reports the trojan. Periodically when using my computer the Norton detection pop-up will appear reporting the same trojan, so, having tried everything in my power to remove it, I simply close the norton pop-up and continue on my work, only to have the pop-up appear again some time later or whenever I re-boot. I have not noticed any lack of performance on my machine as a result, but it is becoming very irritating to be interrupted by Norton's detection of this trojan and, of course, I am also concerned about having this trojan present on my computer.