Thsi morning, a popup claiming to be McAfee popped up and said that McAfee had detected an "Exploit" trojan, but couldn't remove it. It says that i need to change the permissions on a shared folder. This sounds dodgy. Is this a legitimate request. Or is it a trojan in itself? See attached error message screen shot.
That certainly looks like a genuine McAfee message, and the reason given for non-removal makes sense. If McAfee requires access to a shared folder to delete a Trojan, then it's up to you whether to allow the access.
I would be looking first to the method of infection. Check your version of Java, and if it's not the latest (7u45) then you should upgrade.
That also looks like a System Restore or System Backup folder with that "VolumeShadowCopy" bit
As Brit says the detection is from \Device\HardDisk\VolumeShadowCopy7\Users\xx\xx\xx...... is a system backup folder.
Make sure all the files & folders are hidden How to enable hidden files & folders. Go to the location and check the detected file, if present delete it manually
Perform a Quick Clean in McAfee.
The simply act of turning off System Restore temporarily should delete the offending restore point - if that is in fact a restore point and only you know that. Otherwise you can probably remove it in Safe Mode if it wont go in regular..