04-06-2012, 10:50 PM
Hi and welcome to M-F
First and foremost, i would uninstall the AV you have on your Mac.
What are these files that wont disappear from the trash ? Are they the so called virus files ?? Or are they files that are needed for the OS ? You need to be careful on what you are trashing because if you do trash a specific system file, you could render your Mac U/S and need to do a re-install of the OS.
I believe Sophos has been playing tricks on you. But uninstall it and then Repair Permissions via Disk Utility.
Open DU Applications/Utilities/Disk Utility
Make sure the First Aid tab is checked.
Click on your
HD in the left column and then click on Repair Permissions.
Log out and back in once done.
Don't worry about all the errors in the Log so when all done use spotlight to search for these so called Virus/thingy and report back.
Just a little info to read. Aprt from the scare lately that could get in via Java, where Apple has already done a update for it, there is no Virus for Mac in the wild.
Official antivirus, malware, and firewall FAQ