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So my step-daughter downloaded and installed a very nasty virus on my computer. Yes, she knows about not downloading strange software from strangers... this one was mass spammed from her uncle who himself was infected.
The short question is this:
Can quanrantined files be unquarantined through the use of a registry repair tool? How are "quarantined files" treated exactly and what makes them so safe from being tampered with or used again?
The thing was nasty enough that my PC-Cillin could not detect or get rid of it. At that point I installed NOD32 which did not seem to work either so I did a system restore and re-installed NOD32 just to be safe (I've heard it to be superior to what I had anyway). Things being fresh out of the box again (save for all my software that worked perfectly) I ran Registry Mechanic which found a bunch of errors. Later on I noticed that NOD32 did log two of the suspicious files which I tried to get rid of and listed them as quarantined, but I don't know if that was before or after the system restore. I'm wondering if my tampering with the registry could have un-quanrantined the said files.
No matter what you do with the registry, it will not "un-quarantine" anything that NOD32 have detected. All quarantined files it detects will be stored in your filesystem, with new extensions etc. preventing them from ever being executed. The same thing will hold true for most AV's.
You should be very careful using system restore if you suspect your PC have been infected though, as if you were infected at the time the restore point was created, there's a significant chance that the virus will be restored as well when using it.
EDIT: It would also be worth asking if you are sure that the virus you are talking about is in fact a virus, and not some form of spyware or adware? Because if so, you should also scan the PC with an appropriate application created for just such a task.
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You should be very careful using system restore if you suspect your PC have been infected though, as if you were infected at the time the restore point was created, there's a significant chance that the virus will be restored as well when using it.
EDIT: It would also be worth asking if you are sure that the virus you are talking about is in fact a virus, and not some form of spyware or adware? Because if so, you should also scan the PC with an appropriate application created for just such a task.
Some alternatives in this category that I'd recommend are:
- SUPERAntiSpyware
- a-squared Free