Saturday, December 10, 2011

Why does virus software quarantine some malware and delete others?

Would it damage anything if I deleted quarantined malware? I use McAfee and occasionally, Malwarebytes. Thanks.|||I got this from About.com I think it explains it very well.


If your antivirus encounters an infected file, there are generally three options available: clean, quarantine, or delete. If the wrong option is selected, the results can be catastrophic. And if it's a false positive, such a mishap can be even more frustrating and damaging.





As an example, if you instruct your antivirus software to delete all infected files, those that were infected by a true file infecting virus could also be deleted. This could impact the normal features and functionality of your operating system or programs you use. On the other hand, antivirus software can't 'clean' a worm or a trojan, because there is nothing to clean - the entire file IS the worm or trojan. Quarantine plays a nice middle ground, because it moves the file to safe storage under control of the antivirus program - so it can't harm your system - but it's there in case a mistake was made and you need to restore that file.

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