Every other day or so, a virus or 2 reappears

I am using NIS 2012.  My computer has been running very slow with long boot and shutdowns.  A full aggressive scan by NIS and Malwarebytes showed no problems.  After a few days of this problem, I rebooted in Windows safe mode and did a scan with NIS and it detected over 40 worms, viruses, etc.  I cleaned it with NIS and did a full scan and it showed no virus.  I then did a scan in Windows safe mode and detected 3 more.  I removed them.  Now every other day or so, a virus or 2 reappears and is detected on when I do a full NIS scan in Windows safe mode.  It will not prevent or detect virus infections in normal Windows.

 

What is up with this?  How did these viruses get past NIS in the first place?  How can I clean and protect my system?

 

BurningErn


BurningErn wrote:
I am using NIS 2012.  My computer has been running very slow with long boot and shutdowns...After a few days of this problem, I rebooted in Windows safe mode and did a scan with NIS and it detected over 40 worms, viruses, etc.

Hi BurningEM:

 

bjm_ is correct, if these files detected during Safe Mode scans are compressed files (e.g., .exe, .cab, .msi, etc.) then they are false positives and should be recovered from quarantine as soon as possible.  See the section titled Restoring a File from Quarantine in Tony Weiss' post here for instructions.

 

Regarding the slow boot-up in NIS 2012, you might find your PC boots up faster if you change your Boot Time Protection from Off (the default for NIS 2012) to Normal or Aggressive.  From the main NIS 2012 window, click Settings | Computer | Real Time Protection | Enable Boot Time Protection and then change the setting to Normal or Aggressive.  This sounds counterintuitive, but the Symantec support article Enable Boot Time Protection here states:

      "When this option is set to Off, specified drivers and plug-ins start functioning only after a specified time delay."

and other users in the forum have found that loading NIS early in the boot-up process actually speeds the system startup.  See ferenzzz's post here in the thread NIS 2012 Very Slow While Starting Up PC for one example.

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Windows Vista Home Premium 32-bit SP2 * NIS 2011 v. 18.6.0.29 * IE 9.0 * Firefox 9.0.1
HP Pavilion dv6835ca, Intel Core2Duo CPU T5550 @ 1.83 GHz, 3.0 GB RAM, NVIDIA GeForce 8400M GS

Hello BurningErn

 

I would also change these settings down to 1 min.

 

Settings----General-----Norton Tasks----move the slider down to 1 minute. There are 3 things listed there. I have all of mine down to 1 minute. It helps to speed up a lot of things like how long it takes your computer to become idle to run the Idle Quick Scans as well as the other background tasts that are run. It will also quicken boot up time.

 

If you really do have a virus on your computer, that could account for the slowness.  You could always sign up with one of the free malware removal sittes and just ask them if your computer is clean or not. They will give you some scans to run and will work with you on a 1 to 1 basis. It could be the bug in  the scans while in safe mode. One of these other sites could give you a clean bill of health and then you would know for sure it is that bug. Just sign up and you just want to check and see if your computer is clean.

 

 

Please go to one of these free Forums for help in removing your bad malware or rootkits.


http://www.bleepingcomputer.com

http://www.geekstogo.com/forum/

http://www.cybertechhelp.com/forums/

http://forums.whatthetech.com/

(Thanks to Delph for providing the list of sites)

 

 

Please come back and let us know how you made out. Thanks.

I am using NIS 2012.  My computer has been running very slow with long boot and shutdowns.  A full aggressive scan by NIS and Malwarebytes showed no problems.  After a few days of this problem, I rebooted in Windows safe mode and did a scan with NIS and it detected over 40 worms, viruses, etc.  I cleaned it with NIS and did a full scan and it showed no virus.  I then did a scan in Windows safe mode and detected 3 more.  I removed them.  Now every other day or so, a virus or 2 reappears and is detected on when I do a full NIS scan in Windows safe mode.  It will not prevent or detect virus infections in normal Windows.

 

What is up with this?  How did these viruses get past NIS in the first place?  How can I clean and protect my system?

 

BurningErn