if norton is working fine and uptodate with all latest virus definitions then how can my pc get virus?
2006-11-26 02:20:32 · 9 answers · asked by anish j 1 in Computers & Internet ➔ Security
In addition to having an anti virus, you have to practice safe surfing. This means no limewire, or clicking on email attachments, etc.
Anti virus companies like norton can only publish the signatures of virus that they know, and have calculated a defense against these viruses. New viruses in the wild (known as zero day attacks or exploits) will get right by them.
Also, the virus writers know that the majority of people use norton, so they specifically target ways around norton. This is why you dont hear a lot about apple viruses. Its not worth their time to write viruses for macs. Theres just not a lot of them out there for it to be worth anything to them. They want to have their 15 minutes of fame.
So, zero day viruses - there's no way to protect yourself other than safe computing. You might also want to do what I did and dump norton in favor of a lesser known anti virus program so you stay under the radar. I prefer Avast. It not only updates daily, but has a feature that protects your computer if something is happening that looks like virus activity...not just scanning the files against their virus signatures. Its free for home use (less the script protection) and I highly recommend it. Its a small program with only a few background tasks running. Norton is a CPU hog.
Now, removing all traces of Norton it not too easy. There are 3 or 4 items in the add/remove group. Search the norton site for full removal instructions prior to actually doing it.
Another really good free antivirus is AVG. You can find it easily. You can only have one AV running at a time.
Lastly, some spyware and trojans that are not truly virus, CAN install viruses. Make sure you also run anti spy and anti adware. Unlike AV and firewall, you can have multiple antispy and anti ad programs running.
Hope this helps.
2006-11-26 02:40:17 · answer #1 · answered by orlandobillybob 6 · 1⤊ 0⤋
2
2016-08-27 19:45:45 · answer #2 · answered by Elaine 3 · 0⤊ 0⤋
Several possibilities, but the biggest is that the Virus was new enough or talented enough to worm it's way around Norton. Keeping your anti-virus up to date is important, but sometimes the folks creating the virus's are faster than the guys trying to stop them.
2006-11-26 02:29:55 · answer #3 · answered by tjjone 5 · 1⤊ 0⤋
all those answere are correct but your biggest problem is your using norton I do computer repairs, thanks to norton Im bussy all the time norton is ok. But the best protection out there is mcafee.
I use mcafee to repair the sys that come to me with norton in it and its not uncommon for mcafee to find and repair 75 to 175 vir trojans and worms that norton even up to date cant touch. sorry to have to give u the bad news about norton. the free anti V are just as bad. Like anything else you get what u pay for in life. Good Luck.
2006-11-26 02:37:28 · answer #4 · answered by Anonymous · 0⤊ 0⤋
No anti-virus is 100% effective, it is possible you have a new virus that Nortons doesn't have a deffinition for yet.
try downloading AVG free from http://www.grisoft.com and running it in safe mode first, they may have the definition for it.
2006-11-26 02:25:41 · answer #5 · answered by Cailu 2 · 2⤊ 0⤋
A lot of the problem is the ad-ware /spy-ware . Download the free Ad-Aware SE and run that as well as your Norton.
2006-11-26 03:00:55 · answer #6 · answered by Anonymous · 0⤊ 0⤋
No anti-virus program is perfect. It is possible. Sorry.
2006-11-26 02:22:40 · answer #7 · answered by rlh242424 6 · 2⤊ 0⤋
Maybe your Internet Worm Protection is 'OFF' or if you want go to
www.appzplanet.com then search 'Spyware Doctor' download it with its crack file then scan....
2006-11-26 02:32:52 · answer #8 · answered by mr f 1 · 0⤊ 0⤋
from other people bad stuff that they send u
2006-11-26 02:24:09 · answer #9 · answered by Jodi 3 · 2⤊ 0⤋