Everyone knows about
the computer virus and its effect. Almost everyone has faced the catastrophic effect
of virus. Sometimes virus attacks your system when antivirus is on. Here are
the few methods to know whether your system is infected or not.
PandaLabs has produced
a simple guide to the 10 most common symptoms of infection. Here I am sharing
this -
1. My
computer speaks to me.
There are all types of pop-ups and messages on
the desktop either advertising things, saying that the PC is infected and needs
protection… This is a typical, surefire case of an infection. There is either
spyware on the computer, or it has been infected by a fake antivirus (also
called “rogueware”).
2. My computer is running extremely slowly.
2. My computer is running extremely slowly.
This could be a symptom of many things, including
infection by a virus. If it has been infected by a virus, worm or Trojan, among
other things, which are running on the computer, they could be running tasks that
consume a lot of resources, making the system run more slowly than usual.
3. Applications won't start.
3. Applications won't start.
How
many times have you tried to run an application from the start menu or desktop
and nothing happens? Sometimes another program might even run. As in the
previous case, this could be another type of problem, but at the very least
it's a symptom that tells you that something is wrong.
4. I cannot connect to the Internet or it runs very slowly.
4. I cannot connect to the Internet or it runs very slowly.
Loss of Internet communication is another common
symptom of infection, although it could also be due to a problem with your
service provider or router. You might also have a connection that runs much
more slowly than usual. If you have been infected, the malware could be
connecting to a URL or opening separate connection sessions, thereby reducing
your available bandwidth or making it practically impossible to use the
Internet.
5. When I connect to the Internet, all types of windows open or the browser displays pages I have not requested.
5. When I connect to the Internet, all types of windows open or the browser displays pages I have not requested.
This is another certain sign of infection. Many
threats are designed to redirect traffic to certain websites against the user’s
will, and can even spoof Web pages, making you think you are on a legitimate
site when really you have been taken to a malicious imitation.
6. Where have my files gone?
6. Where have my files gone?
Hopefully
nobody will be asking this type of question, although there are still some
threats around designed to delete or encrypt information, to move documents
from one place to another- If you find yourself in this situation, you really
ought to start worrying.
7. My antivirus has disappeared, my firewall is disabled.
7. My antivirus has disappeared, my firewall is disabled.
Another
typical characteristic of many threats is that they disable security systems
installed on computers. Perhaps if one thing shuts down it might just be a
specific software failure; but if all your security components are disabled,
you are almost certainly infected.
8.My computer is speaking a strange language.
8.My computer is speaking a strange language.
If the language of certain applications changes, the
screen appears back-to-front, strange insects start ‘eating’ the desktop... you
might just have an infected system.
9. Library files for running games, programs, etc. have disappeared from my computer.
9. Library files for running games, programs, etc. have disappeared from my computer.
Once
again, this could be a sign of infection, although it could also be down to
incomplete or incorrect installation of programs.
10. My computer has gone mad... literally.
10. My computer has gone mad... literally.
If the computer starts acting on its own, you suddenly
find your system has been sending emails without your knowledge, Internet
sessions or applications open sporadically on their own - your system could be
compromised by malware.
Still i am recommending you to have an updated antivirus all-time
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