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Signs of a computer Virus
Think you have a virus ?
Symptoms of worms and
trojan horse viruses in e-mail messages
When a computer virus infects e-mail messages or infects
other files on a computer, you may notice the following
•The infected file may make copies of itself. This behavior
may use up all the free space on the hard disk.
•A copy of the infected file may be sent to all the addresses
in an e-mail address list.
•The computer virus may reformat the hard disk. This
behavior will delete files and programs.
•The computer virus may install hidden programs, such as
pirated software. This pirated software may then be
distributed and sold from the computer.
•The computer virus may reduce security. This could
enable intruders to remotely access the computer or the
•You receive an e-mail message that has a strange
attachment. When you open the attachment, dialog boxes
appear, or a sudden degradation in system performance
•Someone tells you that they have recently received e-mail
messages from you that contained attached files that you
did not send. The files that are attached to the e-mail
messages have extensions such as .exe, .bat, .scr, and .vbs
If you think you have a virus, here is some information
on the topic. I have also removed viruses and malware
from hundreds of PCs and willing to share some
pointers. Give me a call at 553-4040 and I will work with
Webmaster David l. Matrisch
The following are some primary indicators that a computer may
be infected: •The computer runs slower than usual.
•The computer stops responding, or it locks up frequently.
•The computer crashes, and then it restarts every few minutes.
•The computer restarts on its own. Additionally, the computer
does not run as usual.
•Applications on the computer do not work correctly.
•Disks or disk drives are inaccessible.
•You cannot print items correctly.
•You see unusual error messages.
•You see distorted menus and dialog boxes.
•There is a double extension on an attachment that you recently
opened, such as a .jpg, .vbs, .gif, or .exe. extension.
•An antivirus program is disabled for no reason. Additionally, the
antivirus program cannot be restarted.
•An antivirus program cannot be installed on the computer, or the
antivirus program will not run.
•New icons appear on the desktop that you did not put there, or
the icons are not associated with any recently installed programs.
•Strange sounds or music plays from the speakers unexpectedly.
•A program disappears from the computer even though you did
not intentionally remove the program.
Note: These are common signs of infection. However, these signs
may also be caused by hardware or software problems that have
nothing to do with a computer virus. Unless you are very fimiliar
with the inner workings of on your computer, you cannot be
certain whether a computer is infected with a virus or not.