<p></p> <p>Is your computer acting weird? Are boxes popping up
on your screen telling you that your computer is infected? Are
you hearing strange sounds?</p> <p>Your computer <a alt="((CONLI
NK|2947|may%20have%20been%20infected%20with%20malware))"
href="">may have been infected with malware</a> .</p> <p>It's
not always easy to determine whether or not your computer has
been infected with a <a
alt="((CONLINK|6638|virus,%20worm,%20Trojan%20or%20spyware))"
href="">virus, worm, Trojan or spyware</a> , because authors of
malicious software do their best to disguise their work. But
there are some symptoms that could help you figure it out.</p>
<p>Here are six signs that indicate your computer may be
infected, according to Tim Armstrong, malware researcher at
Moscow's Kaspersky Lab. Click on "next" in the upper right of
this page to continue.</p> <p></p>  <strong>Unexpected pop-up
windows</strong>  <p>, such as <a
alt="((CONLINK|6687|fake%20virus%20warnings))" href="">fake
virus warnings</a> telling you that you have