http://cw.nanako.moe/w/index.php?action=history&feed=atom&title=Computer_virus 2026-07-23T19:18:36Z Revision history for this page on the wiki MediaWiki 1.16.2 http://cw.nanako.moe/w/index.php?title=Computer_virus&diff=10968&oldid=prev 2011-10-05T09:52:29Z

<p></p> <table style="background-color: white; color:black;"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 09:52, 5 October 2011</td> </tr><tr><td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&lt;[#ontology [kind class] [cats Computing]]&gt;</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>&lt;[#ontology [kind class] [cats Computing]]&gt;</div></td></tr> <tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">{{Empty ontology}}</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>&#160;</div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">A '''computer virus''' is a [[malicious]] [[program]] designed as a (usually invalid) sequence of [[byte]]s within a [[file]] which exploits flaws in common programs, used to open that type of file, to run arbitrary code. That code would then contain two main parts: one part to [[infect]] other files and/or send infected files to other systems on a network through various protocols such as [[email]]; the other part to run some destructive or otherwise unwanted code on the infected machine. While many viruses are simply parts of other files, such as .jpg files ([[Microsoft Windows]]' native [[JPEG]] renderer had some bugs allowing arbitrary code to be run when invalid data was encountered), some are executable files in their own right, and the trick here is to socially engineer the user into running them.</ins></div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>&#160;</div></td></tr> <tr><td colspan="2">&nbsp;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Many less technically inclined people believe that viruses are unbeatable without the use of some expensive and CPU-hogging antivirus program. However, if code was written perfectly in the first place, there would not be any bugs for viruses to exploit, so viruses would simply not exist. In other words, viruses only exist because of [[human error]] in programming.</ins></div></td></tr> </table>

Keiji http://cw.nanako.moe/w/index.php?title=Computer_virus&diff=8409&oldid=prev 2011-02-12T12:44:35Z

<p>Created page with &quot;&lt;[#ontology [kind class] [cats Computing]]&gt; {{Empty ontology}}&quot;</p> <p><b>New page</b></p><div>&lt;[#ontology [kind class] [cats Computing]]&gt;<br /> {{Empty ontology}}</div>

Keiji