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By: Larry Marca What is Website Defacement? Website defacement is when a hacker compromises a web server and changes the data on the page. Causes businesses money and ... – PowerPoint PPT presentation

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Title: By: Larry Marca


1
Website Defacement
  • By Larry Marca

2
What is Website Defacement?
  • Website defacement is when a hacker compromises a
    web server and changes the data on the page.
  • Causes businesses money and customers
  • Occur constantly everyday

3
Motives for Defacing a Website
  • Motives
  • Social
  • Most common type of hacker, hack to gain peer
    acceptance, feeling of control
  • Technical
  • Hacking in order to assist
  • Political
  • Break into systems in order to get opinions
    heard strong political beliefs
  • Financial
  • Do it for individual gain

4
Reasons Why Your Website is Defaced
  • Incorrect protection of web pages, folders and
    applications is more common than correct
    protection
  • Incorrect web site configuration may be more
    frequent than most people would like to image

5
So How Does a Defacement Occur?
  • The hacker uses some means to gain entrance to a
    web server
  • He might overflow a buffer and insert some code
    which runs at a raised privilege to give him
    access
  • He might guess or steal a password to an
    administrator or highly privileged account
  • He may break a poorly secured application written
    in some language, placing some privileged program
    someplace on the server

6
How to Prevent Defacement
  • Guard web server with a good firewall
  • Follow good security practices on your network
  • Keep your system up-to-patch
  • Keep in touch with diverse security newsgroups,
    newsletters and other information so you know
    what vulnerabilities exist

7
Example of Website Defacement
8
  • A hackers' group said it had added its logo on
    the Web site of a lobbying group, the American
    Israel Public Affairs Committee.

9
References
  • AntiOnlineMaximum Security for a connected
    world. 03 Nov. 2003 lt http//www.antionline.com/
    fight-back/What_Is_A_Website_Defacement_And_What_D
    oes_It_Look_Like.phpgt.
  • etest associates-Website Defacement and Security
    Testing. etest associates (UK) ltd. 03 Nov. 2003
    lthttp//www.etest-associates.com/pressroom/pr_web
    site_defacement_artcl.htmgt
  • Hacker Notes-Web Site Defacement. 03 Nov. 2003
    lthttp//www.leave-me-alone.com/hackers_defacement.
    htmgt.
  • Wagner, James. Web Vandalism on the Rise. 22
    Oct 2002. 03 Nov. 2003 lthttp//www.internetnews.co
    m/dev-news/article.php/1485601gt.
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