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Spyware
 

Spyware

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    Spyware Spyware Presentation Transcript

    • SpyWare! IQxplorer
    • Agenda
      • Define SpyWare
      • Discuss methods used for spying
      • Focus on passive tracking methods
      • Demonstrate one passive method
      • Discuss prevention
      • Conclusions
    • SpyWare Definition
      • SpyWare is a general term used to describe software that performs certain behaviors such as advertising, collecting personal information, or changing the configuration of your computer, generally without appropriately obtaining your consent first.
      • http://www.microsoft.com/athome/security/spyware/spywarewhat.mspx
    • SpyWare Categories
      • Advertising (Passive)
        • Capture browsing history
        • Capture buying habits
      • Surveillance (Active)
        • Key loggers
        • System Monitors
    • SpyWare Statistics
      • 90% of all internet connected machines are infected
      • ~28 SpyWare traces on each machine
      • 1/3 infected with surveillance SpyWare
      • 80% of infections were cookies
    • Passive Tracking Methods
      • Web Beacons
      • Cookies deposits
    • Web Beacons
      • Also know as
        • Web Bugs
        • Clear GIFs
      • Allows destination to log page hits
      • Can be used in conjunction with cookies
    • Cookie Fields Parameter Description Name The name of the cookie. Value The value of the cookie. Expire The time the cookie expires. This is a Unix timestamp so is in number of seconds since the epoch. In other words, you'll most likely set this with the time() function plus the number of seconds before you want it to expire. Path The path on the server in which the cookie will be available. Domain The domain in which the cookie is available Secure When set to TRUE , the cookie will only be set if a secure connection exists. The default is FALSE . httponly When TRUE the cookie will be made accessible only through the HTTP protocol. Not supported on all browsers
    • Web Beacon w/Cookie Example: spywareWebBeaconCookieDeposit.html
      • <html>
      • <head>
      • <title>Web Beacon Cookie Deposit Example</title>
      • </head>
      • <body>
      • <h1><b>Web Beacon Cookie Deposit Example:</b></h1>
      • <hr />
      • <img src=&quot;http://www.cs.uccs.edu/~cdshort/serverWebBeacon.php&quot; alt=&quot;Picture&quot; width=&quot;0&quot; height =&quot;0&quot; border = &quot;0&quot; />
      • </body>
      • </html>
    • Server Code serverWebBeacon.php
      • <?php
      • if (!(isset($_COOKIE[&quot;SpyCookie&quot;]))){
      • setcookie(&quot;SpyCookie&quot;, &quot;ISpyOnYou&quot;, time()+3600);
      • }
      • ?>
      • <html>
      • <head>
      • <title>PHP Test</title>
      • </head>
      • <body>
      • <?php
      • $filename = 'cookieCapture.txt';
      • $today = date(&quot;D M j G:i:s T Y&quot;);
      • $Content = &quot;SpyCookie&quot; . &quot; : &quot; . &quot;$_COOKIE[SpyCookie]&quot; . &quot; : &quot; . &quot;$today &quot;;
      • if($handle = fopen($filename, 'a')){
      • fwrite($handle, $Content);
      • fclose($handle);
      • }
      • ?>
      • </body>
      • </html>
    • Cookie Capture File
      • [cdshort@windom public_html]$ cat cookieCapture.txt
      • SpyCookie : ISpyOnYou : Fri Dec 1 18:30:17 MST 2006
      • SpyCookie : ISpyOnYou : Fri Dec 1 18:30:38 MST 2006
      • [cdshort@windom public_html]$
    •  
    • Packet Capture
    • Conclusions
      • Browser settings can prevent cookie deposit
      • Be careful what you download
        • Don’t open the door willingly
      • The use of cookies is fundamental
        • The information provided is minimal
    • Questions?
    • References
      • http://www.php.net/manual/en/function.setcookie.php
      • http://cs.uccs.edu/~cs301/php/php.html
      • Tzu-Yen Wang, Shi-Jinn Horng, Ming-Yang Su, Chin-Hsiung Wu,Peng-Chu Wang and Wei-Zen Su. A Surveillance Spyware Detection System Based on Data Mining Methods. 2006 IEEE Congress on Evolutionary Computation.
      • http://www.allaboutcookies.org/web-beacons/
      • Wes Ames, Understanding Spyware: Risk and Response, 2004 IEEE IT Pro
      • http://www.microsoft.com/athome/security/spyware/spywarewhat.mspx
      • http://www.earthlink.net/about/press/pr_spyAudit/