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DNS Error (XP)

Discussion in 'General Security' started by dondari, Apr 15, 2008.

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  1. dondari

    dondari Thread Starter

    Joined:
    Apr 13, 2008
    Messages:
    12
    I have enabled program and component monitoring in my firewall (Norton). As a result, my computer prompts me when a program wants to use an unrecognized module to access the internet.

    Interestingly, when I'm browsing in IE 7 and I choose a favourite, the firewall prompts with a medium risk alert asking if I want to allow iexplore.exe's module c:\program files\adobe ...\pdfshell.dll to use the internet. I typically check the remote ip address and decide to block the traffic. At that point, all addresses entered into IE return a (suspicious) DNS error and my browser becomes useless. I can only get it working again if I delete IE's browsing history, and delete the contents of c:\documents and settings\<user>\local settings\temp and ...\temporary internet files.

    Actually I found a file under ...\temporary internet files called "dnserror[1]" and I suspect that it is the culprit. The code is:

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>

    <head>
    <link rel="stylesheet" type="text/css" href="ErrorPageTemplate.css" >

    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>Internet Explorer cannot display the webpage</title>

    <script src="errorPageStrings.js" language="javascript" type="text/javascript">
    </script>
    <script src="httpErrorPagesScripts.js" language="javascript" type="text/javascript">
    </script>
    </head>

    <body onLoad="javascript:initMoreInfo('infoBlockID');">

    <table width="730" cellpadding="0" cellspacing="0" border="0">

    <!-- Error title -->
    <tr>
    <td id="infoIconAlign" width="60" align="left" valign="top" rowspan="2">
    <img src="info_48.png" id="infoIcon" alt="Info icon">
    </td>
    <td id="mainTitleAlign" valign="middle" align="left" width="*">
    <h1 id="mainTitle">Internet Explorer cannot display the webpage</h1>
    </td>
    </tr>

    <tr>
    <!-- This row is for HTTP status code, as well as the divider-->
    <td id="errorCodeAlign" class="errorCodeAndDivider" align="right">&nbsp;
    <div class="divider"></div>
    </td>
    </tr>


    <!-- Error Body -->
    <tr>
    <td>
    &nbsp;
    </td>
    <td id="MostLikelyAlign" valign="top" align="left">
    <h3 id="likelyCauses">Most likely causes:</h3>
    <ul>
    <li id="causeNotConnected">You are not connected to the Internet.</li>
    <li id="causeSiteProblem">The website is encountering problems.</li>
    <li id="causeErrorInAddress">There might be a typing error in the address.</li>
    </ul>
    </td>
    </tr>

    <!-- What you can do -->
    <tr>
    <td>
    &nbsp;
    </td>
    <td id="whatToTryAlign" valign="top" align="left">
    <h2 id="whatToTry">What you can try:</h2>
    </td>
    </tr>

    <!-- Check Connection -->
    <tr>
    <td >
    &nbsp;
    </td>
    <td id="checkConnectionAlign" align="left" valign="middle">
    <h4>
    <table>
    <tr>
    <td valign="top">
    <img src="bullet.png" border="0" alt="" class="actionIcon">
    </td>
    <td valign="top">
    <a href="#" onclick="javascript:diagnoseConnection(); return false;"><ID id="diagnose">Diagnose Connection Problems</ID></a>
    </td>
    </tr>
    </table>
    </h4>
    </td>
    </tr>

    <!-- InfoBlock -->
    <tr>
    <td id="infoBlockAlign" align="right" valign="top">
    &nbsp;
    </td>
    <td id="moreInformationAlign" align="left" valign="middle">
    <h4>
    <table>
    <tr>
    <td valign="top">
    <a href="#" onclick="javascript:expandCollapse('infoBlockID', true); return false;"><img src="down.png" id="infoBlockIDImage" border="0" class="actionIcon" alt="More information"></a>
    </td>
    <td valign="top">
    <span id="moreInfoContainer"></span>
    <noscript><ID id="moreInformation">More information</ID></noscript>
    </td>
    </tr>
    </table>
    </h4>

    <div id="infoBlockID" class="infoBlock" style="display: none">
    <p>
    <ID id="errorExpl1">This problem can be caused by a variety of issues, including:</ID>
    <ul>
    <li id="errorExpl2">Internet connectivity has been lost.</li>
    <li id="errorExpl3">The website is temporarily unavailable.</li>
    <li id="errorExpl4">The Domain Name Server (DNS) is not reachable.</li>
    <li id="errorExpl5">The Domain Name Server (DNS) does not have a listing for the website's domain.</li>
    <li id="errorExpl6">If this is an HTTPS (secure) address, click Tools, click Internet Options, click Advanced, and check to be sure the SSL and TLS protocols are enabled under the security section.</li>
    </ul>
    </p>
    <p id="offlineUsers"><b>For offline users</b></p>
    <p id="viewSubscribedFeeds1">
    You can still view subscribed feeds and some recently viewed webpages.<br/>
    To view subscribed feeds
    <ol>
    <li id="viewSubscribedFeeds2">Click the Favorites Center button <img src="favcenter.png" border="0">, click Feeds, and then click the feed you want to view.</li>
    </ol>
    </p>
    <p id="viewRecentWebpages1">To view recently visited webpages (might not work on all pages)
    <ol>
    <li id="viewRecentWebpages2">Click Tools <img src="tools.png" border="0">, and then click Work Offline.</li>
    <li id="viewRecentWebpages3">Click the Favorites Center button <img src="favcenter.png" border="0">, click History, and then click the page you want to view.</li>
    </ol>
    </p>
    </div>
    </td>
    </tr>

    </table>

    </body>
    </html>

    Is this legit? I have 2 name brand virus checkers and they both come up clean. What kind of malware might this be?
     
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