Older Versions of the Yahoo! Toolbar may cause Internet Explorer to stop responding or unexpectedly close

December 24, 2010 by  
Filed under Security News

 

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft.

 

Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

 

SYMPTOMS

  • Internet Explorer has stopped working
  • Internet Explorer encountered a problem and needs to close

 

CAUSE

As a result of some changes made by Yahoo! older versions of the Yahoo! toolbar can cause Internet Explorer to stop responding or unexpectedly close.

 

RESOLUTION

To resolve this issue, Yahoo! and Microsoft recommend that you uninstall and reinstall the toolbar as follows:

 

Please have a pen and paper handy to write down the following information for your version of Windows and then perform those steps to resolve the issue on your computer:

 

For Windows XP

  1. Click Start, and then click Control Panel.
  2. Double-click  Add or Remove Programs.
  3. Scroll to and click Yahoo! Toolbar to select it, and then click Remove.
  4. Follow any confirmation prompts.
  5. Close Add or Remove Programs and then restart Internet Explorer to verify that the issue is resolved.
  6. To re-install the Yahoo! Toolbar to the latest version, please visit http://us.toolbar.yahoo.com/ and follow the steps on the website.

 

    For Windows 7 and Windows Vista

    1. Click Start, and then click Control Panel.
    2. Under Programs, click Uninstall a program.
    3. Scroll to and click Yahoo! Toolbar to select it, and then click Uninstall from the options above.
    4. Click Yes on the uninstall warning pop-up window.
    5. Close Uninstall a program and then restart Internet Explorer to verify that the issue is resolved.
    6. To re-install the Yahoo! Toolbar to the latest version, please visit http://us.toolbar.yahoo.com/ and follow the steps on the website.

     

     

     

    A swarm of Safari security holes: Mac and Windows users told to update

    June 9, 2010 by  
    Filed under Security News

    Whether you own a Windows or Mac OS X computer, if you’re a user of Apple’s Safari browser, it’s time to update your computer against a swarm of security vulnerabilities.

     

    With the attention of most Apple devotees diverted this week towards the sleek new iPhone 4, some may have missed that the Cupertino-based company has also issued a brand new version of its web browser, Safari.

     

    Most interestingly to us, however, is the news that Safari 5.0 not only includes new functionality, but also plugs at least 48 different security vulnerabilities that (if left unpatched) could be exploited by hackers.

     

    Mac OS X version 10.4 users (which Safari 5 doesn’t support) aren’t left in the lurch either. Apple has issued Safari version 4.1 for those customers, which addresses the same set of security issues.

     

    Read More…

     

    Microsoft to release emergency Internet Explorer patch on Tuesday

    March 29, 2010 by  
    Filed under Security News

    Microsoft has announced that it will be issuing an emergency out-of-band patch for a critical security hole in some versions of Internet Explorer on Tuesday 30 March.

     

    According to a Microsoft advisory, the emergency fix is designed to protect users of Internet Explorer 6 and Internet Explorer 7.

     

    Microsoft normally bundles its security updates into a monthly package, known in the industry as “Patch Tuesday” (the second Tuesday of each month), and it is relatively unusual for the company to issue a fix for a security vulnerability outside of this cycle. Clearly Microsoft considers the bug particularly important to patch as soon as possible.

     

    And in my opinion they’re right not to leave this vulnerability unpatched until April 13th. Earlier this month I described how hackers are actively exploiting the vulnerability, in their attempt to infect computers.

     

    The researchers in SophosLabs reported some of the malicious spam messages we have seen being distributed which attempt to trick users into visiting websites that will exploit the zero day vulnerability and infect Windows PCs.

     

    0806 spam1 Microsoft to release emergency Internet Explorer patch on Tuesday

    More information about the security flaw can be found in Sophos’s analysis of the problem.

     

    So, if you are still using Internet Explorer versions 6 or 7, please be sure to update your systems as soon as Microsoft releases the fix. But, in all honesty, what are you doing running such old versions of IE anyway? Shouldn’t you have upgraded to Internet Explorer 8 by now?

     

    By Graham Cluley, Sophos

     

     


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      0806 spam1 Protecting against the Internet Explorer zero day vulnerability

      Sophos detects the exploit scripts seen so far generically as Troj/ExpJS-R.

       

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      More information about the security flaw can be found in Sophos’s analysis of the problem.

       

      There’s no word yet on when Microsoft will make available a proper fix for this problem, or indeed whether it will be included in their next scheduled “Patch Tuesday” bundle of patches scheduled for April 13th or released as an out-of-bound fix.

       

      But I think it’s good that they gave the less geeky users of computers a fairly easy way to implement the workaround, rather than leaving them befuddled by complicated instructions.

       

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      German Government: Don’t use Internet Explorer

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      The German government has advised computer users not to run Internet Explorer and run an alternative browser instead, because of a critical zero-day security flaw.

       

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      The BSI advisory claims that although Microsoft’s advice to run Internet Explorer in ‘protected mode’ and disable Active Scripting makes it more difficult for hackers to attack, it does not completely prevent them.

      german ie advice German Government: Dont use Internet Explorer

      Here is a rough translation (courtesy of Google Translate) of the BSI statement:

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      Bonn, 15.01.2010.

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      Affected are the versions 6, 7, and 8 of Internet Explorer on Windows XP, Vista and Windows 7. Microsoft has published a security advisory, in which it discusses ways of minimizing risk and is already working on a patch for the security hole. The BSI expects that this vulnerability will be used in a short time for attacks on the Internet.

      Although running Internet Explorer in "protected mode" as well as disabling Acitve Scripting does make it more difficult to attack, it can not completely prevented. Therefore, the BSI recommends that users switch to an alternative browser while waiting for Microsoft's patch.

      Once the vulnerability has been closed, the BSI on its warning and information service MayorCERT also informed. Keep informed about the civic-CERT and the BSI warns citizens and small and medium enterprises from viruses, worms and vulnerabilities in computer applications. The expert analysis of the BSI around the clock, the security situation in the Internet and send alerts when action is needed and safety information via E-mail.

       

      The vulnerability means that a hacker could send you a message, perhaps pretending to be from a colleague or friend, and – if you clicked on a link in that email – your vulnerable installation of Internet Explorer would visit a malicious webpage infecting your Windows PC with a Trojan horse.

       

      At that point the hackers could effectively grab control of your computer, with the potential of stealing company secrets, personal information or using it to spread spam or other attacks. The problem is that right now Microsoft doesn’t have a patch to fix their software.

       

      Of course, the German government’s advice that internet users should switch to alternative browsers is unlikely to well received at Microsoft, and pressure is sure to grow on the company to release an “out-of-band” patch to resolve the security flaw as soon as possible.

       

      With Google pointing the finger of blame for the attacks at China, it’s perhaps not surprising that the German government should be keen to ensure that its own computers (whether they be in government or industry) are not next in the firing line of hackers.

       

      Alternative internet browsers such as Firefox, Safari and Opera have all suffered from security vulnerabilities in the past, of course.

       

      You can read SophosLabs’s write-up on the Microsoft security flaw here, as well as further commentary by principal virus researcher Vanja Svajcer.

       

      With all this talk about state-sponsored cyber-spying originating from China clearly spooking the German authorities, it’s perhaps a little ironic that the Germans themselves were accused of using the internet and malware to spy on another country a couple of years ago.

       

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      Microsoft Warns of IE Exploit Code in The Wild

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      070213 microsoft patch1 Microsoft Warns of IE Exploit Code in The Wild

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