Fiddler Ghost Certificates

3 posts, 1 answers
  1. Robert
    Robert avatar
    2 posts
    Member since:
    Jan 2015

    Posted 25 Jan 2015 Link to this post

    I installed Fiddler several months ago (Windows 7) and didn't use it much. I uninstalled it. In the last few days, my Trusteer app has been complaining that some websites I normally visit have a bad certificate.  I have searched all files and the registry on my computer and can't find any residual Fiddler files. I deleted the root and other certificates labeled "DO_NOT_TRUST ..." But, I'm still getting this error (see attached.) Same behavior in IE and Chrome. Something is stuck. Please advise how to remove and restore normal operation.

    Tia
  2. Answer
    Eric Lawrence
    Admin
    Eric Lawrence avatar
    833 posts

    Posted 27 Jan 2015 Link to this post

    Hello, Robert--

    The most likely explanation is that this isn't related to Fiddler at all, and instead something that you've downloaded installed malware like Browser Safeguard or GeniusBox and that is interfering with your browsing traffic.

    You may be able to find the malware using the Add/Remove Programs Control Panel. Alternatively, check your IE proxy settings to find out what port your proxy is set to, then look to see what process is running on that port (e.g. netstat -o) and then find the executable in question and kill it.

    Regards,
    Eric Lawrence
    Telerik
     

    Check out the Telerik Platform - the only platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native mobile apps.

     
  3. Robert
    Robert avatar
    2 posts
    Member since:
    Jan 2015

    Posted 27 Jan 2015 in reply to Eric Lawrence Link to this post

    Hi Eric

    I discovered that indeed, GenuisBox was installed. I try hard to avoid this kind of crap and I don't know how I missed it.

    I uninstalled it and Trusteer stopped complaining, so thanks for the tip.


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