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Security in Context: The BeyondTrust Blog

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Bringing you news and commentary on solutions and strategies for protecting critical IT infrastructure in the context of your business.

Flame Malware Burns a Little Brighter

Posted June 5, 2012    Peter McCalister

Did you know that Microsoft’s Terminal Server Licensing Service (we’ll call it TSLS for convenience) generated certificates that could be used to sign code? No? Neither did Redmond. Flame leveraged a “0day” (zero day) within TSLS to sign its own code, allowing it to appear as if the code came from Microsoft. This allowed Flame to propagate itself in a network by fooling other machines into believing it was serving Windows Update packages, when in actuality, it was serving up Microsoft signed versions of Flame. More details follow… but first, here is some actionable intelligence:

What does this mean for you and your organization? Apply this fix (Bulletin, Patch) immediately. Unless the patch is applied, your machines may end up trusting malicious code. Retina provides detection for the vulnerable certificates via audit 16497 – Microsoft Revocation of Fraudulent Certificates (2718704).

Our original post (which goes into more detail) can be found at the eEye blog “Flame Malware Burns a Little Brighter”.

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Additional articles

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A Quick Look at MS14-068

Posted November 20, 2014    BeyondTrust Research Team

Microsoft recently released an out of band patch for Kerberos.  Taking a look at the Microsoft security bulletin, it seems like there is some kind of issue with Kerberos signatures related to tickets. Further information is available in the Microsoft SRD Blogpost So it looks like there is an issue with PAC signatures.  But what…

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Password Game Show

Managing Shared Accounts for Privileged Users: 5 Best Practices for Achieving Control and Accountability

Posted November 20, 2014    Scott Lang

How do organizations ensure accountability of shared privileged accounts to meet compliance and security requirements without impacting administrator productivity? Consider these five best practices…

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Triggering MS14-066

Triggering MS14-066

Posted November 17, 2014    BeyondTrust Research Team

Microsoft addressed CVE-2014-6321 this Patch Tuesday, which has been hyped as the next Heartbleed.  This vulnerability (actually at least 2 vulnerabilities) promises remote code execution in applications that use the SChannel Security Service Provider, such as Microsoft Internet Information Services (IIS). The details have been scarce.  Lets fix that. Looking at the bindiff of schannel.dll, we see a…

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