PSA: Microsoft Emergency Bulletin: Unauthorized Certificate used in "Flame"

Check your Windows updates.

Sources:

• https://technet.microsoft.com/en-us/security/advisory/2718704
• http://isc.sans.edu/diary/Microsoft+Emergency+Bulletin+Unauthorized+Certificate+used+in+Flame+/13366
• http://arstechnica.com/security/2012/06/flame-malware-was-signed-by-rogue-microsoft-certificate/