CryptoWall 3.0 Ransomware – Ouch, It Hurts So Good…Get Out the Backup Tapes. You’ve Got Those Right?

Being the badass network admin that you are, you try to keep your servers up to date with all the latest Windows updates, you run antivirus on all your machines on your network and scan daily, you have made sure that none of your users have local admin rights to their machines so they can’t install any software, and so you think you are fairly well covered when it comes to viruses and spyware, well think again.

My company just got hit pretty hard with this new CryptoWall 3.0 virus. If you are unfamiliar with it, basically it encrypts any user accessible data on local and network shares that it has permissions to and holds it ransom for BitCoin payments. Continue reading “CryptoWall 3.0 Ransomware – Ouch, It Hurts So Good…Get Out the Backup Tapes. You’ve Got Those Right?”

Exchange 2010 OWA – Can’t Delete Messages

Out of nowhere today I rebooted my Exchange server (that has been up and running for several years without problems) then users could no longer delete their messages – they would just receive an unfriendly message stating that “An unexpected error occurred and your request could not be handled”. The event log showed the following error every couple of seconds:

Event 3, System.ServiceModel

WebHost failed to process a request.
 Sender Information: System.ServiceModel.ServiceHostingEnvironment+HostingManager/20974680
 Exception: System.ServiceModel.ServiceActivationException: The service '/EWS/Exchange.asmx' cannot be activated due to an exception during compilation.  The exception message is: The type initializer for 'Microsoft.Exchange.Services.Wcf.MessageInspectorManager' threw an exception.. ---> System.TypeInitializationException: The type initializer for 'Microsoft.Exchange.Services.Wcf.MessageInspectorManager' threw an exception. ---> System.InvalidOperationException: Unable to generate a temporary class (result=1).
 Continue reading "Exchange 2010 OWA – Can’t Delete Messages"