Security Monitoring Change Log May 2019

  • Updated Task Scheduler Creation Rule
  • Updated Service Creation on DC Rule
  • Disabled alert rule for Batch Logon. There is a report that is capturing this. The rule is still present and can be enabled.
  • Created override for Local Account Creation rules for domain controllers. While this didn’t appear in any testing, I was told that some security software can generate false positives for this one on domain controllers. Since DCs don’t have local accounts to begin with, I simply turned this off for domain controllers.
  • Fixed a bug with regsvr32 remote registration of DLL rule.
  • Added rules/discoveries associated with writeable locations in the OS. Note that there are three parts to this series.
  • Added rule to detect attempt to kill windows defender.
  • Added collection rule and report for TLS usage.
  • Added rules for suspicious PowerShell Usage.  For instructions on overrides, please see the addendum.
  • Removed dependency on SQL MP.
  • Added rule for WMI Persistence.
  • Added rules for WMI Remoting.
  • Distributed application
  • Added a timeout as an overridable parameter to the SMB1 collection rule. The specified timeout of 60 seconds was causing failures in my lab. I upped this value to 300 seconds as the default setting.
  • Turned off registry monitor for WDigest settings. This was not needed in Server 2012/2016. With Server 2008 going out of support, I’ve disabled the monitor. It is still present if someone desires to use it. 

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