Forum Discussion
SteBeSec
Jun 03, 2021Iron Contributor
Feature Request: Please make TVM Security Recommendations a bit smarter
Hello MDE Devs,
I noticed that the security recommendations in MDE are...let's say "not smart". To give you some examples:
- It is recommended that Bitlocker is enabled on virtual machines (VDIs). Why should someone enable Bitlocker on a machine that is virtual, hosted in a corporate owned datacenter and can't be stolen?
- The ASR Rule "Block credential stealing from the Windows local security authority subsystem" is recommended, even if Credential Guard is enabled on a machine. The article for the ASR Rule states that this rule is only useful if Credential Guard is not enabled: https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/attack-surface-reduction?view=o365-worldwide#block-credential-stealing-from-the-windows-local-security-authority-subsystem
- The ASR Rule "Block persistence through WMI event subscription" is recommended, even if the machine is using SCCM - you can't enbable this rule if SCCM is present on a machine (this would block SCCM Agent from functioning correctly). It is only useful if youre not co-managing devices and are only using Intune or another MDM: https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/attack-surface-reduction?view=o365-worldwide#block-persistence-through-wmi-event-subscription
All of the above could be easily detected by MDE, so my feeling about this is, that not much effort was put in the recommendations.
Could you please have a look into this? A lot of recommendations just doesn't make any sense.
Best regards
Stefan
SteBeSec I would recommend you to use the feedback option within the portal https://docs.microsoft.com/en-us/microsoft-365/security/defender/feedback?view=o365-worldwide
3 Replies
- Joe SternIron ContributorI'm using Credential Guard *and* the ASR rule to block credential theft. Having the defense in depth doesn't affect performance meaningfully and helps keep desktops covered in the event of TPM failure.
- ambarishrhIron Contributor
SteBeSec I would recommend you to use the feedback option within the portal https://docs.microsoft.com/en-us/microsoft-365/security/defender/feedback?view=o365-worldwide
- SteBeSecIron ContributorI‘ve added this already, but I would love to see more communication from Microsoft in this Community site. Unfortunately, it‘s silent most of the time - not a great Community experience.