ATA Archives - Flemming Riis's System Center Blog

Jul

Count your Domain Controllers Often and Always

Categories: Active Directory, AD, Advanced Threat Analytics, ATA, Security

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Had a talk the other day with a friend around domain controllers , we talked about how fast many orgs would actually detect a new domain controller , and if they did how fast

As this is a normal operation its not flagged by ATA , but it would be a very nice feature to add ( as far as i can see , this is a new install so no 30 days ML with admin behavior) , ATA should detect a admin logging on to a new server but need to test on a aged system

There is most likely a lot of eventlog hints of new domain controllers added need to examine for them also

Adding a new domain controller

We can see the new object as domain controller

Adding Domain Controllers Group to Sensitive Groups could h

So we could get a report like this if a DC was added could be a very good feature

Or list domain controllers not monitored by ATA

Detecting Domain Controllers being added

One method could be to use @LazyWinAdm

https://github.com/lazywinadmin/Monitor-ADGroupMembership

Running

.\Monitor-ADGroupMembership.ps1 -group “Domain Controllers” -Emailfrom [email protected] -Emailto “[email protected]” -EmailServer 10.0.0.51 –Verbose

on a rapid schedule

First run find the now 2 domain controllers

And we will now get a email alart when a new domain controller is added or removed

Jan

Thycotis Weak Password Finder and Microsoft Advanced Threat Analytics

Categories: Active Directory, Advanced Threat Analytics, ATA, Thycotic

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Thycotic made a free tool available to check for bad password in Active Directory

UNCOVER YOUR MOST VULNERABLE SECURITY GAPS: FREE WEAK PASSWORD FINDER FOR ACTIVE DIRECTORY

https://thycotic.com/solutions/free-it-tools/

If we dig into the about file

The core functionality of this product has been inspired by Jakob Heidelberg https://www.linkedin.com/in/heidelberg and developed by Michael Grafnetter https://www.linkedin.com/in/grafnetter.

We can see where the inspiration and development came from , and thank you to Thycotic for making this tool available for free

This is just a quick drill through with the detection from Advanced Threat Analytics

Running on a member server pointing to DC and Domain

Using the overpowered administrator i have logged on with

and ready to scan

Looking through all AD objects

And reporting time

Something very pretty to present to security/management

with 26 items on the todo list to fix

and to the point of the post , Microsoft Advanced Threat Analytics catches the non standard replication

When time permits further digging in the tool , for production enviroment i would always run this in a restored domain controller without network access even though i trust the people involved in this

Jan

MongoDB and Microsoft Advanced Threat Analyties and Secure by Default

Categories: Advanced Threat Analytics, ATA, MONGODB, Ransomware

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The last few days we seen very public attacks on unsecured MongoDB databases exposed directly to the internet

MongoDB ransom attacks soar, body count hits 27,000 in hours

http://www.theregister.co.uk/2017/01/09/mongodb/

and respons from MondoDB

https://www.mongodb.com/blog/post/how-to-avoid-a-malicious-attack-that-ransoms-your-data

These attacks are preventable with the extensive security protections built into MongoDB. You need to use these features correctly, and our security documentation will help you do so. Here are pointers to the relevant documentation and other useful resources:

and a reference to their securty manual on how to secure mongodb

So was looking on where we are using mongodb and found our Advanced Thread Analytics install , this isnt internet connected but a internal attack wiping the database could be bad enough so we looked

Local Host listener only

and doublecheck in the mongod config file

And the only acceptable result , secure by default , thx Microsoft and MongoDB

Aug

Updating ATA to version 1.7

Categories: Active Directory, ATA, Security

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Microsoft is keeping the fast pace with update to the star of their “classic” AD security solution

So we saw version 1.7 drop yesterday

New Major Features are

· Role based access control.

· Windows Server core support.

· Reconnaissance using Directory Services Enumeration detection.

· Pass-the-Ticket detections enhancements.

Unusual Protocol Implementation detection enhancements

Link : https://support.microsoft.com/en-us/kb/3185481

Personally we are looking fwd to RBAC its a major improvement for the majority of our customers and highly requested

Starting the install , we are upgrading fra 1.6.1 , we have a few enviroments on 1.4 and there is NO direct upgrade to 1.7

At upgrade we can either upgrade the whole database or do a partial migration , we opted for partial as having ATA offline for a longer duration wasnt a option , the database is placed on SSD so its unlikely it will take a day but we will test that in another enviroment

Sucess

New UX for updating agent and improved progress indicator

And we now have a few new security groups

This now means we can give auditors access to the enviroment without handing them the keys to the kingdom Smile

May

ATA 1.6 Unable to bind to the underlying transport , unable to access console

Categories: ATA, Microsoft Advanced Threat Analytics

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On a recent Advanced Threat Analytics 1.6 install we got

Event 15005 HTTPEVENT

Unable to bind to the underlying transport for xxx.xxx.xxx.xxx:5985. The IP Listen-Only list may contain a reference to an interface which may not exist on this machine. The data field contains the error number.

After reboot and was then unable to access the webconsole of the ATA Center Install

Workaround for now set World Wide Web Publishing to delayed automatic start

All posts in ATA

Count your Domain Controllers Often and Always

Thycotis Weak Password Finder and Microsoft Advanced Threat Analytics

MongoDB and Microsoft Advanced Threat Analyties and Secure by Default

MongoDB ransom attacks soar, body count hits 27,000 in hours

Updating ATA to version 1.7

ATA 1.6 Unable to bind to the underlying transport , unable to access console