Remediating - Stop Weak Cipher Usage
Description Weak ciphers need to be disabled because they are susceptible to cracking and reduce the overall security posture of the organization. With this security assessment, Microsoft Defender for Identity detects network activities that are using weak ciphers as a misconfiguration or as a deliberate security downgrade. Under Exposed Identities it shows Protocol Kerberos and Cipher Rc4HMac. Attempted resolution: In AD - set "This account supports Kerberos AES 256 bit encryption". (and turned on 128 bit) It has been several days and the vulnerability is not clearing for any accounts. I also applied a GPO to all workstations: Policy Setting Network security: Configure encryption types allowed for Kerberos Enabled DES_CBC_CRC Disabled DES_CBC_MD5 Disabled RC4_HMAC_MD5 Disabled AES128_HMAC_SHA1 Enabled AES256_HMAC_SHA1 Enabled Future encryption types Enabled Any other suggestions?
Password recommendations
Hello DFI community ! I'm reviewing some Identity-related recommendations about accounts and passwords. Let's focus on the following: Remove the attribute 'password never expires' from accounts in your domain Manage accounts with passwords more than 180 days old Do not expire passwords Achieving these 3 recommendations at the same time in hybrid environment for all types of accounts (user account, service account) seems a bit challenging and counterintuitive. If we disable password rotation policies in AD DS and set passwords to not expire in the 365 org's settings, user accounts will show up in the recommendations #1 and #2 after a while...If we don't, then the #3 recommendation pops-up. How can we combine features such as Azure Identity Protection/Conditionnal Access, Password Protection, Managed Identities, s/gMSA accounts to make all this work ? I'm a bit confused...What am i missing ? Any help would be much appreciated.
Azure Advanced Threat Protection Sensor service terminated
Since applying June patches and Azure automatically updating the Azure Advanced Threat Protection Sensor, the service continues to bomb. Anyone else seeing this behavior? The Azure Advanced Threat Protection Sensor service terminated unexpectedly. It has done this 31 time(s). The following corrective action will be taken in 5000 milliseconds: Restart the service. App event Application: Microsoft.Tri.Sensor.exe Framework Version: v4.0.30319 Description: The process was terminated due to an unhandled exception. Exception Info: System.Net.Sockets.SocketException at System.Net.Sockets.Socket.EndReceive(System.IAsyncResult) at System.Net.Sockets.NetworkStream.EndRead(System.IAsyncResult) Exception Info: System.IO.IOException at System.Net.Sockets.NetworkStream.EndRead(System.IAsyncResult) at Microsoft.Tri.Infrastructure.TaskExtension.UnsafeAsyncCallback[[System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](System.IAsyncResult, System.Func`2<System.IAsyncResult,Int32>, Microsoft.Tri.Infrastructure.TaskCompletionSourceWithCancellation`1<Int32>) at System.Net.LazyAsyncResult.Complete(IntPtr) at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) at System.Net.ContextAwareResult.Complete(IntPtr) at System.Net.LazyAsyncResult.ProtectedInvokeCallback(System.Object, IntPtr) at System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32, UInt32, System.Threading.NativeOverlapped*) at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)DFI/DFE and IdentityQueryEvents DNS events
Should I expect to see any DNS query events from DFE endpoints in the IdentityQueryEvents schema table if I have DFI enabled? This doc - https://learn.microsoft.com/en-us/microsoft-365/security/defender/advanced-hunting-schema-tables?view=o365-worldwide#get-schema-information-in-the-security-center - states the IdentityQueryEvents schema is for "Queries for Active Directory objects, such as users, groups, devices, and domains", but I my understanding was DNS query events from DFE endpoints would show up in the DeviceNetworkEvents schema table.
