Azure Sentinel
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Identify email exfiltration conducted by PowerShell.
This rule detects when the ASR rule AsrRansomwareBlocked or AsrRansomwareAudited is triggered.
No alert is generated by default. This could be the start of a ransomware attack.
Additional information available by Microsoft:
https://docs.microsoft.com/microsoft-365/security/defender-endpoint/attack-surface-reduction-rules-reference?view=o365-worldwide#use-advanced-protection-against-ransomware
No alert is generated by default. This could be the start of a ransomware attack.
Additional information available by Microsoft:
https://docs.microsoft.com/microsoft-365/security/defender-endpoint/attack-surface-reduction-rules-reference?view=o365-worldwide#use-advanced-protection-against-ransomware
This query provides insights into AIR investigation actions in Microsoft Defender for Office 365.
This query visualises total emails with Malware detections over time summarizing the data daily by Delivery Location.
This query helps to find threats using display name impersonation for users not already protected with User Impersonation
This query uncovers seen IPAddressV4 network subnets
This query shows attempts to request Kerberos service ticket using the AS service, to monitor Kerberos AS authentications.
'Identifies where Privileged Accounts have updated passwords or security information. This is joined with UEBA alerts to filter to only those accounts with a high investigation priority.
Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#things-to-monitor'
Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#things-to-monitor'
'Identifies privileged accounts that have been locked out. Verify these lockout are due to legitimate user activity and not due to threat actors attempting to access the accounts.
Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#things-to-monitor'
Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#things-to-monitor'
'Identifies anomolies in signin events based on the volume of signin events over time. Use this to identify suspicious authentication patterns such as spikes in activity or out of hours events.
Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#things-to-monitor'
Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#things-to-monitor'
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