Azure Sentinel
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This query helps in reviewing top policies for user overrides (Allow/Block)
Microsoft has observed Bazacall using a renamed version of Rclone for data exfiltration.
'This hunting query identifies GitHub activites where a repo was changed from private to public that may be a sign of compromise.'
'Detects when a user has successfully authenticated to another Microsoft Entra ID tenant with an identity in your organization's tenant.
Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-user-accounts#monitoring-for-failed-unusual-sign-ins'
Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-user-accounts#monitoring-for-failed-unusual-sign-ins'
'Identifies accounts that have been locked out by smart lockout policies. Review this results for patterns that might suggest that a password spray is triggering these smart lockout events.
Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-user-accounts#monitoring-for-failed-unusual-sign-ins'
Ref : https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-user-accounts#monitoring-for-failed-unusual-sign-ins'
'Detects suspicious user agent strings used by crypto miners in proxy logs.'
'Detects changes to an applications sign out URL.
Look for any modifications to a sign out URL. Blank entries or entries to non-existent locations would stop a user from terminating a session.
Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-applications#logout-url-modified-or-removed'
Look for any modifications to a sign out URL. Blank entries or entries to non-existent locations would stop a user from terminating a session.
Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-applications#logout-url-modified-or-removed'
' This query will detect when an attempt is made to update an existing user and link it to an guest or external identity. These activities are unusual and such linking of external
identities should be investigated. In some cases you may see internal Entra ID sync accounts (Sync_) do this which may be benign'
identities should be investigated. In some cases you may see internal Entra ID sync accounts (Sync_) do this which may be benign'
'Identifies when a user account is enabled and then disabled within 10 minutes. This can be an indication of compromise and an adversary attempting to hide in the noise.'
'This query detects modification in the AdminSDHolder in the Active Directory which could indicate an attempt for persistence.
AdminSDHolder Modification is a persistence technique in which an attacker abuses the SDProp process in Active Directory to establish a persistent backdoor to Active Directory.
This query searches for the event id 5136 where the Object DN is AdminSDHolder.
Ref: https://attack.stealthbits.com/adminsdholder-modification-ad-persistence'
AdminSDHolder Modification is a persistence technique in which an attacker abuses the SDProp process in Active Directory to establish a persistent backdoor to Active Directory.
This query searches for the event id 5136 where the Object DN is AdminSDHolder.
Ref: https://attack.stealthbits.com/adminsdholder-modification-ad-persistence'
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