Rudra Verma
@RudravermaTrusted contributorCompletionist
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This rule detects when a device wipe or delete operation is performed via Microsoft Intune. It specifically looks for 'wipe ManagedDevice' or 'Delete ManagedDevice' operations in Intune audit logs within the last 24 hours. The rule is designed to be correlated with other alerts by filtering on a specific ActorUPN, indicating a potential malicious mass device wipe attack.
This rule detects suspicious device enrollment attempts via Microsoft Intune Company Portal from a country not previously observed in a user's 7-day sign-in history. It identifies two primary patterns: sustained successful sign-ins from a new country, indicating a potential active session and successful device enrollment (High Severity), or Conditional Access Policy (CAP) blocked attempts from a new country, suggesting an attacker probing with stolen credentials (Medium Severity). The detection aims to identify identity theft leading to unauthorized device enrollment.
This rule detects suspicious sign-in activity for a specific user principal name (UPN) within the last 7 days, immediately preceding a device wipe event. It focuses on identifying the actor's initial access or activity before initiating a mass device wipe.
This rule detects the assignment of highly privileged roles such as 'Global Administrator', 'Intune Administrator', or 'Cloud Device Administrator' within Azure Active Directory. This activity is often a precursor to significant malicious actions, including mass device wipes, as highlighted by the referenced threat intelligence. Monitoring these assignments helps identify potential privilege escalation or unauthorized administrative access.
This rule detects the creation of scheduled tasks (`schtasks.exe /create`) where the command line arguments contain suspicious executables or paths commonly associated with malicious activity. This indicates a potential persistence mechanism being established by an adversary.
This rule detects potential port scanning activity from a single host. It identifies scenarios where a device attempts to connect to a large number of unique remote ports (20 or more) or a large number of unique remote IP addresses (25 or more) within a 10-minute window. This behavior is indicative of an adversary attempting to discover open ports or active hosts on a network.
This rule detects a high volume of Azure resource deletions by a single user within a short timeframe (30 minutes). This behavior is indicative of a destructive attack or wiper activity, where an adversary attempts to delete critical cloud infrastructure to disrupt operations or cause data loss. The rule specifically looks for 'delete' operations that were successful and counts them per caller and IP address, triggering an alert if the count exceeds a defined threshold.
This rule detects anomalous mass device wipe or deletion activity in Microsoft Intune by comparing current activity against an actor's historical behavior. It identifies four patterns: first-time wipers with high volume, known actors statistically far above their norm (Z-score), thin-history actors exceeding their personal peak, and time-compressed bursts of wipes. The rule calculates a severity based on the volume and rate of wipes.
This rule detects when a device wipe or delete operation is performed via Microsoft Intune. It specifically looks for 'wipe ManagedDevice' or 'Delete ManagedDevice' operations in Intune audit logs within the last 24 hours. The rule is designed to be correlated with other alerts by filtering on a specific ActorUPN, indicating a potential malicious mass device wipe attack.
This rule detects the assignment of highly privileged roles such as 'Global Administrator', 'Intune Administrator', or 'Cloud Device Administrator' within Azure Active Directory. This activity is often a precursor to significant malicious actions, including mass device wipes, as highlighted by the referenced threat intelligence. Monitoring these assignments helps identify potential privilege escalation or unauthorized administrative access.
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