Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
3,865 detections
Filters
Last updated
All Time
Detection languages
2,524
525
299
218
131
Contributors
999
706
554
263
188
Categories
1,449
1,199
1,091
792
575
Platforms
39,934
7,265
6,535
3,865
3,645
Products / Services
1,755
1,449
1,121
438
406
MITRE Techniques
1,889
1,392
913
814
727
CVEs
12
5
4
3
2
IDS Classtypes
10
7
6
6
5
IDS Protocols
37
2
1
Detects the creation of multiple service principals with administrative or sensitive keywords in their names within a short timeframe, potentially indicating an attempt to establish persistence or escalate privileges in a cloud environment. The rule specifically looks for service principals containing 'admin', 'sync', 'backup', or 'audit' in their display names, created by users outside of Microsoft's internal domains.
Detects the creation of a new Global Administrator or Company Administrator account, which may occur after an attacker compromises an Intune administrator to establish persistence and cement full control over the tenant.
Detects the creation, alteration, or deletion of a SQL external model that could be used to establish a persistent exfiltration channel. Threat actors can leverage this to send data to an external server whenever a table is updated, particularly when combined with SQL triggers.
This rule identifies suspicious activity within Microsoft Intune by focusing on sensitive operations, broad assignments, and actions performed by API actors (Service Principals) without an associated human User Principal Name (UPN). It specifically looks for operations like creating, adding, assigning, or updating DeviceManagementScripts, DeviceShellScripts, Win32LobApp, DeviceConfiguration, DeviceCompliancePolicy, EndpointSecurity, SecurityBaseline, ConfigurationPolicies, or GroupPolicyConfigurations. The rule also flags broad assignments targeting 'All Devices', 'All Users', 'allDevices', or 'allLicensedUsers'. The primary goal is to detect potential abuse of over-permissioned Graph API applications by attackers to bypass MFA and deploy malicious Mobile Device Management (MDM) commands or configurations.
Detects assignment of highly privileged directory roles in Azure AD, including
Global Administrator and Privileged Role Administrator.
Global Administrator and Privileged Role Administrator.
Detects access to the Intune admin portal from devices that are not marked as compliant or lack a device ID. This may indicate potential credential theft, session replay from unmanaged infrastructure, or AiTM phishing proxies bypassing basic MFA.
Detects the creation of a new Global Administrator or Company Administrator account in Microsoft Entra ID (formerly Azure Active Directory). Adversaries may escalate privileges from compromised MDM administration roles (like Intune) to Entra ID Global Admin to cement full control over the tenant.
Detects API access to VPS providers for spinning up attack infrastructure
This rule detects potential 'impossible travel' scenarios within Azure AD sign-in logs. It identifies users who successfully sign in to Office 365 from two geographically distant IP addresses within a one-hour window, suggesting a potential compromise or an attempt to bypass security controls.
Detects when five or more user accounts are deleted within a one-hour period by a single user. This activity can indicate malicious intent to disrupt operations or cover tracks.
This rule detects potential SQL Injection attempts by monitoring IIS web server logs (W3CIISLog) for URI queries containing common SQL keywords such as 'union', 'select', or 'drop'. It aggregates these attempts by client IP address over one-hour intervals and flags any IP address with 5 or more such attempts within that hour.
Detects deletion of MFA configurations to enable authentication bypass
Detects when the same SessionId is used to sign in from more than one location across interactive and non-interactive sign-ins.
This rule detects a pattern indicative of password spraying or brute force attacks against user accounts. It identifies instances where a single user principal name (UPN) and IP address combination has at least 5 failed sign-in attempts and at least 1 successful sign-in attempt within a 30-minute window. This combination of failed and successful logins from the same source for the same user suggests an attacker successfully guessed a password after multiple attempts, or a password spraying attack where one of the sprayed passwords was correct.
This rule detects an abnormal volume of large file downloads or exports from cloud applications, excluding SharePoint, OneDrive, and Teams. It identifies instances where a single account downloads or exports more than 3 files with an average size greater than 10 MB within an hour from a specific application and IP address. This behavior could indicate data exfiltration or unauthorized data access.
Detects an unusually high volume (100 or more within an hour) of API calls (POST, DELETE, PUT methods to URIs containing 'api') originating from a single IP address. This activity could indicate various malicious behaviors such as brute-force attacks, credential stuffing, web application attacks, or a denial-of-service attempt against the API endpoint.
This rule detects a spike in modifications or creations of Azure Diagnostic Settings within a one-hour window. A high volume of 'Diagnostic Setting' operations by a single caller could indicate an attempt to alter logging configurations, potentially to impair defenses or hide malicious activity.
This rule detects when a single caller performs multiple (3 or more) retrievals of Azure Storage Account Keys within a one-hour window. This activity can indicate an attempt to gain unauthorized access to storage resources or exfiltrate data.
Flags Intune assignments to “All Devices” or “All Users,” which attackers may abuse for mass deployment.
This rule detects when a single caller performs multiple (3 or more) retrievals of Azure Storage Account Keys within a one-hour window. This activity can indicate an attempt to gain unauthorized access to storage resources or exfiltrate data.
This rule detects when a single caller successfully updates three or more SQL Server firewall rules within a one-hour window. This behavior could indicate an adversary attempting to open up network access to a SQL database, potentially for data exfiltration, command and control, or further lateral movement.
Page 125 of 185