Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects high-privilege IAM role assignments in Google Cloud Platform and Microsoft Azure environments. The rule specifically monitors for assignments of overly permissive roles (e.g., Owner, Global Administrator, or wildcard actions) that could allow for full environment compromise or persistence.
Detects the deployment of virtual machines with public IP addresses (in Azure) or compute instances with external IP addresses (in GCP) by a single principal within a 15-minute window. This behavior is indicative of a newly-privileged identity or an compromised account establishing externally-accessible infrastructure for further malicious activity.
Detects potential abuse of Cloud Shell to persist access in cloud environments. For GCP, it monitors the injection of SSH keys into instance or project metadata from a Cloud Shell session. For Azure, it detects a pattern involving Cloud Shell storage provisioning followed by a subsequent VM run-command or SSH public key update, indicating potential unauthorized management of virtual machines.
Detects the creation of new service principal credentials in Azure AD or GCP service account keys targeting identities holding highly privileged administrative roles. This behavior is indicative of a persistence mechanism where an adversary establishes long-term access to a cloud environment by creating new, controlled credentials for an existing privileged identity.
Detects instances where a user has consented to an OAuth application that requests high-privilege Microsoft Graph scopes (Directory.Read.All, User.Read.All, Mail.Read). This pattern is indicative of consent phishing attacks where adversaries trick users into granting applications excessive permissions, bypassing administrative consent workflows when tenant configurations allow user-level consent.
Detects the assignment of high-privilege application permissions (e.g., Mail.ReadWrite, full_access_as_app, Files.ReadWrite.All, Sites.FullControl.All) to a service principal. This pattern is indicative of an attacker who has compromised an Application Administrator account and is attempting to establish long-term, unattended access to cloud resources such as mailboxes and SharePoint sites via OAuth client-credential flows.
Detects when a user is added as an owner to an Azure AD Application or Service Principal, specifically highlighting instances where the new owner does not currently hold a privileged directory role. This pattern is often used as a persistence mechanism to maintain long-term access to an environment without requiring high-level administrative credentials.
Detects when a Service Principal is assigned to a highly privileged administrative role in Azure Active Directory (Entra ID). This activity can be an indicator of an adversary establishing persistence or escalating privileges by leveraging non-human identities.
This rule detects unscheduled modifications to federation, application, or service principal credentials, including ADFS token-signing certificates, in both Azure AD (via O365 management activity logs) and local Windows environments (via Security Event Logs). It filters these events against a known rotation schedule to highlight suspicious, non-routine changes that may indicate persistence establishment or identity provider tampering.
This rule detects when new credentials (secrets or certificates) are added to an Azure Active Directory Service Principal. It flags this activity as suspicious if it occurs outside of typical business hours or if it exhibits signs of 'rapid re-keying', where multiple credentials are added to the same service principal within a 24-hour window. This behavior is a common indicator of persistence maintenance or credential rotation to support unauthorized access.
Detects a sequence where an OAuth application is granted 'Mail.ReadWrite' or 'MailboxSettings.ReadWrite' permissions, followed shortly thereafter (within 4 hours) by the creation or modification of an Inbox Rule by that same application within the same mailbox. This pattern is indicative of a persistence mechanism where an adversary uses elevated OAuth permissions to manipulate mailbox mail flow rules for stealth or exfiltration.
This rule monitors Office 365 management logs for device registration or join events in Azure Active Directory where the resulting device state is flagged as both non-compliant and unmanaged, despite having a 'Workplace' or 'AzureAd' trust type. It further aggregates these events by user to identify potential suspicious patterns, such as bulk registrations or rapid activity within a 30-minute window, which may indicate account compromise or unauthorized device enrollment.
Detects OAuth2 permission consent events where a user grants a third-party or newly registered application access to high-risk scopes (such as Mail, Files, or Directory). This technique is commonly used to establish persistence and bypass MFA by gaining access to user accounts via malicious or compromised OAuth applications.
Detects mass-phishing consent campaigns by monitoring non-admin users consenting to multi-tenant or unverified-publisher applications requesting non-basic-profile OAuth scopes. The rule aggregates multiple consent events for the same application over a 1-hour window to identify potentially malicious consent-phishing activity.
Detects OAuth2 permission consent events where a user grants a third-party or newly registered application access to high-risk scopes (such as Mail, Files, or Directory). This technique is commonly used to establish persistence and bypass MFA by gaining access to user accounts via malicious or compromised OAuth applications.
Detects OAuth2 permission consent events where a user grants a third-party or newly registered application access to high-risk scopes (such as Mail, Files, or Directory). This technique is commonly used to establish persistence and bypass MFA by gaining access to user accounts via malicious or compromised OAuth applications.
Detects the addition of suspicious redirect URIs, such as those containing wildcards, non-HTTPS protocols, or known URL-shortening services, to an OAuth application registration. Such configurations can be exploited by attackers to perform OAuth authorization code or token interception (e.g., through adversary-controlled endpoints).
This rule detects modifications to AWS CloudTrail configurations that reduce logging visibility, such as stopping the logging service, deleting a trail, or updating a trail to include restrictive event selectors (e.g., non-multi-region, read-only events, or excluding management events). These actions are indicative of an attacker attempting to evade detection by limiting the audit trail available to security analysts.
Detects suspicious modifications to Google Cloud Platform compute instance metadata, specifically the enabling of serial ports or the addition of startup scripts, which can be leveraged to execute arbitrary commands on a virtual machine. This rule also monitors for the initiation of GCP Cloud Shell environments, which may be used as a platform for further administrative activity.
Detects modifications to application secrets or certificates in Azure that are performed by a user who is not the registered owner of the application, or when a new credential is added to an application that already has credentials configured, potentially indicating persistent access establishment.
This rule detects administrative actions in GCP that involve modifying or deleting Cloud Logging sinks, or disabling specific services, with a specific focus on disabling the logging service itself. Adversaries may perform these actions to tamper with audit trails and evade detection of malicious activities.
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