Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects modifications to domain federation settings in Azure Active Directory (Microsoft Entra ID), specifically when a domain is set to federated or when critical federation URLs (IssuerUri, ActiveLogOnUri, MetadataExchangeUri) are changed. Such modifications can indicate an attempt to establish malicious domain federation, allowing an adversary to authenticate as any user within the tenant.
Detects modifications to Microsoft Entra ID (formerly Azure AD) cross-tenant access settings. This rule alerts on changes that allow external tenants to interact with the environment, such as enabling inbound/outbound trusts, automatic redemption, or trusting MFA claims, which can be leveraged to establish persistence or facilitate lateral movement between tenants.
Detects modifications to Microsoft Entra ID (formerly Azure AD) cross-tenant access settings. This rule alerts on changes that allow external tenants to interact with the environment, such as enabling inbound/outbound trusts, automatic redemption, or trusting MFA claims, which can be leveraged to establish persistence or facilitate lateral movement between tenants.
Detects modifications to Microsoft Entra ID (formerly Azure AD) cross-tenant access settings. This rule alerts on changes that allow external tenants to interact with the environment, such as enabling inbound/outbound trusts, automatic redemption, or trusting MFA claims, which can be leveraged to establish persistence or facilitate lateral movement between tenants.
Detects modifications to Microsoft Entra ID (formerly Azure AD) cross-tenant access settings. This rule alerts on changes that allow external tenants to interact with the environment, such as enabling inbound/outbound trusts, automatic redemption, or trusting MFA claims, which can be leveraged to establish persistence or facilitate lateral movement between tenants.
Detects modifications to Microsoft Entra ID (formerly Azure AD) cross-tenant access settings. This rule alerts on changes that allow external tenants to interact with the environment, such as enabling inbound/outbound trusts, automatic redemption, or trusting MFA claims, which can be leveraged to establish persistence or facilitate lateral movement between tenants.
Detects modifications to Microsoft Entra ID (formerly Azure AD) Conditional Access policies that lower security posture. This includes disabling policies, switching them to report-only mode, removing Multi-Factor Authentication (MFA) or grant control requirements, or expanding exclusion lists to exempt users, groups, or locations from security controls. Such modifications are often indicative of an adversary attempting to maintain persistent access or bypass MFA requirements.
Detects modifications to federated domain authentication, identity provider trusts, or federation settings in cloud environments (e.g., Entra ID, Okta). Unauthorized changes to these configurations can be used to establish persistence, enable SAML token forgery, or bypass Multi-Factor Authentication (MFA).
Detects modifications to Microsoft Entra ID (formerly Azure AD) cross-tenant access settings. This rule alerts on changes that allow external tenants to interact with the environment, such as enabling inbound/outbound trusts, automatic redemption, or trusting MFA claims, which can be leveraged to establish persistence or facilitate lateral movement between tenants.
Detects 'PutBucketPolicy' API calls in AWS CloudTrail where the policy is modified to grant 'Allow' access to a wildcard ('*') or anonymous principal, without including restrictive conditional requirements such as VPC endpoints or organizational ID constraints. This behavior is a common precursor to data exfiltration from misconfigured S3 buckets.
Detects high-privilege IAM roles (roles/owner, roles/resourcemanager.organizationAdmin) being granted at the GCP organization level. This activity is indicative of the ConfigConfusion attack, where a low-privilege user exploits a Kubernetes ConfigConnector (KCC) controller's high-privilege service account to perform unauthorized IAM modifications.
Detects the addition or modification of federated domain trusts or identity provider settings within Entra ID. Such actions can be indicative of attackers establishing persistent access or implementing Golden SAML-style attacks by forging authentication assertions via a compromised or malicious identity trust.
This rule detects potential attempts to abuse a Trusted Domain Object (TDO) to traverse a one-way Active Directory trust. It identifies suspicious activities such as Kerberos ticket requests (AS-REQ/TGS-REQ) targeting trust accounts (inter-realm indicators) or DCSync-style replication requests targeting the TDO object to extract domain secrets.
Detects a privilege escalation technique where an attacker with application management permissions adds a credential to the 'Office 365 Exchange Online' service principal (SP). The attacker then leverages the SP's 'Domain.ReadWrite.All' permission to add or modify a federated domain, allowing them to forge tokens for any hybrid user.
This rule detects administrative changes to domain federation settings or domain authentication configurations within an Azure Active Directory (Microsoft Entra ID) environment. These modifications can be used to establish persistence or facilitate identity-based attacks, such as domain-wide impersonation, by altering how identities are authenticated.
Detects a privilege escalation technique where an attacker with application management permissions adds a credential to the 'Office 365 Exchange Online' service principal (SP). The attacker then leverages the SP's 'Domain.ReadWrite.All' permission to add or modify a federated domain, allowing them to forge tokens for any hybrid user.
Detects a privilege escalation technique where an attacker with application management permissions adds a credential to the 'Office 365 Exchange Online' service principal (SP). The attacker then leverages the SP's 'Domain.ReadWrite.All' permission to add or modify a federated domain, allowing them to forge tokens for any hybrid user.
Detects a privilege escalation technique where an attacker with application management permissions adds a credential to the 'Office 365 Exchange Online' service principal (SP). The attacker then leverages the SP's 'Domain.ReadWrite.All' permission to add or modify a federated domain, allowing them to forge tokens for any hybrid user.
Detects a successful Microsoft Entra audit event where a new partner tenant is added to cross-tenant access settings. This change impacts trust-related configuration and inter-tenant access policies, requiring validation against approved organizational changes.
This rule detects modifications or registrations of Pass-Through Authentication (PTA) agents and changes to federation settings within an identity tenant. Such actions can indicate an adversary attempting to establish persistence, bypass authentication mechanisms, or intercept credentials by manipulating the authentication infrastructure.
This rule detects modifications or registrations of Pass-Through Authentication (PTA) agents and changes to federation settings within an identity tenant. Such actions can indicate an adversary attempting to establish persistence, bypass authentication mechanisms, or intercept credentials by manipulating the authentication infrastructure.
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