Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

132 detections

Detects high-risk administrative actions in Entra ID, such as role assignments, user creation, or password resets, occurring shortly after a user authenticates using the device code flow. This pattern is indicative of a post-compromise takeover where an adversary utilizes a stolen or coerced device code session to escalate privileges.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
204
Detects unauthorized modifications to the Entra ID authentication methods policy or suspicious application activity often associated with the staging of rogue External Authentication Methods (EAM). Adversaries may exploit these configuration changes to intercept or bypass multi-factor authentication (MFA) during user login processes.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
203
Detects the creation of an application registered with a specific Microsoft external authentication provider URI, immediately followed by the configuration of its service principal with reply URLs pointing to external tunneling services like ngrok. This sequence is indicative of an attacker attempting to register a rogue MFA provider to intercept authentication requests.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
103
Detects the presence or execution of artifacts associated with the TrustSink proof-of-concept (deploy.py, cleanup_eam.py, deploy_state.json), which is used to register or remove rogue Entra authentication providers.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
000
Detects potential post-authentication persistent actions (e.g., OAuth app grants, MFA changes, mailbox rule updates) performed shortly after a successful Google Workspace login, specifically flagging actions originating from IP addresses different from the login session to identify session hijacking or token replay (AiTM) activity. Includes suppression for known corporate IP ranges, trusted OAuth application consents, and recurring user behavior.
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Arnold Chan@slaz
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Hunters
1 month ago
007
Detects the creation of applications, service principals, or delegated permission grants in Entra ID where the initiating User-Agent string contains 'python-requests'. This pattern is often indicative of programmatic interaction with Microsoft Graph API using standard Python libraries, which may be associated with automated malicious registration chains or unauthorized application persistence.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
Detects the creation of an application or service principal followed quickly (within 1 hour) by a tenant-wide delegated permission grant scoped to 'AllPrincipals' with 'openid' and 'profile' permissions. This sequence is a known indicator of automated rogue Enterprise Application setup, often used in consent phishing or persistence campaigns.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
Detects high-velocity administrative activity performed by a single user account in Azure Active Directory, specifically focusing on account provisioning and role membership changes. The rule flags patterns such as password resets, enabling/disabling accounts, adding new users, and privilege escalation (e.g., granting Global Administrator roles), which are indicative of malicious post-compromise activity.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
305
Detects high-risk AWS IAM privilege escalation activities, such as attaching AdministratorAccess policies, creating new access keys, roles, or users, occurring shortly after a suspicious sign-in event (e.g., impossible travel or new device login with MFA) for the same principal.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects anomalous bursts of cloud secret or parameter retrieval API calls followed shortly by administrative actions that expose data or credentials (such as bucket policy changes or new key creation). This behavior is consistent with an adversary staging compromised credentials to exfiltrate data or maintain persistence.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
000
Detects when a Google Cloud Config Connector (KCC) Workload Identity-bound service account is granted overly permissive organization-level roles (roles/owner or roles/resourcemanager.organizationAdmin). This configuration deviates from the security best practice of using namespaced mode with per-namespace scoped identities, potentially allowing the KCC controller to gain broader access than required, which is a known attack vector for privilege escalation.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
001
Detects when a Google Cloud Config Connector (KCC) Workload Identity-bound service account is granted overly permissive organization-level roles (roles/owner or roles/resourcemanager.organizationAdmin). This configuration deviates from the security best practice of using namespaced mode with per-namespace scoped identities, potentially allowing the KCC controller to gain broader access than required, which is a known attack vector for privilege escalation.
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Arnold Chan@slaz
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Hunters
1 month ago
001
Detects when a Google Cloud Config Connector (KCC) Workload Identity-bound service account is granted overly permissive organization-level roles (roles/owner or roles/resourcemanager.organizationAdmin). This configuration deviates from the security best practice of using namespaced mode with per-namespace scoped identities, potentially allowing the KCC controller to gain broader access than required, which is a known attack vector for privilege escalation.
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Arnold Chan@slaz
Defender - KQL
1 month ago
001
Detects when a Google Cloud Config Connector (KCC) Workload Identity-bound service account is granted overly permissive organization-level roles (roles/owner or roles/resourcemanager.organizationAdmin). This configuration deviates from the security best practice of using namespaced mode with per-namespace scoped identities, potentially allowing the KCC controller to gain broader access than required, which is a known attack vector for privilege escalation.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
001
Detects potential post-authentication persistent actions (e.g., OAuth app grants, MFA changes, mailbox rule updates) performed shortly after a successful Google Workspace login, specifically flagging actions originating from IP addresses different from the login session to identify session hijacking or token replay (AiTM) activity. Includes suppression for known corporate IP ranges, trusted OAuth application consents, and recurring user behavior.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
004
Detects a suspicious correlation between the registration of new authentication methods or application integrations and the subsequent modification of Conditional Access policies within a 2-hour window. This behavior is indicative of the activation phase of a TrustSink attack, where an adversary sets up a malicious MFA provider and forces its use by expanding Conditional Access policy scope.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects the scripted, non-human-paced registration of a rogue external authentication method by monitoring a sequence of specific Azure Audit Log operations (Add application, Add service principal, Add delegated permission grant) occurring within 60 seconds of each other by the same actor. The detection is further corroborated by analyzing Microsoft Graph Activity Logs for associated Python requests to specific Graph API URIs.
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Ankit Mehta@Secvyn
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Hunters
1 month ago
601
Detects the scripted, non-human-paced registration of a rogue external authentication method by monitoring a sequence of specific Azure Audit Log operations (Add application, Add service principal, Add delegated permission grant) occurring within 60 seconds of each other by the same actor. The detection is further corroborated by analyzing Microsoft Graph Activity Logs for associated Python requests to specific Graph API URIs.
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Ankit Mehta@Secvyn
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Detection & Hunting Community
1 month ago
101
Detects the scripted, non-human-paced registration of a rogue external authentication method by monitoring a sequence of specific Azure Audit Log operations (Add application, Add service principal, Add delegated permission grant) occurring within 60 seconds of each other by the same actor. The detection is further corroborated by analyzing Microsoft Graph Activity Logs for associated Python requests to specific Graph API URIs.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
101
This rule detects high-risk administrative operations in Azure Active Directory (such as role assignment, password resets, and account status changes) that occur within 3 hours of a user's sign-in. This pattern often indicates an account compromise followed by immediate privilege escalation or persistence establishment.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
003
Detects when a Google Cloud Config Connector (KCC) Workload Identity-bound service account is granted overly permissive organization-level roles (roles/owner or roles/resourcemanager.organizationAdmin). This configuration deviates from the security best practice of using namespaced mode with per-namespace scoped identities, potentially allowing the KCC controller to gain broader access than required, which is a known attack vector for privilege escalation.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
000
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