Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects instances where the Grafana MCP (Model Context Protocol) server's service account identity executes administrative tools (such as 'grafana_api_request') within a session that lacks a verified, prior authentication event (bearer token). This pattern suggests an adversary may be spoofing or hijacking a privileged service account session to perform unauthorized administrative actions.
This rule correlates Microsoft Entra ID (formerly Azure AD) identity risk events with sign-in activity and behavioral analytics for a specific user to facilitate forensic investigation of potential identity compromise. It aggregates risk events, anomalous sign-in attempts (including failures or failed conditional access), and suspicious behavioral telemetry from the same source IP addresses associated with identified user risk.
Detects instances where the Grafana MCP (Model Context Protocol) server's service account identity executes administrative tools (such as 'grafana_api_request') within a session that lacks a verified, prior authentication event (bearer token). This pattern suggests an adversary may be spoofing or hijacking a privileged service account session to perform unauthorized administrative actions.
Detects instances where the Grafana MCP (Model Context Protocol) server's service account identity executes administrative tools (such as 'grafana_api_request') within a session that lacks a verified, prior authentication event (bearer token). This pattern suggests an adversary may be spoofing or hijacking a privileged service account session to perform unauthorized administrative actions.
Detects instances where the Grafana MCP (Model Context Protocol) server's service account identity executes administrative tools (such as 'grafana_api_request') within a session that lacks a verified, prior authentication event (bearer token). This pattern suggests an adversary may be spoofing or hijacking a privileged service account session to perform unauthorized administrative actions.
Detects instances where the Grafana MCP (Model Context Protocol) server's service account identity executes administrative tools (such as 'grafana_api_request') within a session that lacks a verified, prior authentication event (bearer token). This pattern suggests an adversary may be spoofing or hijacking a privileged service account session to perform unauthorized administrative actions.
Detects sessions using shared Grafana service account tokens that perform both read-only and action-capable tool operations without confirmed prior authentication. This behavior is indicative of an unauthenticated or spoofed session leveraging a service account's excessive permissions, bypassing standard authentication flows.
Detects a single device requesting Entra ID access/refresh tokens on behalf of multiple distinct users in a short window, indicative of Primary Refresh Token (PRT) theft used to impersonate other users, as CISA's red team did against an application owner.
Detects authentication to a web application using default/built-in account credentials followed by outbound mail sent from an internal address — the technique CISA's red team used to send phishing email from a trusted internal identity.
Detects a suspicious sequence of events where a user's password is changed or reset by an administrator (or help-desk role) followed within a short time window by that same user registering a new MFA device, potentially indicating a vishing-based account takeover attack (e.g., PREY-0058/UNC6671).
Detects successful Azure AD sign-ins where the user agent identifies as a Python requests library version (2.33.1 or 2.34.2) that has not been observed for that specific user account in the preceding 14 days. This behavior is indicative of anomalous automated or scripted access.
This rule identifies potentially compromised Entra ID accounts by correlating multiple suspicious behaviors within a 14-day window. It aggregates four specific indicators: successful authentication following repeated MFA failures, impossible travel (sign-ins from multiple countries within a short timeframe), unusual hour logons (00:00-05:00), and sign-ins flagged with medium/high risk or reported as compromised. The rule triggers when an account exhibits two or more of these distinct anomalous behaviors.
KQL Query
This rule identifies potentially compromised Entra ID accounts by correlating multiple suspicious behaviors within a 14-day window. It aggregates four specific indicators: successful authentication following repeated MFA failures, impossible travel (sign-ins from multiple countries within a short timeframe), unusual hour logons (00:00-05:00), and sign-ins flagged with medium/high risk or reported as compromised. The rule triggers when an account exhibits two or more of these distinct anomalous behaviors.
Detects instances where the Grafana MCP (Model Context Protocol) server's service account identity executes administrative tools (such as 'grafana_api_request') within a session that lacks a verified, prior authentication event (bearer token). This pattern suggests an adversary may be spoofing or hijacking a privileged service account session to perform unauthorized administrative actions.
Detects successful authentication events to the Okta Admin Console originating from known proxy services, anonymization networks, or suspicious infrastructure. This activity may indicate an attempt to use compromised administrative credentials to gain unauthorized access to the Identity Provider (IdP) for downstream reconnaissance or persistence.
Tracks changes and activities affecting a specific user account across both on-premises Active Directory and Microsoft Entra ID. The query combines Windows Security Events and Entra ID Audit Logs into a single timeline, making it easier to investigate account modifications, privilege changes, MFA updates, directory synchronization activity, and administrative actions impacting a user.
This detection is particularly useful during incident response, insider threat investigations, account compromise assessments, and user lifecycle reviews
This detection is particularly useful during incident response, insider threat investigations, account compromise assessments, and user lifecycle reviews
Detects interactive sign-in by an Entra Connect/AAD Connect sync service account (Sync_ prefix), which should only authenticate non-interactively. CISA's red team compromised a hybrid sync account to pivot from on-prem AD into cloud resources.
Detects crates.io publish events combining an impersonation indicator (attacker account names/forged author email) with one of the known malicious package names, indicating a compromised or impersonated maintainer account was used to publish the Rust supply-chain payload.
This rule detects a potential security risk by identifying instances where a user registers a new security information method (e.g., FIDO2/Passkey) and subsequently logs in using that same authentication method within a 15-minute window. This pattern may indicate an attacker who has gained initial access or compromised credentials and is attempting to establish persistence or facilitate further account takeovers by registering their own multifactor authentication device.
Detects anomalous access attempts to Netskope Private Access applications, specifically identifying connections from unmanaged devices, access occurring outside of typical business hours, or access from unusual/unexpected geographic locations.
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