Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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Detects anomalous use of an OAuth2/OIDC refresh token or Primary Refresh Token (PRT) where the originating device, IP, ASN, or country differs from the initial interactive sign-in within a short timeframe. This behavior is a strong indicator of adversary-in-the-middle (AiTM) attacks, such as Evilginx or Modlishka, where session cookies and tokens are stolen to bypass MFA.
This rule detects when a user registers or adds a new device in Entra ID within a short timeframe (two hours) of experiencing a risky sign-in or a password reset. It specifically flags registrations involving potentially unmanaged, non-compliant, or unusually trusted devices, which may indicate an attempt to establish persistent access or bypass Conditional Access policies.
This rule detects when a user or admin grants consent to an unverified OAuth application that simultaneously requests sensitive delegated permissions across multiple categories (Mail, Files, Directory, and Contacts). This pattern is a strong indicator of consent phishing attacks, where adversaries trick users into granting broad permissions to a malicious application to harvest sensitive data or gain persistent access to a Microsoft 365 environment.
Detects the registration of a new MFA authentication method on an Entra ID account from an unrecognized IP or device, occurring in close temporal proximity to a password reset or a risky sign-in event. This behavior is indicative of an adversary establishing persistence via self-service MFA registration after compromising user credentials.
Detects the addition of service principal credentials by a user who is not explicitly listed as an owner of the application. This activity is monitored to identify potential persistence or privilege escalation attempts where an unauthorized account adds its own authentication method to an existing cloud application or service principal.
Detects instances where an administrator or user grants an application consent with highly sensitive permissions in Azure AD (Microsoft Entra ID). This activity is often associated with OAuth application phishing, where an adversary lures a user into granting excessive permissions to a malicious application, potentially leading to long-term persistence or unauthorized access to directory data and conditional access policies.
This rule detects when a non-privileged user adds a new owner to an Azure AD Application or Service Principal, followed by a suspicious modification (such as adding credentials or permissions) to that same application within 30 minutes. This behavior is indicative of an adversary attempting to gain persistent, elevated access to an application's service principal to manipulate its configuration or permissions.
This rule detects when a non-privileged user adds a new owner to an Azure AD Application or Service Principal, followed by a suspicious modification (such as adding credentials or permissions) to that same application within 30 minutes. This behavior is indicative of an adversary attempting to gain persistent, elevated access to an application's service principal to manipulate its configuration or permissions.
Detects the addition of new service principal credentials (passwords or certificates) to Azure AD applications occurring outside of typical business hours. This behavior may indicate an attacker attempting to establish persistence or maintain unauthorized access to cloud resources through an existing application identity.
Detects potential refresh token replay attacks, such as those facilitated by Adversary-in-the-Middle (AiTM) proxy phishing, by identifying consecutive non-interactive sign-in events for the same user from geographically distant locations within a short time frame that precludes physical travel.
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