Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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Detects non-interactive sign-in events (including refresh-token or PRT-based authentication) where the originating device is not managed by Intune/Jamf, not marked as compliant, and lacks a registered trust type. This behavior is indicative of potential stolen session token replay or unauthorized access using intercepted artifacts.
This rule detects non-browser processes that simultaneously access a web browser's 'Local State' file and the Windows DPAPI master key storage directory. This behavior is a common precursor to credential dumping, as adversaries must decrypt browser-protected secrets (passwords and cookies) using DPAPI keys stored in the user's profile.
Detects instances where a user account that has been flagged as risky (e.g., unfamiliar features, impossible travel, or malicious IP activity) performs a modification or registration of multi-factor authentication (MFA) security information within a short timeframe (30 minutes). This behavior is highly indicative of an adversary attempting to establish persistence or bypass authentication controls after a credential compromise.
This rule detects potential account compromise by identifying 'impossible travel' scenarios where successful logins for the same user occur from different geolocations within a short timeframe (less than 1 hour), specifically when at least one authentication event uses a refresh or session token rather than interactive MFA. It correlates these suspicious logins with previous endpoint infostealer detections on the same device within the last 72 hours, indicating that the token may have been stolen by malware.
Detects anomalous authentication behavior where a single session identifier is used to access three or more distinct SaaS applications within a one-hour window. This behavior often indicates the unauthorized use of a stolen session cookie or OAuth token (Pass-the-Cookie) across multiple SSO-integrated platforms.
Detects the creation or modification of Exchange mailbox or transport rules that exhibit suspicious characteristics, such as external forwarding, movement to hidden or system folders, automatic deletion/marking as read, or rules containing keywords related to financial fraud. The rule specifically monitors for activities occurring via non-standard or automated clients to increase detection fidelity.
Detects when a user account assigned to a highly privileged directory or cloud role performs the assignment shortly after exhibiting signs of compromise, such as risky sign-ins, anomalous locations, or suspected session token reuse.
Detects Microsoft Entra ID (formerly Azure AD) PIM or Just-In-Time role activations that occur without a proper approval workflow, are self-approved, or coincide with identified risky sign-in signals.
This rule detects potentially compromised accounts by correlating suspicious authentication activity (such as risky sign-ins, impossible travel, or malicious OAuth/Mail-rule configurations) with a subsequent spike in SharePoint or OneDrive file access, downloads, or external link sharing within a one-hour window. This behavior is indicative of an adversary performing cloud-based data exfiltration after gaining unauthorized access to an account.
Detects the creation or modification of Exchange inbox rules that involve suspicious actions, such as forwarding or redirecting emails to external domains, deleting messages, or marking messages as read. These actions are common indicators of persistent access or data exfiltration attempts following a mailbox compromise.
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