Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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This rule detects Entra ID Privileged Identity Management (PIM) role activations that occur with missing or generic justification, correlated with a sign-in session that has been flagged as risky (high/medium risk) or non-interactive. This combination suggests a potential session hijacking scenario where an adversary is attempting to elevate privileges using a compromised, legitimate user session.
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 risky Azure AD sign-in (e.g., token replay or confirmed compromise) is closely followed (within 24 hours) by sensitive application or service principal credential modifications by the same user account. This behavior is indicative of potential persistence establishment via account manipulation.
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.
Detects a potential post-compromise lateral movement sequence where a host, previously identified as accessing sensitive browser credential files by an unauthorized process, subsequently initiates RDP or WinRM connections to other internal hosts using an account not previously observed performing interactive logons on that source host.
Detects instances where a suspicious PowerShell, mshta, or pwsh command, typically involving download or obfuscation patterns, is launched as a child process of Windows Explorer within two minutes of a modification to the Explorer RunMRU registry key. This behavior is indicative of an adversary attempting to achieve execution, often following user interaction or persistence triggers.
Detects unauthorized access or modification attempts to common web browser credential storage files (such as 'Login Data' or 'key4.db') by processes other than standard, trusted web browsers (e.g., Chrome, Edge, Firefox). This behavior is indicative of credential harvesting, where an adversary attempts to steal saved login information from browser data stores.
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