Ibrahim Saud
@tektrixIndiaCompletionist
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Detects a potential Business Email Compromise (BEC) persistence chain where a user grants an OAuth application mailbox read/write permissions, followed immediately by the creation of an inbox rule (forwarding, moving, or deleting) targeting messages containing keywords like 'invoice', 'wire', or 'payment'.
This rule detects administrative changes that weaken cloud identity security, specifically the disabling of Entra ID Security Defaults, per-user MFA enforcement, or tenant-wide authentication-methods policies. These actions remove critical second-factor authentication requirements, significantly increasing the risk of unauthorized access via password-spraying or credential-stuffing attacks.
Detects changes to AWS S3 bucket policies or Access Control Lists (ACLs) that result in the bucket becoming publicly accessible. This is a common indicator of misconfiguration or unauthorized modification potentially leading to unauthorized data exposure.
Detects modifications to application secrets or certificates in Azure that are performed by a user who is not the registered owner of the application, or when a new credential is added to an application that already has credentials configured, potentially indicating persistent access establishment.
Detects the creation of new AWS IAM access keys where the actor initiating the request is distinct from the target user associated with the key. This behavior often indicates an adversary attempting to establish persistent access to a compromised account by creating additional, long-lived credentials.
Detects modifications or deletions of Azure AD Conditional Access policies that weaken security, such as disabling policies, removing MFA requirements, or adding user/group/application exclusions. This behavior can be indicative of an attacker attempting to bypass authentication controls.
This rule detects the creation of new, potentially long-lived service account keys for GCP service accounts that possess highly privileged roles, such as Project Owner, Project Editor, or broad custom roles. The creation of such keys for privileged accounts can be a technique used by adversaries to establish persistent, stealthy access within a GCP environment.
This rule detects potential browser-based credential and session theft by monitoring for a process that accesses multiple sensitive web browser artifacts (cookies, local state, session storage) across several user profiles in a short timeframe. It correlates this activity with the subsequent creation of a compressed archive in a temporary directory followed by an outbound network connection, indicating a multi-stage exfiltration workflow.
Detects a potential Business Email Compromise (BEC) persistence chain where a user grants an OAuth application mailbox read/write permissions, followed immediately by the creation of an inbox rule (forwarding, moving, or deleting) targeting messages containing keywords like 'invoice', 'wire', or 'payment'.
This rule detects administrative actions in GCP that involve modifying or deleting Cloud Logging sinks, or disabling specific services, with a specific focus on disabling the logging service itself. Adversaries may perform these actions to tamper with audit trails and evade detection of malicious activities.
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