Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects when user accounts are created or deleted in Azure Active Directory by users who are not on an approved list. It specifically looks for 'Add user' or 'Delete user' messages in the audit logs with a 'Success' status, and then filters out actions initiated by known, approved administrators.
This rule detects when a user is added to an administrator's role within Azure Active Directory. This is a critical event as it grants elevated privileges to the user, which could be abused for malicious purposes such as persistence, privilege escalation, or initial access. The detection specifically looks for 'Add member to role.' operations in AzureActiveDirectory workload where the new role value ends with 'Admins' or 'Administrator'.
Detects when a temporary access pass (TAP) is added to an account in Azure AD. TAPs are a passwordless authentication method that can be used for onboarding, recovery, or as a strong credential. The addition of a TAP, especially to privileged accounts, should be investigated as it could indicate an attempt to gain or maintain unauthorized access.
This rule detects when Privileged Identity Management (PIM) alerts are disabled within Azure. Disabling PIM alerts can be a defense evasion tactic, as it prevents security teams from being notified of critical activities related to privileged roles, potentially allowing an attacker to operate undetected after gaining initial access or escalating privileges.
Detects when a modification (create, update, replace, delete, or patch) action is taken that affects mutating or validating webhook configurations in Kubernetes. Adversaries can abuse these configurations to achieve persistence, exfiltrate credentials, or escalate privileges within the cluster.
Detects successful sign-ins by privileged role accounts that occur outside of normal business hours or from unusual geographic locations. This rule is designed to flag potentially suspicious activity that could indicate compromised credentials or insider threat activity, especially for administrative accounts.
Identifies when a user grants permissions to another user on Azure resources. The rule specifically looks for the 'Microsoft.Authorization/roleAssignments/write' operation in Azure Activity Logs, which indicates a role assignment creation or modification. This can be an indicator of privilege escalation or persistence.
This rule detects when a user's account type is changed from 'Guest' to 'Member' within Azure Active Directory. This change signifies an elevation of privileges for the user, as 'Member' accounts typically have broader access and capabilities compared to 'Guest' accounts. Such a modification could be an indicator of an adversary attempting to gain higher privileges or establish persistence within the cloud environment.
Detects when a Privileged Identity Management (PIM) elevation request is approved or denied within Azure AD. This rule helps monitor critical administrative actions related to privilege escalation. Any approvals or denials outside of expected administrative operations should be investigated as they could indicate unauthorized privilege management or attempts to bypass security controls.
This rule identifies a critical security misconfiguration or bypass scenario within Azure Privileged Identity Management (PIM) where a privileged role can be activated without requiring multi-factor authentication (MFA). This can significantly increase the risk of unauthorized access and privilege escalation if an attacker compromises credentials for an account with PIM roles.
Detects the import of SSH key pairs into AWS EC2, which may indicate an attacker attempting to gain unauthorized access to instances. This activity could lead to initial access, persistence, or privilege escalation, potentially compromising sensitive data and operations.
This rule detects the creation or modification of local user accounts and changes to remote authentication configurations on Cisco devices. It specifically looks for keywords 'username' and 'aaa' in Cisco AAA logs, indicating actions related to account management or authentication settings.
Detects the deletion of an AWS SAML provider, which could indicate an attacker attempting to disrupt administrative or security team access. By removing the SAML provider, an adversary can hinder the ability of security personnel or system administrators to investigate and respond during an attack.
This rule identifies when a user or application modifies the federation settings on a domain within Azure Active Directory. Such modifications can impact how users authenticate and can be leveraged by attackers for persistence, privilege escalation, or defense evasion by altering trust relationships.
Detects when changes are made to Privileged Identity Management (PIM) role settings within Azure Active Directory. This could indicate an attempt to alter how privileged roles are managed, potentially to facilitate unauthorized access or persistence.
This rule identifies when a privileged role assignment occurs in Azure Active Directory (now Microsoft Entra ID) without utilizing Privileged Identity Management (PIM). Such assignments bypass the just-in-time access and approval workflows provided by PIM, potentially indicating an attacker attempting to establish persistent privileged access or escalate privileges outside of established security controls.
This rule detects when a Conditional Access (CA) policy is deleted in Azure Active Directory (now Microsoft Entra ID). This activity is critical to monitor as the removal of a CA policy can significantly weaken an organization's security posture by bypassing multi-factor authentication, device compliance checks, or other access controls. The rule specifically looks for the 'Delete conditional access policy' message in the Azure Audit Logs. While the rule's title suggests identifying actions by 'non-approved actors', the current detection logic only identifies the deletion event itself, not the actor's approval status. Further enrichment or correlation would be needed to determine if the actor is unauthorized.
This rule detects the creation of AWS API keys for a user by a different user. This activity is indicative of a backdoored user account being used to establish persistence within an AWS environment. It can also help identify unusual flows of AWS key creation within an organization.
Detects when a Google Workspace user is granted administrative privileges. This could indicate a legitimate administrative action or a malicious attempt to escalate privileges within the Google Workspace environment.
This rule detects when a Conditional Access policy is updated within an Azure environment. It aims to identify unauthorized or suspicious modifications to these critical security policies, which could lead to privilege escalation, credential access, or defense evasion. The rule specifically looks for the message 'Update conditional access policy' in audit logs. Further investigation would involve checking if the actor initiating the change is approved and comparing the old versus new policy values.
This rule detects when guest users are invited to the tenant by individuals who are not on an approved list of inviters. This helps identify unauthorized or suspicious external user invitations that could lead to unauthorized access or compromise.
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