Browse Rules

Search and filter across all detection sources

56 rules

elastic medium eql

User Added to Privileged Group in Active Directory

Identifies a user being added to a privileged group in Active Directory. Privileged accounts and groups in Active Directory are those to which powerful rights, privileges, and permissions are granted that allow them to perform nearly any action in Active Directory and on domain-joined systems.

elastic medium eql

Access to a Sensitive LDAP Attribute

Identify access to sensitive Active Directory object attributes that contains credentials and decryption keys such as unixUserPassword, ms-PKI-AccountCredentials and msPKI-CredentialRoamingTokens.

elastic medium kql

Potential Active Directory Replication Account Backdoor

Identifies the modification of the nTSecurityDescriptor attribute in a domain object with rights related to DCSync to a user/computer account. Attackers can use this backdoor to re-obtain access to hashes of any user/computer.

elastic low eql

Unusual Remote File Directory

An anomaly detection job has detected a remote file transfer on an unusual directory indicating a potential lateral movement activity on the host. Many Security solutions monitor well-known directories for suspicious activities, so attackers might use less common directories to bypass monitoring.

elastic medium kql

Potential Credential Access via DCSync

This rule identifies when a User Account starts the Active Directory Replication Process. Attackers can use the DCSync technique to get credential information of individual accounts or the entire domain, thus compromising the entire domain.

elastic medium eql

Startup/Logon Script added to Group Policy Object

Detects the modification of Group Policy Objects (GPO) to add a startup/logon script to users or computer objects.

elastic high eql

Group Policy Abuse for Privilege Addition

Detects the first occurrence of a modification to Group Policy Object Attributes to add privileges to user accounts or use them to add users as local admins.

elastic medium eql

Active Directory Forced Authentication from Linux Host - SMB Named Pipes

Identifies a potential forced authentication using related SMB named pipes. Attackers may attempt to force targets to authenticate to a host controlled by them to capture hashes or enable relay attacks.

elastic medium eql

Scheduled Task Execution at Scale via GPO

Detects the modification of Group Policy Object attributes to execute a scheduled task in the objects controlled by the GPO.

elastic high kql

First Time Seen Account Performing DCSync

This rule identifies when a User Account starts the Active Directory Replication Process for the first time. Attackers can use the DCSync technique to get credential information of individual accounts or the entire domain, thus compromising the entire domain.

elastic high eql

KRBTGT Delegation Backdoor

Identifies the modification of the msDS-AllowedToDelegateTo attribute to KRBTGT. Attackers can use this technique to maintain persistence to the domain by having the ability to request tickets for the KRBTGT service.

elastic medium eql

Potential Computer Account NTLM Relay Activity

Identifies potential relay activities against a Computer account by identifying authentication events using the computer account coming from from hosts other than the server that owns the account. Attackers may relay the computer account hash after capturing it using forced authentication.

elastic high kql

Sensitive Privilege SeEnableDelegationPrivilege assigned to a Principal

Identifies the assignment of the SeEnableDelegationPrivilege sensitive "user right" to a security principal. This right enables computer and user accounts to be trusted for delegation. Attackers can abuse it to compromise Active Directory accounts and elevate their privileges.

elastic high kql

dMSA Account Creation by an Unusual User

Detects creation of a delegated Managed Service Account by an unusual subject account. Attackers can abuse weak child-object or msDS-DelegatedManagedServiceAccount rights during account migration to elevate privileges.

elastic medium eql

Active Directory Group Modification by SYSTEM

Identifies a user being added to an active directory group by the SYSTEM (S-1-5-18) user. This behavior can indicate that the attacker has achieved SYSTEM privileges in a domain controller, which attackers can obtain by exploiting vulnerabilities or abusing default group privileges (e.g., Server Operators), and is attempting to pivot to a domain account.

elastic high eql

Potential Machine Account Relay Attack via SMB

Identifies potential relay attacks against a machine account by identifying network share access events coming from a remote source.ip but using the target server computer account. This may indicate an SMB relay attack.

elastic medium eql

Account Configured with Never-Expiring Password

Detects the creation and modification of an account with the "Don't Expire Password" option Enabled. Attackers can abuse this misconfiguration to persist in the domain and maintain long-term access using compromised accounts with this property.

elastic medium kql

Modification of the msPKIAccountCredentials

Identify the modification of the msPKIAccountCredentials attribute in an Active Directory User Object. Attackers can abuse the credentials roaming feature to overwrite an arbitrary file for privilege escalation. ms-PKI-AccountCredentials contains binary large objects (BLOBs) of encrypted credential objects from the credential manager store, private keys, certificates, and certificate requests.

elastic low kql

WRITEDAC Access on Active Directory Object

Identifies the access on an object with WRITEDAC permissions. With the WRITEDAC permission, the user can perform a Write Discretionary Access Control List (WriteDACL) operation, which is used to modify the access control rules associated with a specific object within Active Directory. Attackers may abuse this privilege to grant themselves or other compromised accounts additional rights, ultimately compromising the target object, resulting in privilege escalation, lateral movement, and persistenc

elastic high kql

Potential Shadow Credentials added to AD Object

Identify the modification of the msDS-KeyCredentialLink attribute in an Active Directory Computer or User Object. Attackers can abuse control over the object and create a key pair, append to raw public key in the attribute, and obtain persistent and stealthy access to the target user or computer object.

elastic high eql

Suspicious Kerberos Authentication Ticket Request

Correlates network connections to the standard Kerberos port by an unusual process from the source machine with a Kerberos authentication ticket request from the target domain controller.

elastic high kql

Delegated Managed Service Account Modification by an Unusual User

Detects modifications to the msDS-ManagedAccountPrecededByLink attribute of a delegated managed service account by an unusual subject account. Attackers can abuse this attribute to inherit a target account's permissions and further elevate privileges.

elastic medium eql

Suspicious Remote Registry Access via SeBackupPrivilege

Identifies remote access to the registry using an account with Backup Operators group membership. This may indicate an attempt to exfiltrate credentials by dumping the Security Account Manager (SAM) registry hive in preparation for credential access and privileges elevation.

elastic high kql

Protected Storage Service Access via SMB

Identifies remote access to the Windows Protected Storage Service through the IPC$ share. Attackers may abuse this named pipe to interact with the Protected Storage Service and extract sensitive credentials, certificates, or DPAPI backup keys.

elastic high kql

Potential CertiGhost AD CS Machine Identity Mismatch (CVE-2026-54121)

Identifies successful Active Directory Certificate Services (AD CS) certificate issuance events where a machine-account requester differs from the Remote Machine Discovery (RMD) chase target while the event's DNS subject alternative name (SAN) matches that target. This requester-to-target mismatch may indicate CertiGhost (CVE-2026-54121) or similar abuse of AD CS request-context chase processing.