You are looking at preliminary documentation for a future release.
Not what you want? See the
current release documentation.
Access to a Sensitive LDAP Attributeedit
Identify access to sensitive Active Directory object attributes that contains credentials and decryption keys such as unixUserPassword, ms-PKI-AccountCredentials and msPKI-CredentialRoamingTokens.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-system.*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Credential Access
- Active Directory
Version: 1
Added (Elastic Stack release): 8.6.0
Rule authors: Elastic
Rule license: Elastic License v2
Investigation guideedit
The 'Audit Directory Service Changes' logging policy must be configured for (Success, Failure). Steps to implement the logging policy with Advanced Audit Configuration: ``` Computer Configuration > Policies > Windows Settings > Security Settings > Advanced Audit Policies Configuration > Audit Policies > DS Access > Audit Directory Service Changes (Success,Failure) ```
Rule queryedit
any where event.action == "Directory Service Access" and event.code == "4662" and not winlog.event_data.SubjectUserSid : "S-1-5-18" and winlog.event_data.Properties : ( /* unixUserPassword */ "*612cb747-c0e8-4f92-9221-fdd5f15b550d*", /* ms-PKI- AccountCredentials */ "*b8dfa744-31dc-4ef1-ac7c-84baf7ef9da7*", /* ms-PKI-DPAPIMasterKeys */ "*b3f93023-9239-4f7c-b99c-6745d87adbc2*", /* msPKI- CredentialRoamingTokens */ "*b7ff5a38-0818-42b0-8110-d3d154c97f24*" )
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
-
Technique:
- Name: OS Credential Dumping
- ID: T1003
- Reference URL: https://attack.mitre.org/techniques/T1003/