Searching for Saved Credentials via VaultCmd
Elastic Stack Serverless Security
Windows Credential Manager allows you to create, view, or delete saved credentials for signing into websites, connected applications, and networks. An adversary may abuse this to list or dump credentials stored in the Credential Manager and gain access to usernames and passwords. This may also be performed in preparation for lateral movement.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
- logs-windows.*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: now-9m (https://www.elastic.co/guide/en/elasticsearch/reference/current/common-options.html#date-math[Date Math format], see also Additional look-back time)
Maximum alerts per execution: 100
References:
- https://medium.com/threatpunter/detecting-adversary-tradecraft-with-image-load-event-logging-and-eql-8de93338c16
- https://rastamouse.me/blog/rdp-jump-boxes/
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Credential Access
Version: 3
Rule authors:
- Elastic
Rule license: Elastic License v2
If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define event.ingested and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate event.ingested to @timestamp for this rule to work.
process where event.type in ("start", "process_started") and
(process.pe.original_file_name:"vaultcmd.exe" or process.name:"vaultcmd.exe") and
process.args:"/list*"
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/
Technique:
- Name: Credentials from Password Stores
- ID: T1555
- Reference URL: https://attack.mitre.org/techniques/T1555/
Sub-technique:
- Name: Windows Credential Manager
- ID: T1555.004
- Reference URL: https://attack.mitre.org/techniques/T1555/004/