Multiple Vault Web Credentials Read

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 for saved usernames and passwords. This may also be performed in preparation of lateral movement.

Rule type: eql

Rule indices:

winlogbeat-*
logs-system.*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

https://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=5382

Tags:

Elastic
Host
Windows
Threat Detection
Credential Access

Version: 1

Rule authors:

Elastic

Rule license: Elastic License v2

Investigation guide

edit

Rule query

edit

sequence by host.id, winlog.process.pid with maxspan=1s

 /* 2 consecutive vault reads from same pid for web creds */

 [any where event.code : "5382" and
  (winlog.event_data.SchemaFriendlyName : "Windows Web Password Credential" or winlog.event_data.Resource : "http*") and
  not winlog.event_data.SubjectLogonId : "0x3e7"]

 [any where event.code : "5382" and
  (winlog.event_data.SchemaFriendlyName : "Windows Web Password Credential" or winlog.event_data.Resource : "http*") and
  not winlog.event_data.SubjectLogonId : "0x3e7"]

Framework: MITRE ATT&CK^TM

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/

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