Detection rules › Sigma
Wdigest authentication enabled (registry)
Detects scenarios where an attacker attempts to enable Wdgiest authention so passwords are stored in clear text and can be dumped.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Stealth | T1562 Impair Defenses |
| Credential Access | T1003 OS Credential Dumping |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 13 | RegistryEvent (Value Set) |
Rule body yaml
title: Wdigest authentication enabled (registry)
description: Detects scenarios where an attacker attempts to enable Wdgiest authention so passwords are stored in clear text and can be dumped.
references:
- https://github.com/mdecrevoisier/EVTX-to-MITRE-Attack/tree/master/TA0006-Credential%20Access/
- https://thedfirreport.com/2021/08/16/trickbot-leads-up-to-fake-1password-installation/
- https://www.ired.team/offensive-security/credential-access-and-credential-dumping/forcing-wdigest-to-store-credentials-in-plaintext
- https://www.hackingarticles.in/credential-dumping-wdigest/
- https://stealthbits.com/blog/wdigest-clear-text-passwords-stealing-more-than-a-hash/
- https://github.com/HarmJ0y/Misc-PowerShell/blob/master/Invoke-WdigestDowngrade.ps1
- https://www.microsoft.com/en-us/security/blog/2022/10/18/defenders-beware-a-case-for-post-ransomware-investigations/
tags:
- attack.credential_access
- attack.t1003
- attack.defense_evasion
- attack.t1562
author: mdecrevoisier
status: experimental
logsource:
product: windows
category: registry_set
detection: # reg add HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\WDigest /v UseLogonCredential /t REG_DWORD /d 1
selection:
TargetObject|endswith: '\System\CurrentControlSet\Control\SecurityProviders\WDigest\UseLogonCredential'
Details|contains: '0x00000001'
condition: selection
falsepositives:
- None
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
TargetObject|endswith: '\System\CurrentControlSet\Control\SecurityProviders\WDigest\UseLogonCredential'
Details|contains: '0x00000001'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
Details | match |
|
TargetObject | ends_with |
|