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Detection rules › Sigma

SAM Registry Hive Handle Request

Status
test
Severity
high
Log source
product windows, service security
Author
Roberto Rodriguez @Cyb3rWard0g
Source
github.com/SigmaHQ/sigma

Detects handles requested to SAM registry hive

MITRE ATT&CK coverage

TacticTechniques
Credential AccessT1552.002 Unsecured Credentials: Credentials in Registry
DiscoveryT1012 Query Registry

Event coverage

ProviderEventTitle
Security-AuditingEvent ID 4656A handle to an object was requested.

Rule body yaml

title: SAM Registry Hive Handle Request
id: f8748f2c-89dc-4d95-afb0-5a2dfdbad332
status: test
description: Detects handles requested to SAM registry hive
references:
    - https://threathunterplaybook.com/hunts/windows/190725-SAMRegistryHiveHandleRequest/notebook.html
author: Roberto Rodriguez @Cyb3rWard0g
date: 2019-08-12
modified: 2021-11-27
tags:
    - attack.discovery
    - attack.t1012
    - attack.credential-access
    - attack.t1552.002
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID: 4656
        ObjectType: 'Key'
        ObjectName|endswith: '\SAM'
    condition: selection
falsepositives:
    - Unknown
level: high

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    EventID: 4656
    ObjectType: 'Key'
    ObjectName|endswith: '\SAM'

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.

FieldKindValues
ObjectNameends_with
  • \SAM
ObjectTypeeq
  • Key corpus 8 (sigma 4, kusto 4)