Potential Persistence Via TypedPaths

Status: test
Severity: high
Log source: category registry_set, product windows
Author: Nasreddine Bencherchali (Nextron Systems)
Source: github.com/SigmaHQ/sigma

Detects modification addition to the 'TypedPaths' key in the user or admin registry from a non standard application. Which might indicate persistence attempt

Known false positives

Unlikely

MITRE ATT&CK coverage

Tactic	Techniques
Persistence	No specific technique

Telemetry coverage

Provider	Record / event type
Sysmon	Event ID 13: RegistryEvent (Value Set)

Rule body

title: Potential Persistence Via TypedPaths
id: 086ae989-9ca6-4fe7-895a-759c5544f247
status: test
description: Detects modification addition to the 'TypedPaths' key in the user or admin registry from a non standard application. Which might indicate persistence attempt
references:
    - https://twitter.com/dez_/status/1560101453150257154
    - https://forensafe.com/blogs/typedpaths.html
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-08-22
modified: 2023-08-17
tags:
    - attack.persistence
logsource:
    category: registry_set
    product: windows
detection:
    selection:
        TargetObject|contains: '\Software\Microsoft\Windows\CurrentVersion\Explorer\TypedPaths\'
    filter:
        Image:
            - 'C:\Windows\explorer.exe'
            - 'C:\Windows\SysWOW64\explorer.exe'
    condition: selection and not filter
falsepositives:
    - Unlikely
level: high

Stages and Predicates

Stage 0: `condition`

selection and not filter

Stage 1: `selection`

selection:
    TargetObject|contains: '\Software\Microsoft\Windows\CurrentVersion\Explorer\TypedPaths\'

Stage 2: `not filter`

filter:
    Image:
        - 'C:\Windows\explorer.exe'
        - 'C:\Windows\SysWOW64\explorer.exe'

Exclusions

The rule actively suppresses these predicates.

Field	Kind	Excluded values	Search
`Image`	eq	`C:\Windows\SysWOW64\explorer.exe`	`excludes:Image` `field:"Image" value:"C:\Windows\SysWOW64\explorer.exe"`
`Image`	eq	`C:\Windows\explorer.exe`	`excludes:Image` `field:"Image" value:"C:\Windows\explorer.exe"`

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`TargetObject`	match	`\Software\Microsoft\Windows\CurrentVersion\Explorer\TypedPaths\`	`field:"TargetObject" kind:match value:"\Software\Microsoft\Windows\CurrentVersion\Explorer\TypedPaths\"`