Potential RjvPlatform.DLL Sideloading From Default Location

Status: test
Severity: medium
Log source: category image_load, product windows
Author: X__Junior (Nextron Systems)
Source: github.com/SigmaHQ/sigma

Detects loading of "RjvPlatform.dll" by the "SystemResetPlatform.exe" binary which can be abused as a method of DLL side loading since the "$SysReset" directory isn't created by default.

MITRE ATT&CK coverage

Tactic	Techniques
Execution	`T1574.001` Hijack Execution Flow: DLL
Stealth	`T1574.001` Hijack Execution Flow: DLL

Telemetry coverage

Provider	Record / event type
Sysmon	Event ID 7: Image loaded

Rule body

title: Potential RjvPlatform.DLL Sideloading From Default Location
id: 259dda31-b7a3-444f-b7d8-17f96e8a7d0d
status: test
description: Detects loading of "RjvPlatform.dll" by the "SystemResetPlatform.exe" binary which can be abused as a method of DLL side loading since the "$SysReset" directory isn't created by default.
references:
    - https://twitter.com/0gtweet/status/1666716511988330499
author: X__Junior (Nextron Systems)
date: 2023-06-09
tags:
    - attack.persistence
    - attack.privilege-escalation
    - attack.execution
    - attack.stealth
    - attack.t1574.001
logsource:
    category: image_load
    product: windows
detection:
    selection:
        Image: 'C:\Windows\System32\SystemResetPlatform\SystemResetPlatform.exe'
        ImageLoaded: 'C:\$SysReset\Framework\Stack\RjvPlatform.dll'
    condition: selection
falsepositives:
    - Unknown
level: medium

Stages and Predicates

Stage 0: `condition`

selection

Stage 1: `selection`

selection:
    Image: 'C:\Windows\System32\SystemResetPlatform\SystemResetPlatform.exe'
    ImageLoaded: 'C:\$SysReset\Framework\Stack\RjvPlatform.dll'

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`Image`	eq	`C:\Windows\System32\SystemResetPlatform\SystemResetPlatform.exe`	`field:"Image" kind:eq value:"C:\Windows\System32\SystemResetPlatform\SystemResetPlatform.exe"`
`ImageLoaded`	eq	`C:\$SysReset\Framework\Stack\RjvPlatform.dll`	`field:"ImageLoaded" kind:eq value:"C:\$SysReset\Framework\Stack\RjvPlatform.dll"`