mirror of
https://github.com/valitydev/SigmaHQ.git
synced 2024-11-07 09:48:58 +00:00
31 lines
1.4 KiB
YAML
31 lines
1.4 KiB
YAML
title: DLL Execution via Rasautou.exe
|
|
id: cd3d1298-eb3b-476c-ac67-12847de55813
|
|
description: Detects using Rasautou.exe for loading arbitrary .DLL specified in -d option and executes the export specified in -p.
|
|
status: experimental
|
|
references:
|
|
- https://lolbas-project.github.io/lolbas/Binaries/Rasautou/
|
|
- https://github.com/fireeye/DueDLLigence
|
|
- https://www.fireeye.com/blog/threat-research/2019/10/staying-hidden-on-the-endpoint-evading-detection-with-shellcode.html
|
|
author: Julia Fomina, oscd.community
|
|
date: 2020/10/09
|
|
tags:
|
|
- attack.defense_evasion
|
|
- attack.t1218
|
|
logsource:
|
|
product: windows
|
|
category: process_creation
|
|
definition: Since options '-d' and '-p' were removed in Windows 10 this rule is relevant only for Windows before 10. And as Windows 7 doesn't log command line in 4688 by default, to detect this attack you need Sysmon 1 configured or KB3004375 installed for command-line auditing (https://support.microsoft.com/en-au/help/3004375/microsoft-security-advisory-update-to-improve-windows-command-line-aud)
|
|
detection:
|
|
use_rasautou:
|
|
Image|endswith: '\rasautou.exe'
|
|
remaned_rasautou:
|
|
OriginalFileName: 'rasdlui.exe'
|
|
special_keys:
|
|
CommandLine|contains|all:
|
|
- '-d'
|
|
- '-p'
|
|
condition: (use_rasautou or remaned_rasautou) and special_keys
|
|
level: medium
|
|
falsepositives:
|
|
- Unlikely
|