Suspicious Process Masquerading As SvcHost.EXE
Detects a suspicious process that is masquerading as the legitimate "svchost.exe" by naming its binary "svchost.exe" and executing from an uncommon location. Adversaries often disguise their malicious binaries by naming them after legitimate system processes like "svchost.exe" to evade detection.
Detection logic
selection
Image|endswith: \svchost.exefilter_main_img_location
Image:
- C:\Windows\System32\svchost.exe
- C:\Windows\SysWOW64\svchost.exefilter_main_ofn
OriginalFileName: svchost.exeCondition
selection and not 1 of filter_main_*Raw YAML
title: Suspicious Process Masquerading As SvcHost.EXE
id: be58d2e2-06c8-4f58-b666-b99f6dc3b6cd
related:
- id: 01d2e2a1-5f09-44f7-9fc1-24faa7479b6d
type: similar
- id: e4a6b256-3e47-40fc-89d2-7a477edd6915
type: similar
status: test
description: |
Detects a suspicious process that is masquerading as the legitimate "svchost.exe" by naming its binary "svchost.exe" and executing from an uncommon location.
Adversaries often disguise their malicious binaries by naming them after legitimate system processes like "svchost.exe" to evade detection.
references:
- https://tria.ge/240731-jh4crsycnb/behavioral2
- https://redcanary.com/blog/threat-detection/process-masquerading/
author: Swachchhanda Shrawan Poudel
date: 2024-08-07
tags:
- attack.stealth
- attack.t1036.005
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith: '\svchost.exe'
filter_main_img_location:
Image:
- 'C:\Windows\System32\svchost.exe'
- 'C:\Windows\SysWOW64\svchost.exe'
filter_main_ofn:
OriginalFileName: 'svchost.exe'
condition: selection and not 1 of filter_main_*
falsepositives:
- Unlikely
level: high
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_svchost_masqueraded_execution/info.ymlFalse positives
- Unlikely