title: Exploit for CVE-2017-0261
id: 864403a1-36c9-40a2-a982-4c9a45f7d833
status: test
description: Detects Winword starting uncommon sub process FLTLDR.exe as used in exploits for CVE-2017-0261 and CVE-2017-0262
author: Florian Roth
references:
  - https://www.fireeye.com/blog/threat-research/2017/05/eps-processing-zero-days.html
date: 2018/02/22
modified: 2021/11/27
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    ParentImage|endswith: '\WINWORD.EXE'
    Image|contains: '\FLTLDR.exe'
  condition: selection
falsepositives:
  - Several false positives identified, check for suspicious file names or locations (e.g. Temp folders)
level: medium
tags:
  - attack.execution
  - attack.t1203
  - attack.t1204.002
  - attack.initial_access
  - attack.t1566.001
