
title: Exploiting CVE-2019-1388
author: Florian Roth
date: 2019/11/20
description: Detects an exploitation attempt in which the UAC consent dialogue is
  used to invoke an Internet Explorer process running as LOCAL_SYSTEM
detection:
  SELECTION_1:
    EventID: 1
  SELECTION_2:
    ParentImage: '*\consent.exe'
  SELECTION_3:
    Image: '*\iexplore.exe'
  SELECTION_4:
    CommandLine: '* http*'
  SELECTION_5:
    IntegrityLevel: System
  SELECTION_6:
    User:
    - NT AUTHORITY\SYSTEM*
    - AUTORITE NT\Sys*
  condition: (SELECTION_1 and SELECTION_2 and SELECTION_3 and SELECTION_4 and (SELECTION_5
    or SELECTION_6))
falsepositives:
- Unknown
id: 02e0b2ea-a597-428e-b04a-af6a1a403e5c
level: critical
logsource:
  category: process_creation
  product: windows
modified: 2021/08/26
references:
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1388
- https://www.zerodayinitiative.com/blog/2019/11/19/thanksgiving-treat-easy-as-pie-windows-7-secure-desktop-escalation-of-privilege
status: experimental
tags:
- attack.privilege_escalation
- attack.t1068
ruletype: SIGMA
