Persistence Via Sticky Key Backdoor

Title: Persistence Via Sticky Key Backdoor
Status: test
Description:By replacing the sticky keys executable with the local admins CMD executable, an attacker is able to access a privileged windows console session without authenticating to the system. When the sticky keys are "activated" the privilleged shell is launched.
References:
  -https://www.fireeye.com/blog/threat-research/2017/03/apt29_domain_frontin.html
  -https://www.clearskysec.com/wp-content/uploads/2020/02/ClearSky-Fox-Kitten-Campaign-v1.pdf
  -https://learn.microsoft.com/en-us/archive/blogs/jonathantrull/detecting-sticky-key-backdoors
Author: Sreeman
Date: 2020-02-18
modified:2023-03-07
Tags:

• -'attack.persistence'
• -'attack.t1546.008'
• -'attack.privilege-escalation'

Logsource:

• product: windows
• category: process_creation

Detection:
  selection:
    CommandLine|contains|all:
      -'copy '
      -'/y '
      -'C:\windows\system32\cmd.exe C:\windows\system32\sethc.exe'

  condition:selection
Falsepositives:
  -Unlikely
Level: critical