Renamed Whoami Execution

Title: Renamed Whoami Execution
Status: test
Description:Detects the execution of whoami that has been renamed to a different name to avoid detection
References:
  -https://brica.de/alerts/alert/public/1247926/agent-tesla-keylogger-delivered-inside-a-power-iso-daa-archive/
  -https://app.any.run/tasks/7eaba74e-c1ea-400f-9c17-5e30eee89906/
Author: Florian Roth (Nextron Systems)
Date: 2021-08-12
modified:2022-10-09
Tags:

• -'attack.discovery'
• -'attack.t1033'
• -'car.2016-03-001'

Logsource:

• category: process_creation
• product: windows

Detection:
  selection:
    OriginalFileName: 'whoami.exe'
  filter:
    Image|endswith: '\whoami.exe'
  condition:selection and not filter
Falsepositives:
  -Unknown
Level: critical