launch-questd-w-osascript

Description

This query was originally published in the threat analytics report, EvilQuest signals the rise of Mac ransomware. As of the time of this writing (October 2020), ransomware designed to target macOS is relatively rare. EvilQuest is one of the few examples of this kind of malware on the platform. The query below can detect events associated with the launch of the EvilQuest executable, questd, from the shell. Other queries related to EvilQuest ransomware can be found under the See also section below.

Query · kql

union DeviceFileEvents, DeviceProcessEvents  
| where Timestamp >= ago(7d)  
| where ProcessCommandLine has "osascript -e do shell script \"launchctl load" and  
ProcessCommandLine contains "questd"
Raw source launch-questd-w-osascript · KQL
Esc
Published by Azure/Azure-Sentinel ↗, licensed under MIT ↗. Reproduced here unmodified. 
id: 4e186f05-8cff-4afa-a0c8-4f0f0e7aeb82
name: launch-questd-w-osascript
description: |
  This query was originally published in the threat analytics report, EvilQuest signals the rise of Mac ransomware.
  As of the time of this writing (October 2020), ransomware designed to target macOS is relatively rare. EvilQuest is one of the few examples of this kind of malware on the platform.
  The query below can detect events associated with the launch of the EvilQuest executable, questd, from the shell.
  Other queries related to EvilQuest ransomware can be found under the See also section below.
requiredDataConnectors:
- connectorId: MicrosoftThreatProtection
  dataTypes:
  - DeviceFileEvents
  - DeviceProcessEvents
tactics:
- Execution
- Impact
query: |
  union DeviceFileEvents, DeviceProcessEvents  
  | where Timestamp >= ago(7d)  
  | where ProcessCommandLine has "osascript -e do shell script \"launchctl load" and  
  ProcessCommandLine contains "questd"

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.