Suspicious process event creation from VMWare Horizon TomcatService


Description

Microsoft has observed attackers who have gained entry to an environment via the Log4J vulnerability utilizing the ws_TomcatService.exe process to launch malicious processes.

Query · kql

DeviceProcessEvents
| where InitiatingProcessFileName has "ws_TomcatService.exe"
| where FileName != "repadmin.exe"
Raw source Suspicious process event creation from VMWare Horizon TomcatService · KQL
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Published by Azure/Azure-Sentinel ↗, licensed under MIT ↗. Reproduced here unmodified.
id: afa7c7b7-7d1f-4898-9daf-b35500ff8f2f
name: Suspicious process event creation from VMWare Horizon TomcatService
description: |
  Microsoft has observed attackers who have gained entry to an environment via the Log4J vulnerability utilizing the ws_TomcatService.exe process to launch malicious processes.
requiredDataConnectors:
- connectorId: MicrosoftThreatProtection
  dataTypes:
  - DeviceProcessEvents
tactics:
- Execution
- Vulnerability
query: |
  DeviceProcessEvents
  | where InitiatingProcessFileName has "ws_TomcatService.exe"
  | where FileName != "repadmin.exe"

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