Suspicious Child Process of Adobe Acrobat Reader Update Serviceedit

Detects attempts to exploit privilege escalation vulnerabilities related to the Adobe Acrobat Reader PrivilegedHelperTool responsible for installing updates. For more information, refer to CVE-2020-9615, CVE-2020-9614 and CVE-2020-9613 and verify that the impacted system is patched.

Rule type: query

Rule indices:

  • auditbeat-*
  • logs-endpoint.events.*

Severity: high

Risk score: 73

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Elastic
  • Host
  • macOS
  • Threat Detection
  • Privilege Escalation

Version: 1

Added (Elastic Stack release): 7.12.0

Rule authors: Elastic

Rule license: Elastic License v2

Potential false positivesedit

Trusted system or Adobe Acrobat Related processes.

Rule queryedit

event.category:process and event.type:(start or process_started) and
process.parent.name:com.adobe.ARMDC.SMJobBlessHelper and
user.name:root and not process.executable:
(/Library/PrivilegedHelperTools/com.adobe.ARMDC.SMJobBlessHelper or
/usr/bin/codesign or
/private/var/folders/zz/*/T/download/ARMDCHammer or
/usr/sbin/pkgutil or /usr/bin/shasum or
/usr/bin/perl* or /usr/sbin/spctl or
/usr/sbin/installer)

Threat mappingedit

Framework: MITRE ATT&CKTM