Prompt for Credentials with OSASCRIPTedit

Identifies the use of osascript to execute scripts via standard input that may prompt a user with a rogue dialog for credentials.

Rule type: eql

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
  • Credential Access

Version: 100 (version history)

Added (Elastic Stack release): 7.11.0

Last modified (Elastic Stack release): 8.5.0

Rule authors: Elastic

Rule license: Elastic License v2

Investigation guideedit


Rule queryedit

process where event.type in ("start", "process_started") and
process.name : "osascript" and process.command_line :
"osascript*display dialog*password*"

Threat mappingedit

Framework: MITRE ATT&CKTM

Rule version historyedit

Version 100 (8.5.0 release)
  • Formatting only
Version 6 (8.4.0 release)
  • Formatting only
Version 4 (8.2.0 release)
  • Formatting only
Version 3 (7.12.0 release)
  • Updated query, changed from:

    process where event.type in ("start", "process_started") and
    process.name:"osascript" and process.args:"-e" and
    process.args:"password"
Version 2 (7.11.2 release)
  • Formatting only