[rule]
description = "Detects the execution of a system or user discovery command via a compiled Apple script binary Applet."
id = "d169079a-3495-40ce-9fde-387852b201de"
license = "Elastic License v2"
name = "Initial Access Discovery via Applet Executable"
os_list = ["macos"]
version = "1.0.7"
query = '''
process where event.type == "start" and event.action == "exec" and
(process.Ext.effective_parent.name == "applet" or process.parent.name == "applet") and
process.name in ("whoami", "sw_vers", "arch", "uname")
'''
min_endpoint_version = "8.7.0"
optional_actions = []
[[actions]]
action = "kill_process"
field = "process.entity_id"
state = 0
[[actions]]
action = "kill_process"
field = "process.entity_id"
state = 0
[[threat]]
framework = "MITRE ATT&CK"
[[threat.technique]]
id = "T1059"
name = "Command and Scripting Interpreter"
reference = "https://attack.mitre.org/techniques/T1059/"
[[threat.technique.subtechnique]]
id = "T1059.004"
name = "Unix Shell"
reference = "https://attack.mitre.org/techniques/T1059/004/"
[threat.tactic]
id = "TA0002"
name = "Execution"
reference = "https://attack.mitre.org/tactics/TA0002/"
[[threat]]
framework = "MITRE ATT&CK"
[[threat.technique]]
id = "T1033"
name = "System Owner/User Discovery"
reference = "https://attack.mitre.org/techniques/T1033/"
[threat.tactic]
id = "TA0007"
name = "Discovery"
reference = "https://attack.mitre.org/tactics/TA0007/"
[internal]
min_endpoint_version = "8.7.0"