NotificationCenter Silenced via Killall Binary

[rule]
description = """
Detects when the killall process is spawned in order to kill NotificationCenter messages that provide users with pop up
system notifications like security warnings etc.
"""
id = "5399e933-d4d7-47e5-a816-5d850729c26c"
license = "Elastic License v2"
name = "NotificationCenter Silenced via Killall Binary"
os_list = ["macos"]
reference = ["https://securelist.com/new-macos-backdoor-crypto-stealer/111778/"]
version = "1.0.6"

query = '''
process where event.type == "start" and event.action == "exec" and process.name == "killall" and
 process.args like "NotificationCenter" and
 (process.parent.executable like ("/Applications/*", "/Volumes/*", "/Users/*", "/private/tmp/*", "/tmp/*") or
  process.Ext.effective_parent.executable like ("/Applications/*", "/Volumes/*", "/Users/*", "/private/tmp/*", "/tmp/*")) and
  not (process.parent.code_signature.trusted == true and process.parent.code_signature.team_id in ("8CA6NAN723", "Y75Z7G683Y", "7JVNAY4725")) and
  not process.Ext.effective_parent.executable == "/Applications/Airtame.app/Contents/MacOS/Airtame"
'''

min_endpoint_version = "8.10.2"
optional_actions = []
[[actions]]
action = "kill_process"
field = "process.entity_id"
state = 0

[[actions]]
action = "kill_process"
field = "process.parent.entity_id"
state = 0

[[threat]]
framework = "MITRE ATT&CK"
[[threat.technique]]
id = "T1562"
name = "Impair Defenses"
reference = "https://attack.mitre.org/techniques/T1562/"
[[threat.technique.subtechnique]]
id = "T1562.006"
name = "Indicator Blocking"
reference = "https://attack.mitre.org/techniques/T1562/006/"



[threat.tactic]
id = "TA0005"
name = "Defense Evasion"
reference = "https://attack.mitre.org/tactics/TA0005/"

[internal]
min_endpoint_version = "8.10.2"