System Binary Proxy Execution via ScriptRunner

[rule]
description = """
Identifies the execution of a command or binary via the Windows Script Runner utility. Adversaries may bypass process
and signature-based defenses by proxying execution of malicious content with signed, or otherwise trusted, binaries.
"""
id = "06773783-0083-429d-863e-a85719a6cb05"
license = "Elastic License v2"
name = "System Binary Proxy Execution via ScriptRunner"
os_list = ["windows"]
reference = ["https://lolbas-project.github.io/lolbas/Binaries/Scriptrunner/"]
version = "1.0.4"

query = '''
process where event.action == "start" and
  (process.parent.name : "ScriptRunner.exe" and process.parent.args : "-appvscript") and 
  not (process.executable : "?:\\Windows\\Sys*\\conhost.exe" and process.args : "0xffffffff")
'''

min_endpoint_version = "7.15.0"
[[actions]]
action = "kill_process"
field = "process.entity_id"
state = 0

[[optional_actions]]
action = "rollback"
field = "process.entity_id"
state = 0

[[threat]]
framework = "MITRE ATT&CK"
[[threat.technique]]
id = "T1218"
name = "System Binary Proxy Execution"
reference = "https://attack.mitre.org/techniques/T1218/"


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

[internal]
min_endpoint_version = "7.15.0"