Jonhnathan
0e337e2c36
* [New Rule] New BBR Rules - Part 4 * Apply suggestions from code review Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com> --------- Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
53 lines
1.6 KiB
TOML
53 lines
1.6 KiB
TOML
[metadata]
|
|
creation_date = "2023/08/24"
|
|
integration = ["endpoint"]
|
|
maturity = "production"
|
|
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
|
|
min_stack_version = "8.3.0"
|
|
updated_date = "2023/08/24"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
InstallUtil is a command-line utility that allows for installation and uninstallation of resources by executing specific
|
|
installer components specified in .NET binaries. Adversaries may use InstallUtil to proxy the execution of code through
|
|
a trusted Windows utility.
|
|
"""
|
|
from = "now-119m"
|
|
interval = "60m"
|
|
index = ["logs-endpoint.events.*"]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "InstallUtil Activity"
|
|
risk_score = 21
|
|
rule_id = "90babaa8-5216-4568-992d-d4a01a105d98"
|
|
severity = "low"
|
|
tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Defense Evasion", "Data Source: Elastic Defend", "Rule Type: BBR"]
|
|
timestamp_override = "event.ingested"
|
|
building_block_type = "default"
|
|
type = "eql"
|
|
|
|
query = '''
|
|
process where host.os.type == "windows" and event.type == "start" and
|
|
process.name : "installutil.exe" and not user.id : "S-1-5-18"
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1218"
|
|
name = "System Binary Proxy Execution"
|
|
reference = "https://attack.mitre.org/techniques/T1218/"
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1218.004"
|
|
name = "InstallUtil"
|
|
reference = "https://attack.mitre.org/techniques/T1218/004/"
|
|
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0005"
|
|
name = "Defense Evasion"
|
|
reference = "https://attack.mitre.org/tactics/TA0005/"
|