Terrance DeJesus
4312d8c958
* initial commit * addressing flake errors * added apm to _get_packagted_integrations logic * addressed flake errors * adjusted integration schema and updated rules to be a list * updated several rules and removed a unit test * updated rules with logs-* only index patterns * Update tests/test_all_rules.py Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com> * addressed flake errors * integration is none is windows, endpoint or apm * adding rules with accepted incoming changes from main * fixed tag and tactic alignment errors from unit testing * adjusted unit testing logic for integration tags; added more exclusion rules * adjusted test_integration logic to be rule resistent and skip if -8.3 * adjusted comments for unit test skip * fixed merge conflicts from main * changing test_integration_tag to remove logic for rule version comparisons * added integration tag to new rule * adjusted rules updated_date value * ignore guided onboarding rule in unit tests * added integration tag to new rule Co-authored-by: Mika Ayenson <Mikaayenson@users.noreply.github.com>
57 lines
1.9 KiB
TOML
57 lines
1.9 KiB
TOML
[metadata]
|
|
creation_date = "2020/11/29"
|
|
integration = ["endpoint", "windows"]
|
|
maturity = "production"
|
|
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
|
|
min_stack_version = "8.3.0"
|
|
updated_date = "2022/12/14"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
A scheduled task was created by a Windows script via cscript.exe, wscript.exe or powershell.exe. This can be abused by
|
|
an adversary to establish persistence.
|
|
"""
|
|
false_positives = ["Legitimate scheduled tasks may be created during installation of new software."]
|
|
from = "now-9m"
|
|
index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*"]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "Scheduled Task Created by a Windows Script"
|
|
note = """## Triage and analysis
|
|
|
|
Decode the base64 encoded Tasks Actions registry value to investigate the task's configured action."""
|
|
risk_score = 47
|
|
rule_id = "689b9d57-e4d5-4357-ad17-9c334609d79a"
|
|
severity = "medium"
|
|
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Persistence"]
|
|
type = "eql"
|
|
|
|
query = '''
|
|
sequence by host.id with maxspan = 30s
|
|
[any where (event.category == "library" or (event.category == "process" and event.action : "Image loaded*")) and
|
|
(dll.name : "taskschd.dll" or file.name : "taskschd.dll") and
|
|
process.name : ("cscript.exe", "wscript.exe", "powershell.exe", "pwsh.exe", "powershell_ise.exe")]
|
|
[registry where registry.path : "HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tasks\\*\\Actions"]
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1053"
|
|
name = "Scheduled Task/Job"
|
|
reference = "https://attack.mitre.org/techniques/T1053/"
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1053.005"
|
|
name = "Scheduled Task"
|
|
reference = "https://attack.mitre.org/techniques/T1053/005/"
|
|
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0003"
|
|
name = "Persistence"
|
|
reference = "https://attack.mitre.org/tactics/TA0003/"
|
|
|