Jonhnathan
4233fef238
* win folder * Other folders * Update test_all_rules.py * . * updated missing elastic defend tags --------- Co-authored-by: terrancedejesus <terrance.dejesus@elastic.co>
111 lines
5.0 KiB
TOML
111 lines
5.0 KiB
TOML
[metadata]
|
|
creation_date = "2022/10/20"
|
|
integration = ["endpoint"]
|
|
maturity = "production"
|
|
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
|
|
min_stack_version = "8.3.0"
|
|
updated_date = "2023/08/22"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies parent process spoofing used to create an elevated child process. Adversaries may spoof the parent process
|
|
identifier (PPID) of a new process to evade process-monitoring defenses or to elevate privileges.
|
|
"""
|
|
from = "now-9m"
|
|
index = ["logs-endpoint.events.*"]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "Privileges Elevation via Parent Process PID Spoofing"
|
|
references = [
|
|
"https://gist.github.com/xpn/a057a26ec81e736518ee50848b9c2cd6",
|
|
"https://blog.didierstevens.com/2017/03/20/",
|
|
"https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-updateprocthreadattribute",
|
|
"https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1134.002/T1134.002.md",
|
|
]
|
|
risk_score = 73
|
|
rule_id = "26b01043-4f04-4d2f-882a-5a1d2e95751b"
|
|
severity = "high"
|
|
tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Privilege Escalation", "Data Source: Elastic Defend"]
|
|
timestamp_override = "event.ingested"
|
|
type = "eql"
|
|
|
|
query = '''
|
|
/* This rule is compatible with Elastic Endpoint only */
|
|
|
|
process where host.os.type == "windows" and event.action == "start" and
|
|
|
|
/* process creation via seclogon */
|
|
process.parent.Ext.real.pid > 0 and
|
|
|
|
/* PrivEsc to SYSTEM */
|
|
user.id : "S-1-5-18" and
|
|
|
|
/* Common FPs - evasion via hollowing is possible, should be covered by code injection */
|
|
not process.executable : ("?:\\Windows\\System32\\WerFault.exe",
|
|
"?:\\Windows\\SysWOW64\\WerFault.exe",
|
|
"?:\\Windows\\System32\\WerFaultSecure.exe",
|
|
"?:\\Windows\\SysWOW64\\WerFaultSecure.exe",
|
|
"?:\\Windows\\System32\\Wermgr.exe",
|
|
"?:\\Windows\\SysWOW64\\Wermgr.exe",
|
|
"?:\\Windows\\SoftwareDistribution\\Download\\Install\\securityhealthsetup.exe") and
|
|
/* Logon Utilities */
|
|
not (process.parent.executable : "?:\\Windows\\System32\\Utilman.exe" and
|
|
process.executable : ("?:\\Windows\\System32\\osk.exe",
|
|
"?:\\Windows\\System32\\Narrator.exe",
|
|
"?:\\Windows\\System32\\Magnify.exe")) and
|
|
|
|
not process.parent.executable : "?:\\Windows\\System32\\AtBroker.exe" and
|
|
|
|
not (process.code_signature.subject_name in
|
|
("philandro Software GmbH", "Freedom Scientific Inc.", "TeamViewer Germany GmbH", "Projector.is, Inc.",
|
|
"TeamViewer GmbH", "Cisco WebEx LLC", "Dell Inc") and process.code_signature.trusted == true) and
|
|
|
|
/* AM_Delta_Patch Windows Update */
|
|
not (process.executable : ("?:\\Windows\\System32\\MpSigStub.exe", "?:\\Windows\\SysWOW64\\MpSigStub.exe") and
|
|
process.parent.executable : ("?:\\Windows\\System32\\wuauclt.exe",
|
|
"?:\\Windows\\SysWOW64\\wuauclt.exe",
|
|
"?:\\Windows\\UUS\\Packages\\Preview\\*\\wuaucltcore.exe",
|
|
"?:\\Windows\\UUS\\amd64\\wuauclt.exe",
|
|
"?:\\Windows\\UUS\\amd64\\wuaucltcore.exe",
|
|
"?:\\ProgramData\\Microsoft\\Windows\\UUS\\*\\wuaucltcore.exe")) and
|
|
not (process.executable : ("?:\\Windows\\System32\\MpSigStub.exe", "?:\\Windows\\SysWOW64\\MpSigStub.exe") and process.parent.executable == null) and
|
|
|
|
/* Other third party SW */
|
|
not process.parent.executable :
|
|
("?:\\Program Files (x86)\\HEAT Software\\HEAT Remote\\HEATRemoteServer.exe",
|
|
"?:\\Program Files (x86)\\VisualCron\\VisualCronService.exe",
|
|
"?:\\Program Files\\BinaryDefense\\Vision\\Agent\\bds-vision-agent-app.exe",
|
|
"?:\\Program Files\\Tablet\\Wacom\\WacomHost.exe",
|
|
"?:\\Program Files (x86)\\LogMeIn\\x64\\LogMeIn.exe",
|
|
"?:\\Program Files (x86)\\EMC Captiva\\Captiva Cloud Runtime\\Emc.Captiva.WebCaptureRunner.exe",
|
|
"?:\\Program Files\\Freedom Scientific\\*.exe",
|
|
"?:\\Program Files (x86)\\Google\\Chrome Remote Desktop\\*\\remoting_host.exe",
|
|
"?:\\Program Files (x86)\\GoToAssist Remote Support Customer\\*\\g2ax_comm_customer.exe")
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1134"
|
|
name = "Access Token Manipulation"
|
|
reference = "https://attack.mitre.org/techniques/T1134/"
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1134.002"
|
|
name = "Create Process with Token"
|
|
reference = "https://attack.mitre.org/techniques/T1134/002/"
|
|
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1134.004"
|
|
name = "Parent PID Spoofing"
|
|
reference = "https://attack.mitre.org/techniques/T1134/004/"
|
|
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0004"
|
|
name = "Privilege Escalation"
|
|
reference = "https://attack.mitre.org/tactics/TA0004/"
|
|
|