Jonhnathan
f584fb6e31
* [Security Content] Adjust Mitre Att&ck Mappings - Windows Rules * Fix dates * Fix unit test errors * updated tags and fixed branch conflicts updated tags and fixed branch conflicts * description nit * Reverting unintended changes * Update initial_access_suspicious_ms_office_child_process.toml --------- Co-authored-by: imays11 <59296946+imays11@users.noreply.github.com>
79 lines
2.5 KiB
TOML
79 lines
2.5 KiB
TOML
[metadata]
|
|
creation_date = "2020/09/02"
|
|
integration = ["endpoint", "windows"]
|
|
maturity = "development"
|
|
updated_date = "2023/10/13"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies User Account Control (UAC) bypass via sdclt.exe. Attackers bypass UAC to stealthily execute code with
|
|
elevated permissions.
|
|
"""
|
|
from = "now-9m"
|
|
index = ["logs-endpoint.events.*", "winlogbeat-*", "logs-windows.*"]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "Bypass UAC via Sdclt"
|
|
risk_score = 73
|
|
rule_id = "9b54e002-034a-47ac-9307-ad12c03fa900"
|
|
severity = "high"
|
|
tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Privilege Escalation", "Tactic: Defense Evasion", "Data Source: Elastic Defend"]
|
|
type = "eql"
|
|
|
|
query = '''
|
|
/* add winlogbeat-* when process.code_signature.* fields are populated */
|
|
/* still needs testing, applicable binary was not available on test machine */
|
|
|
|
sequence with maxspan=1m
|
|
[process where host.os.type == "windows" and event.type == "start" and process.name : "sdclt.exe" and
|
|
/* uncomment once in winlogbeat */
|
|
/* process.code_signature.subject_name == "Microsoft Corporation" and process.code_signature.trusted == true and */
|
|
process.args : "/kickoffelev"
|
|
] by process.entity_id
|
|
[process where host.os.type == "windows" and event.type == "start" and process.parent.name : "sdclt.exe" and
|
|
not (process.executable : "C:\\Windows\\System32\\sdclt.exe" or
|
|
process.executable : "C:\\Windows\\System32\\control.exe" or
|
|
process.executable : "C:\\Windows\\SysWOW64\\sdclt.exe" or
|
|
process.executable : "C:\\Windows\\SysWOW64\\control.exe")
|
|
] by process.parent.entity_id
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1548"
|
|
name = "Abuse Elevation Control Mechanism"
|
|
reference = "https://attack.mitre.org/techniques/T1548/"
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1548.002"
|
|
name = "Bypass User Account Control"
|
|
reference = "https://attack.mitre.org/techniques/T1548/002/"
|
|
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0004"
|
|
name = "Privilege Escalation"
|
|
reference = "https://attack.mitre.org/tactics/TA0004/"
|
|
|
|
[[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 = "T1218.014"
|
|
name = "MMC"
|
|
reference = "https://attack.mitre.org/techniques/T1218/014/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0005"
|
|
name = "Defense Evasion"
|
|
reference = "https://attack.mitre.org/tactics/TA0005/"
|
|
|