Justin Ibarra
59da2da474
* add unit tests to ensure host type and platform are included * add host.os.name 'linux' to all linux rules * add host.os.name macos to mac rules * add host.os.name to windows rules; fix linux dates * update from host.os.name to host.os.type Co-authored-by: brokensound77 <brokensound77@users.noreply.github.com> Co-authored-by: Jonhnathan <26856693+w0rk3r@users.noreply.github.com>
78 lines
2.3 KiB
TOML
78 lines
2.3 KiB
TOML
[metadata]
|
|
creation_date = "2020/09/02"
|
|
integration = ["endpoint", "windows"]
|
|
maturity = "development"
|
|
query_schema_validation = false
|
|
updated_date = "2023/02/22"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies .lnk shortcut file downloaded from outside the local network. These shortcut files are commonly used in
|
|
phishing campaigns.
|
|
"""
|
|
from = "now-9m"
|
|
index = ["logs-endpoint.events.*", "winlogbeat-*", "logs-windows.*"]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "Downloaded Shortcut Files"
|
|
risk_score = 21
|
|
rule_id = "6b1fd8e8-cefe-444c-bc4d-feaa2c497347"
|
|
severity = "low"
|
|
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Execution"]
|
|
type = "eql"
|
|
|
|
query = '''
|
|
/* leaving in development pending `file.Ext.windows.zone_identifier` landing in ECS then endpoint */
|
|
|
|
sequence by process.entity_id with maxspan=2s
|
|
/* file.extension added to endpoint fields for 7.10 */
|
|
[file where host.os.type == "windows" and event.type == "creation" and file.extension == "lnk"]
|
|
/* not sure yet how the update will capture ADS */
|
|
[file where host.os.type == "windows" and event.type == "creation" and file.extension == "lnk:Zone.Identifier" and
|
|
/* non-ECS field - may disqualify conversion */
|
|
file.Ext.windows.zone_identifier > 1]
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1204"
|
|
name = "User Execution"
|
|
reference = "https://attack.mitre.org/techniques/T1204/"
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1204.002"
|
|
name = "Malicious File"
|
|
reference = "https://attack.mitre.org/techniques/T1204/002/"
|
|
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0002"
|
|
name = "Execution"
|
|
reference = "https://attack.mitre.org/tactics/TA0002/"
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1566"
|
|
name = "Phishing"
|
|
reference = "https://attack.mitre.org/techniques/T1566/"
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1566.001"
|
|
name = "Spearphishing Attachment"
|
|
reference = "https://attack.mitre.org/techniques/T1566/001/"
|
|
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1566.002"
|
|
name = "Spearphishing Link"
|
|
reference = "https://attack.mitre.org/techniques/T1566/002/"
|
|
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0001"
|
|
name = "Initial Access"
|
|
reference = "https://attack.mitre.org/tactics/TA0001/"
|
|
|