Files
sigma-rules/rules/windows/execution_downloaded_url_file.toml
T
Jonhnathan c2d1586270 [Rule Tuning] Windows BBR Promotion (#3577)
* [Rule Tuning] Windows BBR Promotion

* Update non-ecs-schema.json

* Update persistence_netsh_helper_dll.toml

* Update persistence_werfault_reflectdebugger.toml

* Update privilege_escalation_unquoted_service_path.toml

* Update defense_evasion_msdt_suspicious_diagcab.toml

* Update defense_evasion_suspicious_msiexec_execution.toml

* Update discovery_security_software_wmic.toml

* Revert "Update defense_evasion_msdt_suspicious_diagcab.toml"

This reverts commit 0e1f3ea3e18a146c421a5bda784633cca4a2b0c0.

* Revert "Update defense_evasion_suspicious_msiexec_execution.toml"

This reverts commit 4e26a167774ad712d19334a4c2c712cc1d550e7f.

* Revert "Update discovery_security_software_wmic.toml"

This reverts commit d638cec354a46cacab1e62596f4ad939a1d9c32a.

---------

Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com>
Co-authored-by: Terrance DeJesus <99630311+terrancedejesus@users.noreply.github.com>
2024-04-16 09:28:17 -03:00

68 lines
1.8 KiB
TOML

[metadata]
creation_date = "2020/09/02"
integration = ["endpoint"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2024/04/05"
[rule]
author = ["Elastic"]
description = """
Identifies .url shortcut files downloaded from outside the local network. These shortcut files are commonly used in
phishing campaigns.
"""
from = "now-9m"
index = ["logs-endpoint.events.file-*"]
language = "eql"
license = "Elastic License v2"
name = "Downloaded URL Files"
risk_score = 21
rule_id = "cd82e3d6-1346-4afd-8f22-38388bbf34cb"
severity = "low"
tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Execution", "Data Source: Elastic Defend", "Rule Type: BBR"]
timestamp_override = "event.ingested"
type = "eql"
query = '''
file where host.os.type == "windows" and event.type == "creation" and file.extension == "url"
and file.Ext.windows.zone_identifier > 1 and not process.name : "explorer.exe"
'''
[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1204"
name = "User Execution"
reference = "https://attack.mitre.org/techniques/T1204/"
[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/"