Jonhnathan
ddb1f75352
* [New Rule] New BBR Rules - Part 2 * Update discovery_generic_account_groups.toml * Update discovery_generic_account_groups.toml * Update rules_building_block/defense_evasion_cmd_copy_binary_contents.toml Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com> * Update rules_building_block/execution_downloaded_shortcut_files.toml Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com> * Update rules_building_block/defense_evasion_cmd_copy_binary_contents.toml Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com> * Update rules_building_block/defense_evasion_unusual_process_extension.toml Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com> * Update defense_evasion_unusual_process_extension.toml --------- Co-authored-by: Ruben Groenewoud <78494512+Aegrah@users.noreply.github.com> Co-authored-by: Justin Ibarra <16747370+brokensound77@users.noreply.github.com>
75 lines
2.0 KiB
TOML
75 lines
2.0 KiB
TOML
[metadata]
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creation_date = "2020/09/02"
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integration = ["endpoint"]
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maturity = "production"
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min_stack_comments = "New fields added: required_fields, related_integrations, setup"
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min_stack_version = "8.3.0"
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updated_date = "2023/08/23"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies .lnk shortcut file downloaded from outside the local network. These shortcut files are commonly used in
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phishing campaigns.
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"""
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from = "now-119m"
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interval = "60m"
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index = ["logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Downloaded Shortcut Files"
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risk_score = 21
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rule_id = "39157d52-4035-44a8-9d1a-6f8c5f580a07"
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severity = "low"
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tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Execution", "Data Source: Elastic Defend", "Rule Type: BBR"]
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timestamp_override = "event.ingested"
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type = "eql"
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building_block_type = "default"
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query = '''
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file where host.os.type == "windows" and event.type == "creation" and file.extension == "lnk" and file.Ext.windows.zone_identifier > 1
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1204"
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name = "User Execution"
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reference = "https://attack.mitre.org/techniques/T1204/"
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[[rule.threat.technique.subtechnique]]
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id = "T1204.002"
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name = "Malicious File"
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reference = "https://attack.mitre.org/techniques/T1204/002/"
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[rule.threat.tactic]
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id = "TA0002"
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name = "Execution"
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reference = "https://attack.mitre.org/tactics/TA0002/"
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1566"
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name = "Phishing"
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reference = "https://attack.mitre.org/techniques/T1566/"
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[[rule.threat.technique.subtechnique]]
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id = "T1566.001"
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name = "Spearphishing Attachment"
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reference = "https://attack.mitre.org/techniques/T1566/001/"
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[[rule.threat.technique.subtechnique]]
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id = "T1566.002"
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name = "Spearphishing Link"
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reference = "https://attack.mitre.org/techniques/T1566/002/"
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[rule.threat.tactic]
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id = "TA0001"
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name = "Initial Access"
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reference = "https://attack.mitre.org/tactics/TA0001/"
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