Terrance DeJesus
06319b7a13
* updating ES|QL rules to include KEEP command * fixed some ES|QL rules with typos; added validation for KEEP command * fixed ES|QL errors from missing fields * fixed flake errors * updated date * added best practices to hunt docs
60 lines
1.7 KiB
TOML
60 lines
1.7 KiB
TOML
[metadata]
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creation_date = "2024/05/08"
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maturity = "production"
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updated_date = "2024/10/09"
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min_stack_comments = "ES|QL rule type is still in technical preview as of 8.13, however this rule was tested successfully"
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min_stack_version = "8.13.0"
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[rule]
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author = ["Elastic"]
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description = """
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This rule uses alert data to determine when a malware signature is triggered in multiple hosts. Analysts can use this
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to prioritize triage and response, as this can potentially indicate a widespread malware infection.
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"""
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from = "now-9m"
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language = "esql"
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license = "Elastic License v2"
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name = "Potential Widespread Malware Infection Across Multiple Hosts"
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references = [
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"https://github.com/elastic/protections-artifacts/tree/main/yara/rules"
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]
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risk_score = 73
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rule_id = "28371aa1-14ed-46cf-ab5b-2fc7d1942278"
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severity = "high"
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tags = [
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"Domain: Endpoint",
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"Data Source: Elastic Defend",
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"Use Case: Threat Detection",
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"Tactic: Execution",
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"Rule Type: Higher-Order Rule"
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]
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timestamp_override = "event.ingested"
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type = "esql"
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query = '''
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from logs-endpoint.alerts-*
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| where event.code in ("malicious_file", "memory_signature", "shellcode_thread") and rule.name is not null
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| keep host.id, rule.name, event.code
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| stats hosts = count_distinct(host.id) by rule.name, event.code
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| where hosts >= 3
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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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