shashank-elastic
62 lines
2.0 KiB
TOML
62 lines
2.0 KiB
TOML
[metadata]
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creation_date = "2020/11/03"
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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 = "2023/10/19"
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[rule]
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author = ["Elastic"]
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description = """
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Timestomping is an anti-forensics technique which is used to modify the timestamps of a file, often to mimic files that
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are in the same folder.
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"""
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from = "now-9m"
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index = ["auditbeat-*", "logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License v2"
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max_signals = 33
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name = "Timestomping using Touch Command"
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risk_score = 47
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rule_id = "b0046934-486e-462f-9487-0d4cf9e429c6"
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setup = """
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If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2,
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events will not define `event.ingested` and default fallback for EQL rules was not added until version 8.2.
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Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate
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`event.ingested` to @timestamp.
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For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html
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"""
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severity = "medium"
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tags = ["Domain: Endpoint", "OS: Linux", "OS: macOS", "Use Case: Threat Detection", "Tactic: Defense Evasion", "Data Source: Elastic Defend"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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process where event.type == "start" and
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process.name : "touch" and user.id != "0" and
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process.args : ("-r", "-t", "-a*","-m*") and
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not process.args : ("/usr/lib/go-*/bin/go", "/usr/lib/dracut/dracut-functions.sh", "/tmp/KSInstallAction.*/m/.patch/*")
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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 = "T1070"
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name = "Indicator Removal"
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reference = "https://attack.mitre.org/techniques/T1070/"
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[[rule.threat.technique.subtechnique]]
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id = "T1070.006"
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name = "Timestomp"
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reference = "https://attack.mitre.org/techniques/T1070/006/"
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[rule.threat.tactic]
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id = "TA0005"
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name = "Defense Evasion"
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reference = "https://attack.mitre.org/tactics/TA0005/"
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