Ruben Groenewoud
50 lines
1.9 KiB
TOML
50 lines
1.9 KiB
TOML
[metadata]
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creation_date = "2023/08/28"
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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 = "2023/08/28"
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[rule]
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author = ["Elastic"]
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description = """
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This rule monitors a sequence involving a program compilation event followed by its execution and a subsequent
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alteration of UID permissions to root privileges. This behavior can potentially indicate the execution of a kernel or
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software privilege escalation exploit.
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"""
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from = "now-9m"
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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 = "Potential Privilege Escalation via Recently Compiled Executable"
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risk_score = 47
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rule_id = "193549e8-bb9e-466a-a7f9-7e783f5cb5a6"
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severity = "medium"
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tags = ["Domain: Endpoint", "OS: Linux", "Use Case: Threat Detection", "Tactic: Privilege Escalation", "Use Case: Vulnerability", "Data Source: Elastic Defend"]
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type = "eql"
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query = '''
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sequence by host.id with maxspan=1m
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[process where host.os.type == "linux" and event.action == "exec" and event.type == "start" and
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process.name in ("gcc", "g++", "cc") and user.id != "0"] by process.args
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[file where host.os.type == "linux" and event.action == "creation" and event.type == "creation" and
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process.name == "ld" and user.id != "0"] by file.name
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[process where host.os.type == "linux" and event.action == "exec" and event.type == "start" and
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user.id != "0"] by process.name
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[process where host.os.type == "linux" and event.action in ("uid_change", "guid_change") and event.type == "change" and
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user.id == "0"] by process.name
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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 = "T1068"
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name = "Exploitation for Privilege Escalation"
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reference = "https://attack.mitre.org/techniques/T1068/"
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[rule.threat.tactic]
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id = "TA0004"
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name = "Privilege Escalation"
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reference = "https://attack.mitre.org/tactics/TA0004/"
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