Ruben Groenewoud
7d64dc2a87
* [Rule Tunings] Kernel Module Enumeration / Removal * [Rule Tunings] Kernel Module Enumeration and Removal * Deleted copy of wrong file * EQL Conversion and made the rule more resilient * Converted rules to EQL and made rules more resilient * Removed unwanted rule from PR * fixed unit tests * fixed unit testing, removed endgame support * Added a rule to detect kernel module enum via proc * Did some additional tuning, 0 hits in RedSector now
56 lines
1.9 KiB
TOML
56 lines
1.9 KiB
TOML
[metadata]
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creation_date = "2020/04/23"
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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 = "2023/06/08"
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[rule]
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author = ["Elastic"]
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description = """
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Loadable Kernel Modules (or LKMs) are pieces of code that can be loaded and unloaded into the kernel upon demand. They
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extend the functionality of the kernel without the need to reboot the system. This identifies attempts to enumerate
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information about a kernel module.
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"""
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false_positives = [
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"""
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Security tools and device drivers may run these programs in order to enumerate kernel modules. Use of these programs
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by ordinary users is uncommon. These can be exempted by process name or username.
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""",
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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 = "Enumeration of Kernel Modules"
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risk_score = 47
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rule_id = "2d8043ed-5bda-4caf-801c-c1feb7410504"
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severity = "medium"
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tags = ["Elastic", "Host", "Linux", "Threat Detection", "Discovery"]
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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 host.os.type == "linux" and event.type == "start" and
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((process.name == "kmod" and process.args == "list") or (process.name == "modinfo" and process.parent.user.id != "0") or
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(process.name == "depmod" and process.args in ("--all", "-a") and process.parent.user.id != "0")
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or process.name == "lsmod") and not process.parent.name : ("vboxmanage", "virtualbox", "prime-offload", "vboxdrv.sh") and not
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process.group_leader.name : "qualys-cloud-agent"
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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 = "T1082"
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name = "System Information Discovery"
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reference = "https://attack.mitre.org/techniques/T1082/"
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[rule.threat.tactic]
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id = "TA0007"
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name = "Discovery"
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reference = "https://attack.mitre.org/tactics/TA0007/"
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