Ruben Groenewoud
d41855a2ac
* [New Rules] DDExec Analysis * Increased rule scope * [New Rule] Dynamic Linker Discovery via od * Revert "[New Rule] Dynamic Linker Discovery via od" This reverts commit c58595b77f517d3f236a64a52c38804253db64cc. * [New Rule] Dynamic Linker Discovery via od * [New Rule] Potential Memory Seeking Activity * [New BBR] Suspicious Memory grep Activity * Added endgame + auditd_manager support * Removed auditd_manager support for now * Removed auditd_manager support for now * Update discovery_suspicious_memory_grep_activity.toml --------- Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
58 lines
1.8 KiB
TOML
58 lines
1.8 KiB
TOML
[metadata]
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bypass_bbr_timing = true
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creation_date = "2024/02/01"
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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 = "2024/02/01"
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[rule]
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author = ["Elastic"]
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building_block_type = "default"
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description = """
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Monitors for the execution of Unix utilities that may be leveraged as memory address seekers. Attackers may leverage
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built-in utilities to seek specific memory addresses, allowing for potential future manipulation/exploitation.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.*", "endgame-*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Potential Memory Seeking Activity"
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references = ["https://github.com/arget13/DDexec"]
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risk_score = 21
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rule_id = "035a6f21-4092-471d-9cda-9e379f459b1e"
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severity = "low"
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tags = [
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"Domain: Endpoint",
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"OS: Linux",
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"Use Case: Threat Detection",
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"Tactic: Discovery",
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"Rule Type: BBR",
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"Data Source: Elastic Defend",
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"Data Source: Elastic Endgame"
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]
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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.action in ("exec", "exec_event") and event.type == "start" and (
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(process.name == "tail" and process.args == "-c") or
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(process.name == "cmp" and process.args == "-i") or
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(process.name in ("hexdump", "xxd") and process.args == "-s") or
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(process.name == "dd" and process.args : ("skip*", "seek*"))
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)
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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 = "T1057"
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name = "Process Discovery"
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reference = "https://attack.mitre.org/techniques/T1057/"
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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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