shashank-elastic
72 lines
2.2 KiB
TOML
72 lines
2.2 KiB
TOML
[metadata]
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bypass_bbr_timing = true
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creation_date = "2023/08/29"
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integration = ["endpoint"]
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maturity = "production"
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updated_date = "2024/05/21"
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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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Identifies shortcut files written to or modified in the startup folder. Adversaries may use this technique to maintain
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persistence.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.file-*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Shortcut File Written or Modified on Startup Folder"
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risk_score = 21
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rule_id = "ee53d67a-5f0c-423c-a53c-8084ae562b5c"
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severity = "low"
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tags = [
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"Domain: Endpoint",
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"OS: Windows",
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"Use Case: Threat Detection",
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"Tactic: Persistence",
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"Data Source: Elastic Defend",
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"Rule Type: BBR",
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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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file where host.os.type == "windows" and event.type != "deletion" and file.extension == "lnk" and
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file.path : (
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"C:\\Users\\*\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\*",
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"C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\StartUp\\*"
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) and
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not (
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(process.name : "ONENOTE.EXE" and process.code_signature.status: "trusted" and file.name : "*OneNote.lnk") or
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(process.name : "OktaVerifySetup.exe" and process.code_signature.status: "trusted" and file.name : "Okta Verify.lnk") or
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(process.name : "OneLaunch.exe" and process.code_signature.status: "trusted" and file.name : "OneLaunch*.lnk") or
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(process.name : "APPServerClient.exe" and process.code_signature.status: "trusted" and file.name : "Parallels Client.lnk")
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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 = "T1547"
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name = "Boot or Logon Autostart Execution"
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reference = "https://attack.mitre.org/techniques/T1547/"
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[[rule.threat.technique.subtechnique]]
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id = "T1547.001"
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name = "Registry Run Keys / Startup Folder"
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reference = "https://attack.mitre.org/techniques/T1547/001/"
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[[rule.threat.technique.subtechnique]]
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id = "T1547.009"
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name = "Shortcut Modification"
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reference = "https://attack.mitre.org/techniques/T1547/009/"
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[rule.threat.tactic]
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id = "TA0003"
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name = "Persistence"
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reference = "https://attack.mitre.org/tactics/TA0003/"
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