可疑的 Microsoft 诊断向导执行

编辑

识别潜在的 Microsoft 诊断疑难解答向导 (MSDT) 的滥用情况,通过恶意进程参数代理恶意命令或二进制文件的执行。

规则类型: eql

规则索引:

  • logs-endpoint.events.process-*
  • winlogbeat-*
  • logs-windows.sysmon_operational-*
  • endgame-*
  • logs-m365_defender.event-*

严重性: 高

风险评分: 73

: 5 分钟运行一次

搜索索引自: now-9m (日期数学格式,另请参见 额外回溯时间)

每次执行的最大告警数: 100

参考资料:

标签:

  • 领域:终端
  • 操作系统:Windows
  • 用例:威胁检测
  • 战术:防御规避
  • 数据源:Elastic Endgame
  • 数据源:Elastic Defend
  • 数据源:Microsoft Defender for Endpoint
  • 数据源:Sysmon

版本: 210

规则作者:

  • Elastic

规则许可证: Elastic License v2

规则查询

编辑
process where host.os.type == "windows" and event.type == "start" and
   (process.pe.original_file_name == "msdt.exe" or process.name : "msdt.exe") and
   (
    process.args : ("IT_RebrowseForFile=*", "ms-msdt:/id", "ms-msdt:-id", "*FromBase64*") or

    (process.args : "-af" and process.args : "/skip" and
     process.parent.name : ("explorer.exe", "cmd.exe", "powershell.exe", "cscript.exe", "wscript.exe", "mshta.exe", "rundll32.exe", "regsvr32.exe") and
     process.args : ("?:\\WINDOWS\\diagnostics\\index\\PCWDiagnostic.xml", "PCWDiagnostic.xml", "?:\\Users\\Public\\*", "?:\\Windows\\Temp\\*")) or

    (process.pe.original_file_name == "msdt.exe" and not process.name : "msdt.exe" and process.name != null) or

    (process.pe.original_file_name == "msdt.exe" and not process.executable : ("?:\\Windows\\system32\\msdt.exe", "?:\\Windows\\SysWOW64\\msdt.exe"))
    )

框架: MITRE ATT&CKTM