通过内存转储文件创建潜在凭证访问

编辑

通过内存转储文件创建潜在凭证访问编辑

识别中型内存转储文件的创建或修改,这可能表明尝试从进程内存访问凭证。

规则类型: eql

规则索引:

  • logs-endpoint.events.file-*

严重性: 低

风险评分: 21

每隔运行: 5m

从以下时间开始搜索索引: now-9m (日期数学格式,另请参见 附加回溯时间)

每次执行的最大警报数: 100

参考: 无

标签:

  • 域:端点
  • 操作系统:Windows
  • 用例:威胁检测
  • 策略:凭证访问
  • 数据源:Elastic Defend
  • 规则类型:BBR

版本: 3

规则作者:

  • Elastic

规则许可证: Elastic 许可证 v2

规则查询编辑

file where host.os.type == "windows" and event.type == "creation" and

  /* MDMP header */
  file.Ext.header_bytes : "4d444d50*" and file.size >= 30000 and
  not

  (
    (
      process.name : "System" or
      process.executable : (
        "?:\\Windows\\System32\\WerFault.exe",
        "?:\\Windows\\SysWOW64\\WerFault.exe",
        "?:\\Windows\\System32\\Wermgr.exe",
        "?:\\Windows\\SysWOW64\\Wermgr.exe",
        "?:\\Windows\\System32\\WerFaultSecure.exe",
        "?:\\Windows\\SysWOW64\\WerFaultSecure.exe",
        "?:\\Windows\\System32\\WUDFHost.exe",
        "C:\\Windows\\System32\\rdrleakdiag.exe",
        "?:\\Windows\\System32\\Taskmgr.exe",
        "?:\\Windows\\SysWOW64\\Taskmgr.exe",
        "?:\\Program Files\\*.exe",
        "?:\\Program Files (x86)\\*.exe",
        "?:\\Windows\\SystemApps\\*.exe",
        "?:\\Users\\*\\AppData\\Roaming\\Zoom\\bin\\zCrashReport64.exe",
        "?:\\Windows\\CCM\\ccmdump.exe"
      ) and process.code_signature.trusted == true
    ) or
    (
      file.path : (
        "?:\\ProgramData\\Microsoft\\Windows\\WER\\*",
        "?:\\ProgramData\\Microsoft\\WDF\\*",
        "?:\\ProgramData\\Alteryx\\ErrorLogs\\*",
        "?:\\ProgramData\\Goodix\\*",
        "?:\\Windows\\system32\\config\\systemprofile\\AppData\\Local\\CrashDumps\\*",
        "?:\\Users\\*\\AppData\\Roaming\\Zoom\\logs\\zoomcrash*",
        "?:\\Users\\*\\AppData\\*\\Crashpad\\*",
        "?:\\Users\\*\\AppData\\*\\crashpaddb\\*",
        "?:\\Users\\*\\AppData\\*\\HungReports\\*",
        "?:\\Users\\*\\AppData\\*\\CrashDumps\\*",
        "?:\\Users\\*\\AppData\\*\\NativeCrashReporting\\*"
      ) and (process.code_signature.trusted == true or process.executable == null)
    )
  )

框架: MITRE ATT&CKTM