异常进程扩展编辑

识别运行具有异常扩展名的进程,这些扩展名通常对 Windows 可执行文件无效。

规则类型: eql

规则索引:

  • logs-endpoint.events.process-*

严重性: 低

风险评分: 21

: 60m 运行

: now-119m 搜索索引 (日期数学格式,另请参见 附加回溯时间)

每次执行的最大告警数: 100

参考资料: 无

标签:

  • 领域: 端点
  • 操作系统: Windows
  • 用例: 威胁检测
  • 战术: 防御逃避
  • 数据源: Elastic Defend
  • 规则类型: BBR

版本: 4

规则作者:

  • Elastic

规则许可证: Elastic 许可证 v2

规则查询编辑

process where host.os.type == "windows" and event.type == "start" and
  process.executable : "?*" and
  not process.name : ("*.exe", "*.com", "*.scr", "*.tmp", "*.dat") and
  not process.executable :
    (
      "MemCompression",
      "Registry",
      "vmmem",
      "vmmemWSL",
      "?:\\Program Files\\Dell\\SupportAssistAgent\\*.p5x",
      "?:\\Program Files\\Docker\\Docker\\com.docker.service",
      "?:\\Users\\*\\AppData\\Local\\Intel\\AGS\\Libs\\AGSRunner.bin",
      "\\Device\\Mup\\*\\Software Management\\Select.Html.dep",
      "?:\\DJJApplications\\MedicalRecords\\bin\\Select.Html.dep",
      "?:\\ProgramData\\Software Management\\Select.Html.dep",
      "?:\\Program Files (x86)\\EnCase Applications\\Examiner Service\\EnCase64\\enhkey.dll",
      "?:\\Program Files (x86)\\Panda Security\\WAC\\PSNAEInj64.dll",
      "?:\\Program Files (x86)\\Johnson Controls\\LicenseActivator\\crp32002.ngn"
    ) and
  not (
    (process.name : "C9632CF058AE4321B6B0B5EA39B710FE" and process.code_signature.subject_name == "Dell Inc") or
    (process.name : "*.upd" and process.code_signature.subject_name == "Bloomberg LP") or
    (process.name: "FD552E21-686E-413C-931D-3B82A9D29F3B" and process.code_signature.subject_name: "Adobe Inc.") or
    (process.name: "3B91051C-AE82-43C9-BCEF-0309CD2DD9EB" and process.code_signature.subject_name: "McAfee, LLC") or
    (process.name: "soffice.bin" and process.code_signature.subject_name: "The Document Foundation") or
    (process.name: ("VeeamVixProxy_*", "{????????-????-????-????-????????????}") and process.code_signature.subject_name: "Veeam Software Group GmbH") or
    (process.name: "1cv8p64.bin" and process.code_signature.subject_name: "LLC 1C-Soft") or
    (process.name: "AGSRunner.bin" and process.code_signature.subject_name: "Intel Corporation")
  )

框架: MITRE ATT&CKTM