Elastic 代理服务终止编辑

识别 Elastic 端点代理已停止,并且不再在主机上运行。攻击者可能会尝试禁用安全监控工具,以试图在入侵期间逃避检测或防御功能。这也可能表明代理本身存在问题,应该予以解决,以确保防御措施恢复到稳定状态。

规则类型: eql

规则索引:

  • logs-endpoint.events.*

严重程度: 中

风险评分: 47

运行频率: 5 分钟

搜索索引的时间范围: now-9m (日期数学格式,另请参阅 额外回溯时间

每次执行的最大警报数: 100

参考: 无

标签:

  • 域: 端点
  • 操作系统: Linux
  • 操作系统: Windows
  • 操作系统: macOS
  • 用例: 威胁检测
  • 战术: 防御规避
  • 数据源: Elastic Defend

版本: 106

规则作者:

  • Elastic

规则许可证: Elastic 许可证 v2

设置编辑

设置

如果在非 elastic-agent 索引(例如 beats)上启用 EQL 规则(版本 <8.2),则事件不会定义 event.ingested,并且在 8.2 版本之前没有添加 EQL 规则的默认回退。因此,为了使此规则有效工作,用户需要添加自定义摄取管道以将 event.ingested 填充到 @timestamp。有关添加自定义摄取管道的更多详细信息,请参阅 - https://elastic.ac.cn/guide/en/fleet/current/data-streams-pipeline-tutorial.html

规则查询编辑

process where
/* net, sc or wmic stopping or deleting Elastic Agent on Windows */
(event.type == "start" and
  process.name : ("net.exe", "sc.exe", "wmic.exe","powershell.exe","taskkill.exe","PsKill.exe","ProcessHacker.exe") and
  process.args : ("stopservice","uninstall", "stop", "disabled","Stop-Process","terminate","suspend") and
  process.args : ("elasticendpoint", "Elastic Agent","elastic-agent","elastic-endpoint"))
or
/* service or systemctl used to stop Elastic Agent on Linux */
(event.type == "end" and
  (process.name : ("systemctl", "service") and
    process.args : "elastic-agent" and
    process.args : "stop")
  or
  /* pkill , killall used to stop Elastic Agent on Linux */
  ( event.type == "end" and process.name : ("pkill", "killall") and process.args: "elastic-agent")
  or
  /* Unload Elastic Agent extension on MacOS */
  (process.name : "kextunload" and
    process.args : "com.apple.iokit.EndpointSecurity" and
    event.action : "end"))

框架: MITRE ATT&CKTM