通过 MsXsl 进行网络连接编辑

识别 msxsl.exe 进行网络连接。这可能表明存在攻击者活动,因为攻击者经常利用 msxsl.exe 执行恶意脚本并逃避检测。

规则类型: eql

规则索引:

  • winlogbeat-*
  • logs-endpoint.events.process-*
  • logs-endpoint.events.network-*
  • logs-windows.sysmon_operational-*

严重程度: 低

风险评分: 21

运行频率: 5 分钟

搜索索引范围: 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:

标签:

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

版本: 106

规则作者:

  • Elastic

规则许可证: Elastic License v2

规则查询编辑

sequence by process.entity_id
  [process where host.os.type == "windows" and process.name : "msxsl.exe" and event.type == "start"]
  [network where host.os.type == "windows" and process.name : "msxsl.exe" and
     not cidrmatch(destination.ip, "10.0.0.0/8", "127.0.0.0/8", "169.254.0.0/16", "172.16.0.0/12", "192.0.0.0/24",
       "192.0.0.0/29", "192.0.0.8/32", "192.0.0.9/32", "192.0.0.10/32", "192.0.0.170/32", "192.0.0.171/32",
       "192.0.2.0/24", "192.31.196.0/24", "192.52.193.0/24", "192.168.0.0/16", "192.88.99.0/24", "224.0.0.0/4",
       "100.64.0.0/10", "192.175.48.0/24","198.18.0.0/15", "198.51.100.0/24", "203.0.113.0/24", "240.0.0.0/4", "::1",
       "FE80::/10", "FF00::/8")]

框架: MITRE ATT&CKTM