通过 MsXsl 建立网络连接

编辑

识别 msxsl.exe 建立网络连接的情况。这可能表明存在恶意活动,因为 msxsl.exe 通常被攻击者利用来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

每隔: 5 分钟

搜索索引范围: 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:

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: 206

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