通过 COM 远程执行 XSL 脚本编辑

识别使用 Microsoft.XMLDOM COM 接口通过 Microsoft Office 进程执行托管 XSL 脚本的情况。这种行为可能表明攻击者企图在系统上执行恶意 JScript 或 VBScript。

规则类型: eql

规则索引:

  • logs-endpoint.events.process-*
  • logs-endpoint.events.library-*

严重程度: 低

风险评分: 21

: 5m

: now-9m (日期数学格式,另请参阅 其他回溯时间)

每次执行的最大警报数: 100

参考: 无

标签:

  • 领域: 端点
  • 操作系统: Windows
  • 用例: 威胁检测
  • 战术: 初始访问
  • 战术: 防御规避
  • 数据源: Elastic Defend

版本: 3

规则作者:

  • Elastic

规则许可: Elastic License v2

规则查询编辑

sequence with maxspan=1m
 [library where host.os.type == "windows" and dll.name : "msxml3.dll" and
  process.name : ("winword.exe", "excel.exe", "powerpnt.exe", "mspub.exe")] by process.entity_id
 [process where host.os.type == "windows" and event.action == "start" and
  process.parent.name : ("winword.exe", "excel.exe", "powerpnt.exe", "mspub.exe") and
  not process.executable :
        ("?:\\Windows\\System32\\WerFault.exe",
         "?:\\Windows\\SysWoW64\\WerFault.exe",
         "?:\\windows\\splwow64.exe",
         "?:\\Windows\\System32\\conhost.exe",
         "?:\\Program Files\\*.exe",
         "?:\\Program Files (x86)\\*exe")] by process.parent.entity_id

框架: MITRE ATT&CKTM