通过 MSIEXEC 执行远程文件编辑

识别使用内置 Windows 安装程序 msiexec.exe 安装远程软件包的行为。攻击者可能会滥用 msiexec.exe 来启动本地或网络可访问的 MSI 文件。

规则类型: eql

规则索引:

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

严重程度: 低

风险评分: 21

每隔: 5m 运行

搜索索引时间范围: 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

参考资料: 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
  • 数据来源: Elastic Defend

版本: 3

规则作者:

  • Elastic

规则许可证: Elastic License v2

规则查询编辑

sequence with maxspan=1m
 [process where host.os.type == "windows" and event.action == "start" and
    process.name : "msiexec.exe" and process.args : "/V"] by process.entity_id
 [network where host.os.type == "windows" and process.name : "msiexec.exe" and
    event.action == "connection_attempted"] by process.entity_id
 [process where host.os.type == "windows" and event.action == "start" and
  process.parent.name : "msiexec.exe" and user.id : ("S-1-5-21-*", "S-1-5-12-1-*") and
  not process.executable : ("?:\\Windows\\SysWOW64\\msiexec.exe",
                            "?:\\Windows\\System32\\msiexec.exe",
                            "?:\\Windows\\System32\\srtasks.exe",
                            "?:\\Windows\\SysWOW64\\srtasks.exe",
                            "?:\\Windows\\System32\\taskkill.exe",
                            "?:\\Windows\\Installer\\MSI*.tmp",
                            "?:\\Program Files\\*.exe",
                            "?:\\Program Files (x86)\\*.exe",
                            "?:\\Windows\\System32\\ie4uinit.exe",
                            "?:\\Windows\\SysWOW64\\ie4uinit.exe",
                            "?:\\Windows\\System32\\sc.exe",
                            "?:\\Windows\\system32\\Wbem\\mofcomp.exe",
                            "?:\\Windows\\twain_32\\fjscan32\\SOP\\crtdmprc.exe",
                            "?:\\Windows\\SysWOW64\\taskkill.exe",
                            "?:\\Windows\\SysWOW64\\schtasks.exe",
                            "?:\\Windows\\system32\\schtasks.exe",
                            "?:\\Windows\\System32\\sdbinst.exe") and
  not (process.code_signature.subject_name == "Citrix Systems, Inc." and process.code_signature.trusted == true) and
  not (process.name : ("regsvr32.exe", "powershell.exe", "rundll32.exe", "wscript.exe") and
       process.Ext.token.integrity_level_name == "high" and
       process.args : ("?:\\Program Files\\*", "?:\\Program Files (x86)\\*")) and
  not (process.executable : ("?:\\Program Files\\*.exe", "?:\\Program Files (x86)\\*.exe") and process.code_signature.trusted == true) and
  not (process.name : "rundll32.exe" and process.args : "printui.dll,PrintUIEntry")
  ] by process.parent.entity_id

框架: MITRE ATT&CKTM