通过 Internet Explorer 的潜在命令和控制

sequence by host.id, user.name with maxspan = 5s
  [library where host.os.type == "windows" and dll.name : "IEProxy.dll" and process.name : ("rundll32.exe", "regsvr32.exe")]
  [process where host.os.type == "windows" and event.type == "start" and process.parent.name : "iexplore.exe" and process.parent.args : "-Embedding"]
  /* IE started via COM in normal conditions makes few connections, mainly to Microsoft and OCSP related domains, add FPs here */
  [network where host.os.type == "windows" and network.protocol == "dns" and process.name : "iexplore.exe" and
   not dns.question.name :
   (
    "*.microsoft.com",
    "*.digicert.com",
    "*.msocsp.com",
    "*.windowsupdate.com",
    "*.bing.com",
    "*.identrust.com",
    "*.sharepoint.com",
    "*.office365.com",
    "*.office.com"
    )
  ] /* with runs=5 */