该选项将对非标准的文件执行未知的操作。
This option performs an unspecified operation on non-standard files.
安全专家称，该病毒通过利用Windows操作系统以前的未知漏洞专门袭击西门子控制设备。
Security experts say Stuxnet attacked the software in specialized industrial control equipment made by Siemens by exploiting a previously unknown hole in the Windows operating system.
这个对话框中还标识出了未知接收者的名字，这样用户就可以采取适当的操作了。
The dialog box identifies the unknown recipient by name, so that the user can take corrective action.
应用推荐