We know that under Windows it is not possible to "aux|prn|con|nul|com1|com2|com3|com4|com5|com6|com7|com8|com9|lpt1|lpt2|lpt3|lpt4|lpt5|lpt6| Lpt7|lpt8|lpt9 "These systems retain filenames to name files or folders, but can be implemented by using the Copy command by typing in cmd
Copy E:\Web\asp\wwwroot\wap.asp \.\e:\web\asp\wwwroot\lpt2.wap.asp
The wap.asp named Lpt2.wap.asp, remember must have \.\, otherwise the "system cannot find the specified file" prompt, and such a file in IIS can be successfully resolved, Webshell undead Trojan Horse back door is the use of this principle to hide the back door, This undead horse can not be deleted at all in the graphical interface, only through CMD input
Del \.\e:\web\asp\wwwroot\lpt2.wap.asp
command to delete, where "\.\" is required
Undead Zombie Trojan lpt7.asp.asp and lpt5.cnzzz.asp removal method