当IIS启动CGI应用程序时，缺省用CreateProcessAsUser API来创建该CGI的新Process,该程序的安全上下文就由启动该CGI的用户决定。一般匿名用户都映射到IUSR_computername这个账号，当然可以由管理员改为其他的用户。或者由浏览器提供一个合法的用户。两者的用户的权限都是比较低，可能都属于guest组的成员。其实我们可以修改iis开启CGI的方式，来提高权限。我们来看iis主进程本身是运行在localsystem账号下的，所以我们就可以得到最高localsystem的权限。

　　入侵web服务器后，一般都可以绑定一个cmd到一个端口来远程控制该服务器。这时可以有GUI的远程控制，比如3389，或者类telnet text方式的控制，比如rnc。nc肯定是可以用的,其实这也足够了。

　　1. telnet到服务器

　　2. cscript.exe adsutil.vbs enum w3svc/1/root

KeyType : (STRING) "IIsWebVirtualDir"
AppRoot : (STRING) "/LM/W3SVC/1/ROOT"
AppFriendlyName : (STRING) "默认应用程序"
AppIsolated : (INTEGER) 2
AccessRead : (BOOLEAN) True
AccessWrite : (BOOLEAN) False
AccessExecute : (BOOLEAN) False
AccessScript : (BOOLEAN) True
AccessSource : (BOOLEAN) False
AccessNoRemoteRead : (BOOLEAN) False
AccessNoRemoteWrite : (BOOLEAN) False
AccessNoRemoteExecute : (BOOLEAN) False
AccessNoRemoteScript : (BOOLEAN) False
HttpErrors : (LIST) (32 Items)
"400,*,FILE,C:\WINNT\help\iisHelp\common\400.htm"
"401,1,FILE,C:\WINNT\help\iisHelp\common\401-1.htm"
"401,2,FILE,C:\WINNT\help\iisHelp\common\401-2.htm"
"401,3,FILE,C:\WINNT\help\iisHelp\common\401-3.htm"
"401,4,FILE,C:\WINNT\help\iisHelp\common\401-4.htm"
"401,5,FILE,C:\WINNT\help\iisHelp\common\401-5.htm"
"403,1,FILE,C:\WINNT\help\iisHelp\common\403-1.htm"
"403,2,FILE,C:\WINNT\help\iisHelp\common\403-2.htm"
"403,3,FILE,C:\WINNT\help\iisHelp\common\403-3.htm"
"403,4,FILE,C:\WINNT\help\iisHelp\common\403-4.htm"
"403,5,FILE,C:\WINNT\help\iisHelp\common\403-5.htm"
"403,6,FILE,C:\WINNT\help\iisHelp\common\403-6.htm"
"403,7,FILE,C:\WINNT\help\iisHelp\common\403-7.htm"
"403,8,FILE,C:\WINNT\help\iisHelp\common\403-8.htm"
"403,9,FILE,C:\WINNT\help\iisHelp\common\403-9.htm"
"403,10,FILE,C:\WINNT\help\iisHelp\common\403-10.htm"
"403,11,FILE,C:\WINNT\help\iisHelp\common\403-11.htm"
"403,12,FILE,C:\WINNT\help\iisHelp\common\403-12.htm"
"403,13,FILE,C:\WINNT\help\iisHelp\common\403-13.htm"
"403,15,FILE,C:\WINNT\help\iisHelp\common\403-15.htm"
"403,16,FILE,C:\WINNT\help\iisHelp\common\403-16.htm"
"403,17,FILE,C:\WINNT\help\iisHelp\common\403-17.htm"
"404,*,FILE,C:\WINNT\help\iisHelp\common\404b.htm"
"405,*,FILE,C:\WINNT\help\iisHelp\common\405.htm"
"406,*,FILE,C:\WINNT\help\iisHelp\common\406.htm"
"407,*,FILE,C:\WINNT\help\iisHelp\common\407.htm"
"412,*,FILE,C:\WINNT\help\iisHelp\common\412.htm"
"414,*,FILE,C:\WINNT\help\iisHelp\common\414.htm"
"500,12,FILE,C:\WINNT\help\iisHelp\common\500-12.htm"
"500,13,FILE,C:\WINNT\help\iisHelp\common\500-13.htm"
"500,15,FILE,C:\WINNT\help\iisHelp\common\500-15.htm"
"500,100,URL,/iisHelp/common/500-100.asp"