2ֹSYNˮ 
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters 
½DWORDֵΪSynAttackProtectֵΪ2 
½EnablePMTUDiscovery REG_DWORD 0 
½NoNameReleaseOnDemand REG_DWORD 1 
½EnableDeadGWDetect REG_DWORD 0 
½KeepAliveTime REG_DWORD 300,000 
½PerformRouterDiscovery REG_DWORD 0 
½EnableICMPRedirects REG_DWORD 0


C֧IGMPЭ 
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters 
½DWORDֵΪIGMPLevel ֵΪ0 

===============================================================


7TTLֵ
crackerԸpingصTTLֵжĲϵͳ磺 
TTL=107(WINNT); 
TTL=108(win2000); 
TTL=127128(win9x); 
TTL=240241(linux); 
TTL=252(solaris); 
TTL=240(Irix); 
ʵԼĵģ
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\ParametersDefaultTTL REG_DWORD 0-0xff(0-255 ʮ,Ĭֵ128)ĳһĪ258ЩСϰ죬ʹ˷ҲһŶ


============================================

8. ɾĬϹ
ʹһ͹̣ĻԺֱ˹ô£2KΪõĬϹHKEY_LOCAL_MACHINE\ SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters AutoShareServerREG_DWORDֵΪ0


10.ȥĬϹ,ļΪreg׺,Ȼִе뼴.
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters]

"AutoShareServer"=dword:00000000

"AutoSharewks"=dword:00000000

=========================================


10һ±´롣Ϊ*.batӵĿ
net share c$ /del
net share d$ /del
net share e$ /del
net share f$ /del
net share ipc$ /del
net share admin$ /del


===========================================


7жȫ
򵥵İ취ֱжغɾӦĳļĴ뱣Ϊһ.BATļ( ¾ WIN2000 Ϊʹ2003ϵͳļӦ C:\WINDOWS\ )
regsvr32/u C:\WINDOWS\System32\wshom.ocx
del C:\WINDOWS\System32\wshom.ocx
regsvr32/u C:\WINDOWS\system32\shell32.dll
del C:\WINNT\WINDOWS\system32\shell32.dll


===========================================


Ȼһ£WScript.Shell, Shell.application, WScript.Networkͻᱻжˡܻʾ޷ɾļùһ·ᷢʾȫˡ
2003ϵͳȫ-мȫ

1.ϵͳ̺վ̱ΪNTFSʽ,Ȩ.

2.ϵͳ̺վ̳administrators systemûȨȫȥ.


========================================================

7.ʻ(gpedit.mscسԱ༭ѡ-Windows-ȫ-˻-˻ԣ˻Ϊε½Чʱ30ӡλΪ30ӡ)


====================================================




=======================================================


C:\WINDOWS\Registration Ȩ


7.ֹdump fileĲ 
dumpļϵͳʱһݺõĲϡȻҲܹڿṩһЩ 
ϢһЩӦóȡ>ϵͳ>߼>͹ϻָ дϢ ĳޡ 
رջҽDr.Watson 
ڿʼ-롰drwtsn32߿ʼ---ϵͳ-ϵͳϢ--Dr Watsonϵͳ 
ĻҽDr.Watson ֻתȫ߳ġѡһӲ̻ܾãռ 
ôռ䡣ǰдuser.dmpļɾɽʡʮMBռ䡣. 
drwtsn32 -i ֱӹرջҽ,ͨûûʲôô 


====================================

13.жwscript.shell(ǿҽж.ִ.ͨϴcmd.exeվĿ¼»ֱӵ÷ϵĴӶ) 
cmdУregsvr32 WSHom.Ocx /u 
жFSO(ж.ļ.һṩ̶,úһЩasp) 
cmdУregsvr32.exe scrrun.dll /u 


==================================================================


ذȫ
ʼ˵>ߡ>ذȫ
Aزԡ>˲ 
˲Ըġɹʧܡ
˵¼¼ɹʧ
˶ʡʧ
˹̸١
Ŀ¼ʡʧ
Ȩʹáʧ
ϵͳ¼ɹʧ
˻¼¼ɹʧ
˻ɹʧ

Bزԡ>ûȨ޷
رϵͳֻAdministrators顢ȫɾ 
ͨն˷½ֻAdministrators,ȫɾ

9.ڰȫ ز-ȫѡͨն˷ܾ½  
ASPNET 
Guest
IUSR_*****
IWAM_*****
NETWORK SERVICE
SQLDebugger  
(****ʾĻ,ҿԵ û   ѡ   ߼   ѡ  ڵгûбѡ. עⲻҪӽuseradministratorsӽȥԺûа취Զ̵½.)

Cزԡ>ȫѡ
ʽ½ʾϴεû
ʣSAMʻ͹ö١ 
ʣΪ֤ƾ֤
ʣʵĹȫɾ
ʣʵȫɾ
ʣԶ̷ʵע·ȫɾ 
ʣԶ̷ʵע··ȫɾ 
ʻʻһʻ 
ʻϵͳԱʻһʻ


====================================================



11. òҪĺΣյķ,гҪ.
Alerter   ͹֪ͨ

TCP/IPNetBIOS Helperṩ TCP/IP ϵ NetBIOS Ͽͻ˵ NetBIOS ƽֶ֧ʹûܹ 

Serverִ֧˼ͨļӡܵ 

Task scheduler ָʱ 

Computer Browser:ά

Distributed File System: ļ

Distributed linktracking client   ھϢ

Error reporting service   ʹ󱨸

Remote Procedure Call (RPC) Locator   RpcNs*Զ̵̹ (RPC) 

Remote Registry   Զ޸ע

Removable storage   ƶý塢Ϳ

Remote Desktop Help Session Manager   ԶЭ

Routing and Remote Access ھԼΪҵṩ·ɷ

Messenger   Ϣļ

Microsoft Serchṩٵĵ****ƶ*.mscļϵͳʱᱨúûӰ 

Net Logon   ͨ

NTLMSecuritysupportprovide   telnetMicrosoft Serchõ

PrintSpooler   ӡ

telnet   telnet

Workstation   й©ϵͳûб


===============================================



C:\WINDOWS\Application Compatibility Scripts κ޸ģĿ¼ 
C:\WINDOWS\AppPatch AcWebSvc.dllѾusersȨ,ļusersȨ 
C:\WINDOWS\Debug usersĬϲ 
C:\WINDOWS\Debug\UserModeĬϲ޸дļȨ,ȡusersȨ,رȨޣʾ 
C:\WINDOWS\Debug\WPDȡAuthenticated UsersȨ޿дļĿ¼. 
C:\WINDOWS\Driver CacheȡusersȨ,i386ļļusersȨ 
C:\WINDOWS\HelpȡusersȨ 
C:\WINDOWS\Help\iisHelp\commonȡusersȨ 
C:\WINDOWS\IIS Temporary Compressed FilesĬϲ޸ 
C:\WINDOWS\imeκ޸ģĿ¼ 
C:\WINDOWS\infκ޸ģĿ¼ 
C:\WINDOWS\Installer ɾeveryoneȨޣĿ¼µļeveryoneȡеȨ 
C:\WINDOWS\java ȡusersȨ,Ŀ¼µļusersȨ 
C:\WINDOWS\MAGICSET Ĭϲ 
C:\WINDOWS\Media Ĭϲ 
C:\WINDOWS\Microsoft.NETκ޸ģĿ¼ 
C:\WINDOWS\msagent ȡusersȨޣĿ¼µļusersȨ 
C:\WINDOWS\msapps κ޸ģĿ¼ 
C:\WINDOWS\muiȡusersȨ 
C:\WINDOWS\PCHEALTH Ĭϲ 
C:\WINDOWS\PCHEALTH\ERRORREP\QHEADLES ȡeveryoneȨ 
C:\WINDOWS\PCHEALTH\ERRORREP\QSIGNOFF ȡeveryoneȨ 
C:\WINDOWS\PCHealth\UploadLB ɾeveryoneȨޣ¼Ŀ¼ùܣûusereveryoneȨ 
C:\WINDOWS\PCHealth\HelpCtr ɾeveryoneȨޣ¼Ŀ¼ùܣûusereveryoneȨ(ðʾеЩļˣusersȨ޾) 
C:\WINDOWS\PIF Ĭϲ 
C:\WINDOWS\PolicyBackupĬϲ,Ŀ¼µļusersȨ 
C:\WINDOWS\Prefetch Ĭϲ 
C:\WINDOWS\provisioning Ĭϲ,Ŀ¼µļusersȨ 
C:\WINDOWS\pssĬϲ,Ŀ¼µļusersȨ 
C:\WINDOWS\RegisteredPackagesĬϲ,Ŀ¼µļusersȨ 
C:\WINDOWS\Registration\CRMLogĬϲĻдȨޣȡusersȨ 
C:\WINDOWS\RegistrationȡeveryoneȨ.NETWORK SERVICE Ŀ¼µļeveryoneɶȡȨ, 
C:\WINDOWS\repairȡusersȨ 
C:\WINDOWS\ResourcesȡusersȨ 
C:\WINDOWS\security usersĬϲģDatabaselogsĿ¼Ĭϲ.ȡtemplatesĿ¼usersȨ,ļusers 
C:\WINDOWS\ServicePackFiles κ޸ģĿ¼ 
C:\WINDOWS\SoftwareDistributionκ޸ģĿ¼ 
C:\WINDOWS\srchasst κ޸ģĿ¼ 
C:\WINDOWS\system Ĭ 
C:\WINDOWS\TAPIȡusersȨޣǸtsec.iniȨ޲Ҫ 
C:\WINDOWS\twain_32ȡusersȨޣĿ¼µļusersȨ 
C:\WINDOWS\vnDrvBas κ޸ģĿ¼ 
C:\WINDOWS\WebȡusersȨ޸µļusersȨ 
C:\WINDOWS\WinSxS ȡusersȨޣ*.tlb*.policy*.cat*.manifest,*.dllЩļeveryoneusersȨ 
Ŀ¼NETWORK SERVICEȫƵȨ 
C:\WINDOWS\system32\wbem Ŀ¼ҪáusersȨޣһЩӦʱǳ¼鿴ʱᱨһѴ󡣵һЩСΪ˲webshellϵͳĿ¼ȨޣwbemĿ¼е*.dllļuserseveryoneȨޡ 
*.dll 
users;everyone 
ͣʱ 
C:\WINDOWS\#$$#%^$^@!#$%$^S#@\#$#$%$#@@@$%!!WERa (õtempļ·)tempڱдȨޣ޸Ĭ·ơֹwebshellĿ¼д롣޸·ҪЧ 
ˣϵͳκһĿ¼ǲģΨһһдC:\WINDOWS\temp޸Ĭ·ƱC:\WINDOWS\#$$#%^$^@!#$%$^S#@\#$#$%$#@@@$%!!WERa 
Ӧ԰ȫЩ 


================================================================================


system32Ŀ¼ã

Ŀ¼лɾuserҪȨޱˡҪĵĵطû

C:\WINDOWS\system32\GroupPolicy ɾAuthenticated Users飬Ŀ¼Ĭϲøľ*******

C:\WINDOWS\system32\inetsrv Ŀ¼ֲľ*******

C:\WINDOWS\system32\spool*************
C:\WINDOWS\system32\spool\drivers ɾEVEryoneȨ
C:\WINDOWS\system32\spool\PRINTERS ɾEVEryoneȨ

C:\WINDOWS\system32\wbem\AutoRecover ɾEVEryoneȨ
C:\WINDOWS\system32\wbem\Logs ͬ
C:\WINDOWS\system32\wbem\mof ͬ
C:\WINDOWS\system32\wbem\Repository ͬ

==================================================

Ȩ
ϵͳ̼дֻ Administrators  SYSTEM ȫȨ
ϵͳ\Documents and Settings Ŀ¼ֻ Administrators  SYSTEM ȫȨ
ϵͳ\Documents and Settings\All Users Ŀ¼ֻ Administrators  SYSTEM ȫȨ
ϵͳ\Windows\System32\cacls.execmd.exenet.exenet1.exeftp.exe tftp.exetelnet.exe  netstat.exeregedit.exeat.exeattrib.exeformat.comdelļֻ Administrators SYSTEM ȫ Ȩ 
<systemroot>\System32\cmd.exeformat.comftp.exeתƵĿ¼ cdd,foat,ftprr
Documents and SettingsЩĿ¼ֻadinistratorsȨޡҪһһĿ¼鿴Ŀ¼
ɾc:\inetpubĿ¼

13.пܻᱻȨõļȨ,ҵļ,䰲ȫadministratorsûȫɾ,ҪsystemҲҪ.("cacls.exe","arp.exe","attrib.exe","cmd.exe","format.com","ftp.exe","tftp.exe","net.exe","net1.exe","netstat.exe","ping.exe","regedit.exe","regsvr32.exe","telnet.exe","xcopy.exe","at.exe","del","c.exe")
net.exe

net1.exe

cmd.exe

tftp.exe

netstat.exe

regedit.exe

at.exe

attrib.exe

cacls.exe

format.com

c.exe ļ пļҲļ.

  
"net.exe","net1.exe","cmd.exe","tftp.exe","netstat.exe","regedit.exe","at.exe","attrib.exe","cacls.exe","format.com","c.exe"  Ȼȫѡ Ҽ  ȫ 
