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Backdoor °¡ ½ÇÇà µÇ¸é, ÀϹÝÀûÀ¸·Î À©µµ¿ì Æú´õ
(win9x: C:\Windows, win XP: C:\Windows, win2000, NT : C:\WinNT)
¿¡ MCSECURE.EXE(63,488 Bytes) ÆÄÀÏÀÌ ¼³Ä¡µÈ´Ù.
±×¸®°í Hpdriver.sys(7,168 bytes)À» À©µµ¿ì ½Ã½ºÅÛ Æú´õ(win9x: C:\Windows\system, win XP: C:\Windows\system32, win2000, NT : C:\WinNT\system32)
¿¡ »ý¼ºÇÑ´Ù.
ÀÌ ÆÄÀÏÀº Åͺ¸¹é½Å Á¦Ç°±º¿¡¼ Trojan-W32/AgentRootKit.7168·Î Áø´Ü ÇÑ´Ù.
À̶§ ÇØ´ç ÆÄÀÏÀÌ µ¿ÀÛÇÏ°Ô µÇ¸é ÀÚ½ÅÀ» ´ÙÀ½°ú °°ÀÌ ·¹Áö½ºÆ®¸®¿¡
µî·ÏµÇ¾î ´ÙÀ½ ºÎÆýà ½ÇÇàµÇµµ·Ï Á¶ÀÛ ÇÑ´Ù.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\mcsecure
Ç׸ñ¿¡
(windows 9x, xp)
ImagePath = c:\windows\MCSECURE.EXE
(windows 2000, NT)
ImagePath = c:\winnt\MCSECURE.EXE
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Mcsecure
Ç׸ñ¿¡
DisplayName = Mcsecure
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Hpdriver
Ç׸ñ¿¡
(windows 9x)
ImagePath = c:\windows\system\Hpdriver.sys
(windows xp)
ImagePath = c:\windows\system32\Hpdriver.sys
(windows 2000, NT)
ImagePath = c:\winnt\system\Hpdriver.sys
À» »ý¼ºÇÑ´Ù.
±×¸®°í ´ÙÀ½Ã³·³ À©µµ¿ì º¸¾È¼ÂÆÃÀ» Á¶ÀÛ ÇÑ´Ù.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
Ç׸ñ¿¡
AntiVirusDisableNotify = "dword:00000001"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
Ç׸ñ¿¡
FirewallDisableNotify = "dword:00000001"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
Ç׸ñ¿¡
AntiVirusOverride = "dword:00000001"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
Ç׸ñ¿¡
FirewallOverride = "dword:00000001"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
Ç׸ñ¿¡
UpdatesDisableNotify = "dword:00000001"
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate
Ç׸ñ¿¡
DoNotAllowXPSP2 = "dword:00000001"
±âº»°ªÀº dword:00000000 ÀÌ´Ù.
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile
Ç׸ñ¿¡
EnableFirewall = "dword:00000000"
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile
Ç׸ñ¿¡
EnableFirewall = "dword:00000000"
ÀÇ À¯Àú ¼ÂÆÃÀ» º¯°æÇÑ´Ù.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wscsvc
Ç׸ñ¿¡
Start = "dword:00000004"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RemoteRegistry
Ç׸ñ¿¡
Start = "dword:00000004"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Messenger
Ç׸ñ¿¡
Start = "dword:00000004"
±âº»°ªÀº dword:00000002 ÀÌ´Ù.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TlntSvr
Ç׸ñ¿¡
Start = "dword:00000004"
±âº»°ªÀº dword:00000003 ÀÌ´Ù.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control
Ç׸ñ¿¡
WaitToKillServiceTimeout = "7000"
±âº»°ªÀº 20000 ÀÌ´Ù.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Ole
Ç׸ñ¿¡
EnableDCOM = "N"
±âº»°ªÀº Y ÀÌ´Ù.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
Ç׸ñ¿¡
restrictanonymous = "dword:00000001"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters\
Ç׸ñ¿¡
AutoShareWks = "dword:00000000"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanserver\parameters\
Ç׸ñ¿¡
AutoShareServer = "dword:00000000"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanworkstation\parameters\
Ç׸ñ¿¡
AutoShareWks = "dword:00000000"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lanmanworkstation\parameters\
Ç׸ñ¿¡
AutoShareServer = "dword:00000000"
À¯Àú¼ÂÆà °ªÀ» º¯°æÇÑ´Ù.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update
Ç׸ñ¿¡
AUOption = "dword:00000001"
±âº»°ªÀº dword:00000000 ÀÌ´Ù.
¹éµµ¾î·Î¼ µ¿ÀÛ ÇϰԵǸé, ´ÙÀ½°ú °°Àº ½Ã½ºÅÛ ¿Àµ¿ÀÛÀÌ ÀϾ ¼ö ÀÖ´Ù.
1. ÆÄÀÏ ½ÇÇà¹× »èÁ¦
2. Æ÷Æ®°¨½Ã
3. Å°º¸µå·Î ŸÀÌÇÎÇÑ ³»¿ëÀ» ÀúÀå
4. ÆÄÀÏ ´Ù¿î·Îµå
5. ÇÁ·Î¼¼½º Á¾·á
6. ftp¹× proxy ¼¹ö·Î µ¿ÀÛ°¡´É
7. ½Ã½ºÅÛ Çϵå¿þ¾î Á¤º¸ ¼öÁý
±×¸®°í ÀÌ ¹éµµ¾î´Â ¸î¸î Worm ·ùÀÇ ½ÇÇàÀ» ¹æÇØ Çϸç ÇÁ·Î¼¼½ºÇà Á¾·á ½ÃÅ°´Â
±â´ÉÀ» °¡Áö°í ÀÖÀ¸³ª È®ÀεÇÁö ¾Ê¾Ò´Ù.
WebDav ¹öÆÛ ¿À¹ö Ç÷οì À§Çè, RPC/DCOM, RPCSS Servie,
LSASS ¿À·ù À§ÇèµîÀ» ÀÌ¿ëÇϹǷÎ, ´ÙÀ½ º¸¾ÈÆÐÄ¡¸¦ ±Ç°íÇÑ´Ù.
*MS03-007 À©µµ¿ì ±¸¼º¿ä¼Ò ¿À·ù
http://www.microsoft.com/korea/technet/security/bulletin/MS03-007.asp
*MS03-026 RPC ¹öÆÛ ¿À¹ö·± ¿À·ù
http://www.microsoft.com/korea/technet/security/bulletin/MS03-026.asp
*MS03-039 RPCSS ¼ºñ½º ¹öÆÛ ¿À¹ö·± ¿À·ù
http://www.microsoft.com/korea/technet/security/bulletin/MS03-039.asp
*MS04-011 RPCSS ¿ø°ÝÄÚµå ½ÇÇà
http://www.microsoft.com/korea/technet/security/bulletin/MS03-039.asp |
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