W32.Ridnu.B

1. Copies itself as the following files:
   
   
   • c:\explorer.exe
   • c:\explorer.scr
   • %System%\Mr_CoolFace.exe
   • %System%\ameajeve.exe
   • %Windir%\pchealth\helpctr\binaries\msconfig.exe
   • %Windir%\Negeri Serumpun Sebalai .pif .bat .com .scr .exe
   • %UserProfile%\Application Data\Mr_CoolFace.exe
   • %UserProfile%\Application Data\SMA Negeri 1 Pangkalpinang.exe
   • %UserProfile%\Application Data\explorer.exe
   • %UserProfile%\Desktop\Babel\psapi.dll
   • %UserProfile%\Local Settings\DNALSI_AKGNAB.exe
   • %UserProfile%\Start Menu\Programs\Startup\winlogon.exe
   • %UserProfile%\All Users\Documents\Nitip dulu jangan dihapus.scr
   • %UserProfile%\All Users\Documents\Smansa_Pkp.scr
   • %UserProfile%\All Users\Documents\\Cantik.scr
   • %UserProfile%\All Users\Documents\\Cantik.jpg
   • %UserProfile%\All Users\Documents\My Pictures\Sample Pictures\Water lilies.jpg
     
     Note:
   • %System% is a variable that refers to the System folder. By default this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).
   • %Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows (Windows 95/98/Me/XP) or C:\Winnt (Windows NT/2000).
   • %UserProfile% is a variable that refers to the current user's profile folder. By default, this is C:\Documents and Settings\[CURRENT USER] (Windows NT/2000/XP).
     
     
2. Copies itself as the following files in the drives c,d,e,f,g:
   
   
   • %CommonProgramFiles%\kartu.exe - copy of %system%\sol.exe
   • %CommonProgramFiles%\reged1t.exe - copy of %system%\regedit.exe
   • %CommonProgramFiles%\tskmgr.exe - copy of %system%\taskmgr.exe
   • %CommonProgramFiles%\kalkulator.exe - copy of %system%\calc.exe
   • %CommonProgramFiles%\w1nm1ne.exe - copy of %system%\winmine.exe
   • %CommonProgramFiles%\N0TEPAD.exe - copy of %system%\notepad.exe
   • %CommonProgramFiles%\msheart.exe - copy of %system%\mshearts.exe
   • %CommonProgramFiles%\freecel.exe - copy of %system%\freecel.exe
   • %CommonProgramFiles%\msconfag.exe - copy of %system%\msconfig.exe
   • %CommonProgramFiles%\Laba_Laba.exe - copy of %system%\spider.exe
   • %CommonProgramFiles%\_cmd.exe - copy of %system%\cmd.exe
     
     Note: %CommonProgramFiles% is a variable that refers to the Common Files folder. By default, this is C:\Program Files\Common Files.
     
     
3. Creates the file:
   
   %UserProfile%\Desktop\babel\psapi.dll
   
   
4. May copy itself as the following files in the drives c,d,e,f,g:
   
   
   • %Windir%\Sahang dan Timah.scr
   • %Windir%\Lapangan Merdeka.scr
   • %Windir%\Tanjung Pesona.scr
   • %Windir%\Pantai Parai.scr
   • %Windir%\Pangkalpinang.scr
   • %Windir%\Bangka Island.scr
     
     
5. Adds the values:
   
   "Shell" = "c:\explorer.exe"
   "Userinit" = "c:\explorer.exe"
   
   to the registry subkey:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
   
   
6. Adds the value:
   
   "AlternateShell" = "Explorer.exe c:\explorer.exe"
   
   to the registry subkeys:
   
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SafeBoot
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet001\Control\SafeBoot
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet002\Control\SafeBoot
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet003\Control\SafeBoot
   
   
7. Adds the value:
   
   "Debugger" = "[FILENAME]"
   
   to the registry subkeys:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\sol.exe
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\calc.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\winmine.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\notepad.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mshearts.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\freecell.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\spider.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccapp.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ANSAV.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ANSAV32.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\tasklist.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskkill.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\winamp.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\URemovalCRC32.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\PCMAV.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Niu.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Nvccf.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Nvcod.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\CClaw.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Nvcoas.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Njeeves.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Nipsvc.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Nvcsched.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Zanda.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Zlh.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Nip.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cmd.exe
   
   where [FILENAME] is one of the following:
   
   "%CommonProgramFiles%\kartu.exe"
   "%CommonProgramFiles%\reged1t.exe"
   "%CommonProgramFiles%\tskmgr.exe"
   "%CommonProgramFiles%\kalkulator.exe"
   "%CommonProgramFiles%\w1nm1ne.exe"
   "%CommonProgramFiles%\N0TEPAD.exe"
   "%CommonProgramFiles%\msheart.exe"
   "%CommonProgramFiles%\freecel.exe"
   "%CommonProgramFiles%\msconfag.exe"
   "%CommonProgramFiles%\Laba_Laba.exe"
   "%CommonProgramFiles%\_cmd.exe"
   
   
8. Modifies the value:
   
   "UncheckedValue" = "1"
   
   to the registry subkey:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion
   \Explorer\Advanced\Folder\HideFileExt
   
   to hide file extentions on the compromised computer.
   
   
9. Modifies the value:
   
   "UncheckedValue" = "0"
   
   to the registry subkey:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion
   \Explorer\Advanced\Folder\SuperHidden
   
   to hide system files on the compromised computer.
   
   
10. Adds the values:
    
    "DisableConfig" = "1"
    "DisableSR" = "1"
    
    to the registry subkey:
    
    HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\SystemRestore
    
    to disable some common monitoring tools.
    
    
11. Adds the values:
    
    "DisableRegistryTools" = "1"
    "DisabletaskMgr" = "1"
    
    to the registry subkey:
    
    HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion
    \Policies\System
    
    to disable some common monitoring tools.
    
    
12. Creates the mutex named "Mr_CoolFace", so that only one instance of the threat runs on the compromised computer.
    
    
13. Searches for windows with the following strings in the title and terminates any associated processes:
    
    
    • ABLE
    • AD-AWARE
    • AD_H1E
    • AD_HIE
    • ADHIE
    • ANTI
    • ANVIE
    • ANVIR
    • AnVir
    • AVAS
    • AVG
    • AVIRA
    • AVP
    • BACA BRO
    • BITDEF
    • BLACKICE
    • BLUESCREEN
    • CASTLECOPS
    • CBAV
    • CHRIS
    • CILIN
    • CLEANER
    • COMMAND BRO
    • COMPACTBYTE
    • Configuration
    • ConsoleW
    • CUEX
    • CURR PROCESS
    • CURRPROCESS
    • CurrProcess
    • DETAIL
    • DR.WEB
    • EARTHLINK
    • ERTANTO
    • EVANTA
    • EXPLORER
    • EXTENSION
    • F-SECURE
    • FAJAR
    • FILEWALKER
    • FLAMMING
    • FORCE
    • GEOBLACK
    • GRISOFT
    • HACKER
    • HELLSPAWN
    • HIJACK
    • I KNOW
    • IDI0T
    • IKNOW
    • JAMILA
    • JOWOBOT
    • KASPERSKY
    • KILL
    • LUKE
    • MACAN
    • MACHINE
    • MALWARE
    • MCAFEE
    • MEDIA
    • Microsoft
    • MIGHTY CHICKEN
    • MIGHTYCHICKEN
    • MMC
    • MP 3
    • MP3
    • Multikiller
    • Multikiller2
    • MUSIC
    • MUSIK
    • NORMAN
    • NORTON
    • NOTESXP
    • NVC
    • OPTIX
    • ORGANIZER
    • PANDA
    • PC
    • PCMAV
    • PCSUMMARIZER
    • PINNACLE
    • PLAYER
    • PLUTO
    • POP3TRAP
    • POWER TOOL
    • POWERDVD
    • POWERTOOL
    • PrcView
    • PRO
    • PROCESS
    • Process Explorer
    • PROCESS INFO
    • PROCESS MANAGER
    • PROCESS MONITOR
    • PROCESS VIEWER
    • Process Viewer
    • PROCESSINFO
    • PROCESSMANAGER
    • PROCESSMONITOR
    • PROCESSVIEWER
    • PROCEXP
    • PROCEXPL
    • PROTECTION
    • PUSH M
    • PUSH_M
    • PUSHM
    • REALPLAYER
    • REG FIX
    • REGCURE
    • RegEdit
    • REGFIX
    • REGISTRY
    • Registry Editor
    • REMOVA
    • REMOVER
    • REMOVI
    • RESULT
    • RHAPSODY
    • RORO
    • RTLRACK
    • SCANNING
    • SECUNIA
    • SECURITY
    • SHADEWA
    • SIKUP
    • SING
    • SONG
    • SOPHOS
    • SPIDER
    • SPY
    • SPYWARE
    • STARTUP
    • STATISTIC
    • SYMANTEC
    • SYSINTERNAL
    • System Configuration
    • System Restore
    • TASK
    • TASK INFO
    • TASK MANAGER
    • TASKGUARDIAN
    • TASKINFO
    • TASKMANAGER
    • TASKS MANAGER
    • TEST
    • TForm1
    • TMainF
    • TmainF
    • TREND
    • TROJAN
    • TShowSplash
    • TSystemCleaner
    • TUNE
    • TWEAK
    • Utility
    • VAKSIN
    • VIROLOG
    • VIRUS
    • WALL
    • Warecase
    • WASHER
    • WAV V
    • WIN TASK
    • WINAMP
    • WINPATROL
    • WINTASK
    • WORM
    • YOHAN
    • ZANDA
    • Zanda's little helper
    • ZX 1
    • ZX I
    • ZX1
    • ZX_1
    • ZX_I
    • ZXI
      
      
14. May display a message box with the following text:
    
    Title: Mr_CoolFace Mohon Maaf Lahir Dan Batin
    Body: Please Pardon Me Ya !
    
    
15. May then open the CD-Rom Tray.

Recommendations

Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":

• Use a firewall to block all incoming connections from the Internet to services that should not be publicly available. By default, you should deny all incoming connections and only allow services you explicitly want to offer to the outside world.
• Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
• Ensure that programs and users of the computer use the lowest level of privileges necessary to complete a task. When prompted for a root or UAC password, ensure that the program asking for administration-level access is a legitimate application.
• Disable AutoPlay to prevent the automatic launching of executable files on network and removable drives, and disconnect the drives when not required. If write access is not required, enable read-only mode if the option is available.
• Turn off file sharing if not needed. If file sharing is required, use ACLs and password protection to limit access. Disable anonymous access to shared folders. Grant access only to user accounts with strong passwords to folders that must be shared.
• Turn off and remove unnecessary services. By default, many operating systems install auxiliary services that are not critical. These services are avenues of attack. If they are removed, threats have less avenues of attack.
• If a threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
• Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services.
• Configure your email server to block or remove email that contains file attachments that are commonly used to spread threats, such as .vbs, .bat, .exe, .pif and .scr files.
• Isolate compromised computers quickly to prevent threats from spreading further. Perform a forensic analysis and restore the computers using trusted media.
• Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
• If Bluetooth is not required for mobile devices, it should be turned off. If you require its use, ensure that the device's visibility is set to "Hidden" so that it cannot be scanned by other Bluetooth devices. If device pairing must be used, ensure that all devices are set to "Unauthorized", requiring authorization for each connection request. Do not accept applications that are unsigned or sent from unknown sources.
• For further information on the terms used in this document, please refer to the Security Response glossary.