W97M.Rodun

1. Disables MS Word virus protection.
   
   
2. Displays a message with the following characteristics:
   
   Title: Attention!
   Message: Computer with problems!
   
   
3. Adds the value:
   
   "Level" = "1"
   
   to the registry subkey:
   
   HKEY_CURRENT_USER\Software\Microsoft\Office\9.0\Word\Security
   
   so that it disables some MS Word and Windows security features.
   
   
4. Adds the value:
   
   "DisableSR" = "1"
   
   to the registry subkey:
   
   HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\systemrestore
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore
   
   so that it disables some MS Word and Windows security features.
   
   
5. Adds the value:
   
   "EnableFirewall" = "0"
   
   to the registry subkeys:
   
   HKEY_CURRENT_USER\Software\Policies\Microsoft\WindowsFirewall\DomainProfile
   HKEY_CURRENT_USER\Software\Policies\Microsoft\WindowsFirewall\StandardProfile
   HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile
   
   so that it disables some MS Word and Windows security features.
   
   
6. Adds the value:
   
   "Rodune" = " Virus_saved"
   
   to the registry subkey:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active
   
   
7. Adds the values:
   
   "DisableTaskMgr" = "1"
   "DisableRegistryTools" = "1"
   
   to the registry subkey:
   
   HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
   
   
8. Adds the values:
   
   "NoRun" = "1"
   "DisallowRun" = "1"
   "NoFind" = "1"
   "NoCloseKey" = "1"
   
   to the registry subkey:
   
   HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
   
   
9. Adds the values:
   
   "ActiveBorder" = "212 208 200"
   "ActiveBorder" = "162 200 169"
   "ActiveTitle" = "0 84 227"
   "ActiveTitle" = "89 151 100"
   "AppWorkSpace" = "128 128 128"
   "AppWorkSpace" = "150 192 157"
   "Background" = "0 78 152"
   "Background" = "0 255 0"
   "ButtonAlternateFace" = "181 181 181"
   "ButtonAlternateFace" = "0 255 0"
   "ButtonDkShadow" = "113 111 100"
   "ButtonDkShadow" = "0 0 0"
   "ButtonFace" = "236 233 216"
   "ButtonFace" = "0 255 0"
   "ButtonHilight" = "255 255 255"
   "ButtonHilight" = "208 227 211"
   "ButtonLight" = "241 239 226"
   "ButtonLight" = "0 255 0"
   "ButtonShadow" = "172 168 153"
   "ButtonShadow" = "89 151 100"
   "GrayText" = "172 168 153"
   "GrayText" = "89 151 100"
   "Hilight" = "49 106 197"
   "Hilight" = "89 151 100"
   "HilightText" = "255 255 255"
   "HilightText" = "0 0 0"
   "InactiveBorder" = "212 208 200"
   "InactiveBorder" = "162 200 169"
   "InactiveTitle" = "122 150 223"
   "InactiveTitle" = "128 128 0"
   "InactiveTitleText" = "216 228 248"
   "InactiveTitleText" = "0 0 0"
   "InfoText" = "0 0 0"
   "InfoText" = "0 255 0"
   "InfoWindow" = "255 255 225"
   "InfoWindow" = "0 0 0"
   "Menu" = "255 255 255"
   "Menu" = "0 255 0"
   "Scrollbar" = "212 208 200"
   "Scrollbar" = "0 255 0"
   "Window" = "255 255 255"
   "Window" = "0 255 0"
   
   to the registry subkey:
   
   HKEY_USERS\.DEFAULT\Control Panel\Colors
   
   in an attempt to change desktop colors.
   
   
10. Adds Read.doc to the Documents Menu in the Start Button of the Windows Taskbar, which points to C:\Windows\Desktop\Read.doc. It does not, however, create the file C:\Windows\Desktop\Read.doc.
    
    
11. Attempts to delete the following files, if the current system date is the 5th, 10th, 15th, 20th, or 25th of the month:
    
    
    • C:\WINDOWS\*.xls
    • C:\WINDOWS\*.pdf
    • C:\WINDOWS\*.rar
    • C:\WINDOWS\*.com
    • C:\WINDOWS\*.ini
    • C:\WINDOWS\*.txt
    • C:\WINDOWS\*.rtf
    • C:\WINDOWS\*.gif
    • C:\WINDOWS\*.pdf
    • C:\WINDOWS\*.mp3
    • C:\WINDOWS\*.avi
    • C:\WINDOWS\*.mpg
    • C:\WINDOWS\*.bmp
    • C:\*.xls
    • C:\*.pdf
    • C:\*.rar
    • C:\*.com
    • C:\*.ini
    • C:\*.txt
    • C:\*.rtf
    • C:\*.gif
    • C:\*.xls
    • C:\*.mp3
    • C:\*.avi
    • C:\*.mpg
    • C:\*.bmp
      
      
12. Creates the following folders:
    
    
    • C:\windows\Book
    • C:\windows\Girl
    • C:\windows\Car
    • C:\windows\Movie
    • C:\windows\Music
    • C:\windows\Study
    • C:\windows\Game
    • C:\windows\Woman
    • C:\windows\Text
      
      
13. Saves a copy of the active document as:
    
    
    • C:\Windows\Book\Books.doc
    • C:\Windows\Girl\Girls.doc
    • C:\Windows\Car\Cars.doc
    • C:\Windows\Movie\Movies.doc
    • C:\Windows\Music\Musics.doc
    • C:\Windows\Study\Studies.doc
    • C:\Windows\Game\Games.doc
    • C:\Windows\Woman\Women.doc
    • C:\Windows\Text\Texts.doc
      
      
14. Infects the Normal.dot file by creating a module named Rodune, and copying its code to that module.
    
    
15. Hooks the ToolsMacro automacro to hide itself from the user.

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.