Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe, <SYSTEM32>\SysConfig.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe <SYSTEM32>\SysConfig.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft' = '<SYSTEM32>\SysConfig.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SystemConfiguration' = '<SYSTEM32>\SysConfig.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'winlogon' = '<SYSTEM32>\SysConfig.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\readme.txt
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\SysConfig.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
- Registry Editor (RegEdit)
Creates and executes the following:
- '<SYSTEM32>\SysConfig.exe'
Executes the following:
- '%WINDIR%\explorer.exe' <SYSTEM32>
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\ctfmon.exe
the following user processes:
- NAVAPW32.EXE
- AVPCC.EXE
- zapro.exe
- AVP.EXE
- ZONEALARM.EXE
- AVGCC32.EXE
- AVGCTRL.EXE
- avgcc.exe
- AVPM.EXE
- AVSYNMGR.EXE
Searches for windows to
detect programs and games:
- ClassName: '(null)' WindowName: 'Yahoo! Messenger'
Modifies settings of Windows Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFolderOptions' = '00000001'
Modifies file system :
Creates the following files:
- C:\SysConfig.exe
- C:\Autorun.inf
- C:\readme.txt
- <SYSTEM32>\readme.txt
- <SYSTEM32>\SysConfig.exe
Sets the 'hidden' attribute to the following files:
- C:\Autorun.inf
- <Drive name for removable media>:\SysConfig.exe
- <Drive name for removable media>:\Autorun.inf
- <SYSTEM32>\readme.txt
- <SYSTEM32>\SysConfig.exe
- C:\SysConfig.exe
Deletes the following files:
- %TEMP%\~DF5ED6.tmp
- %TEMP%\~DFE564.tmp
- %TEMP%\~DFA9EE.tmp
- %TEMP%\~DF5202.tmp
- %TEMP%\~DF436D.tmp
- %TEMP%\~DF899E.tmp
- %TEMP%\~DF2B88.tmp
- %TEMP%\~DFC5BD.tmp
- %TEMP%\~DF6C86.tmp
- %TEMP%\~DF22D5.tmp
- %TEMP%\~DFFF5E.tmp
- %TEMP%\~DF738D.tmp
Miscellaneous:
Searches for the following windows:
- ClassName: '(null)' WindowName: 'Run'
- ClassName: '(null)' WindowName: 'Kaspersky Anti-Virus 7.0'
- ClassName: '(null)' WindowName: 'Command Prompt'
- ClassName: '' WindowName: '(null)'
- ClassName: '(null)' WindowName: 'Autorun.inf - Notepad'
- ClassName: '(null)' WindowName: 'Google - Microsoft Internet Explorer'
- ClassName: '(null)' WindowName: 'Windows Media Player'
- ClassName: '(null)' WindowName: 'Friendster - Home - Microsoft Internet Explorer'
- ClassName: '(null)' WindowName: 'templates.htt - Notepad'
- ClassName: '(null)' WindowName: 'Yahoo! - Microsoft Internet Explorer'