Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '<File name>.exe' = '%APPDATA%\<File name>.exe'
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\fjefq.exe
Creates the following files on removable media
- <Drive name for removable media>:\fjefq.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions
To bypass firewall, removes or modifies the following registry keys
- [<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\javax.exe' = '%APPDATA%\javax.exe:*:Enabled:Windows Mess...
- [<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\ctfmon.exe' = '%APPDATA%\ctfmon.exe:*:Enabled:Windows Me...
Injects code into
the following user processes:
- ctfmon.exe
Modifies file system
Creates the following files
- %APPDATA%\ctfmon.exe
- %TEMP%\zp9t_1vu.0.cs
- %TEMP%\zp9t_1vu.cmdline
- %TEMP%\zp9t_1vu.out
- %TEMP%\csc8f75.tmp
- %TEMP%\res8f95.tmp
- %TEMP%\zp9t_1vu.dll
- %APPDATA%\<File name>.exe
- %APPDATA%\javax.exe
- %APPDATA%\data.dat
Sets the 'hidden' attribute to the following files
- <Drive name for removable media>:\fjefq.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files
- %TEMP%\res8f95.tmp
- %TEMP%\csc8f75.tmp
- %TEMP%\zp9t_1vu.out
- %TEMP%\zp9t_1vu.cmdline
- %TEMP%\zp9t_1vu.dll
- %TEMP%\zp9t_1vu.0.cs
Network activity
UDP
- DNS ASK ja#####veby.no-ip.org
Miscellaneous
Creates and executes the following
- '%APPDATA%\ctfmon.exe'
- '%WINDIR%\microsoft.net\framework\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\zp9t_1vu.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES8F95.tmp" "%TEMP%\CSC8F75.tmp"' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\ctfmon.exe" /t REG_SZ /d "%APPDATA%\ctfmon.exe...' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\javax.exe" /t REG_SZ /d "%APPDATA%\javax.exe:*...' (with hidden window)
Executes the following
- '%WINDIR%\microsoft.net\framework\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\zp9t_1vu.cmdline"
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES8F95.tmp" "%TEMP%\CSC8F75.tmp"
- '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
- '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\ctfmon.exe" /t REG_SZ /d "%APPDATA%\ctfmon.exe...
- '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\javax.exe" /t REG_SZ /d "%APPDATA%\javax.exe:*...
- '%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
- '%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\javax.exe" /t REG_SZ /d "%APPDATA%\javax.exe:*:Enable...
- '%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\ctfmon.exe" /t REG_SZ /d "%APPDATA%\ctfmon.exe:*:Enab...
