Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKLM>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = '<SYSTEM32>\install\server.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = '<SYSTEM32>\install\server.exe'
- [<HKLM>\Software\Microsoft\Windows\CurrentVersion\Run] 'HKLM' = '<SYSTEM32>\install\server.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HKCU' = '<SYSTEM32>\install\server.exe'
- [<HKLM>\Software\Microsoft\Active Setup\Installed Components\{230NEE0W-3DHG-0S8F-3R6X-60I418KDD1WY}] 'StubPath' = '<SYSTEM32>\install\server.exe Restart'
- [<HKLM>\Software\Microsoft\Active Setup\Installed Components\{230NEE0W-3DHG-0S8F-3R6X-60I418KDD1WY}] 'StubPath' = '<SYSTEM32>\install\server.exe'
Malicious functions
Injects code into
the following system processes:
- %WINDIR%\explorer.exe
the following user processes:
- server.exe
Modifies file system
Creates the following files
- %TEMP%\_tbsse9u.0.vb
- %TEMP%\vbc5b2d.tmp
- %TEMP%\umgrlqic.out
- %TEMP%\umgrlqic.cmdline
- %TEMP%\umgrlqic.0.vb
- %TEMP%\user8
- %TEMP%\user7
- %TEMP%\res5b56.tmp
- %APPDATA%\userlog.dat
- <SYSTEM32>\install\server.exe
- %TEMP%\_tbsse9u.dll
- %TEMP%\res3f68.tmp
- %TEMP%\vbc3f49.tmp
- %TEMP%\_tbsse9u.out
- %TEMP%\_tbsse9u.cmdline
- %TEMP%\user2.txt
- %TEMP%\umgrlqic.dll
Sets the 'hidden' attribute to the following files
- <SYSTEM32>\install\server.exe
- %APPDATA%\userlog.dat
Deletes the following files
- %TEMP%\res3f68.tmp
- %TEMP%\vbc3f49.tmp
- %TEMP%\_tbsse9u.0.vb
- %TEMP%\_tbsse9u.cmdline
- %TEMP%\_tbsse9u.out
- %TEMP%\_tbsse9u.dll
- %TEMP%\user2.txt
- %TEMP%\user8
- %TEMP%\res5b56.tmp
- %TEMP%\vbc5b2d.tmp
- %TEMP%\umgrlqic.dll
- %TEMP%\umgrlqic.cmdline
- %TEMP%\umgrlqic.out
- %TEMP%\umgrlqic.0.vb
- %TEMP%\user7
Substitutes the following files
- %TEMP%\user8
- %TEMP%\user7
Network activity
Connects to
- 'localhost':999
UDP
- DNS ASK ar###.no-ip.info
Miscellaneous
Creates and executes the following
- '<SYSTEM32>\install\server.exe'
- '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\_tbsse9u.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES3F68.tmp" "%TEMP%\vbc3F49.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\umgrlqic.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES5B56.tmp" "%TEMP%\vbc5B2D.tmp"' (with hidden window)
Executes the following
- '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\_tbsse9u.cmdline"
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES3F68.tmp" "%TEMP%\vbc3F49.tmp"
- '%ProgramFiles%\mozilla firefox\firefox.exe'
- '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\umgrlqic.cmdline"
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES5B56.tmp" "%TEMP%\vbc5B2D.tmp"
