The following instructions have been created to help you to get rid of "Nurech" manually.
Use this guide at your own risk; software should usually be better suited to remove malware, since it is able to look deeper.

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Threat Details:

Categories:
  • trojan

Description:
The Trojan connects to a server and tries to download further malware. It creates files in the windows and system directory and additionally autorun entries to be loaded on every windows start. Information about your system like hostname, ip, windows version and some kind of version number is stored in a text file. The files in the windows directory are hidden from the windows API, which means they are invisble for the user.
ADDITIONAL REMOVAL INSTRUCTION: Please reboot your PC in Safe Mode and perform another scan of Spybot - Search & Destroy to remove the remainings.
Removal Instructions:

Autorun:

Please use Spybot-S&D, RunAlyzer or msconfig.exe to remove the following autorun entries.
  • Entries named "isxa" and pointing to "isxa.exe".
  • Entries named "isxa" and pointing to "isxa.exe".
  • Entries named "iasx" and pointing to "iasx.exe".
  • Entries named "svchctrl" and pointing to "<$WINDIR>\system\svchctrl.exe".
  • Entries named "windows_startup" and pointing to "<$SYSDIR>\*.exe".
  • Entries named "windows_startup" and pointing to "<$SYSDIR>\javawin.exe".
  • Entries named "WindowsUpdate" and pointing to "<$WINDIR>\System\svchostw.exe /s".
  • Entries named "WindowsUpdateR" and pointing to "<$WINDIR>\System\regserv.exe /s".
  • Entries named "ttool" and pointing to "*".
  • Entries named "WindowsUpdateR" and pointing to "<$WINDIR>\System\regserv.exe /s".
  • Entries named "svchctrl" and pointing to "<$WINDIR>\system\svchctrl.exe".
  • Entries named "WindowsUpdateR" and pointing to "".
  • Entries named "WindowsUpdate" and pointing to "<$WINDIR>\System\svchostw.exe /s".
  • Entries named "WindowsUpdateR" and pointing to "<$WINDIR>\System\regserv.exe /s".
  • Entries named "isxa" and pointing to "isxa.exe".
  • Entries named "MSN" and pointing to "?<$SYSDIR>\msn.exe??/INITSERVICE".
  • Entries named "np" and pointing to "<$SYSDIR>\upnp.exe".
  • Entries named "Terminal Services" and pointing to "<$SYSDIR>\mstscc.exe".

Important: There are more autorun entries that cannot be safely described in simple words. Please use Spybot-S&D to remove them.

Files:

Please use Windows Explorer or another file manager of your choice to locate and delete these files.
  • The file at "<$WINDIR>\system\svchctrl.dll".
  • A file with an unknown location named "svchctrl.dll".
  • A file with an unknown location named "startdrv.exe".
  • The file at "<$SYSDIR>\0_exception.nls".
  • The file at "<$SYSDIR>\drivers\runtime2.sy_".
  • The file at "<$SYSDIR>\drivers\c656.tx".
  • The file at "<$SYSDIR>\bild_album.exe".
  • The file at "<$SYSDIR>\drivers\c656.tx".
  • The file at "<$WINDIR>\system\regserv.dll".
  • The file at "<$WINDIR>\system\svchctrl.dll".
  • The file at "<$WINDIR>\system\svchostw.dll".
  • The file at "<$WINDIR>\9129837.exe".
  • The file at "<$WINDIR>\hide_evr.sys".
  • The file at "<$WINDIR>\javawin.exe".
  • The file at "<$SYSDIR>\wincom32.sys".
  • The file at "<$SYSDIR>\wincom32.ini".
  • The file at "<$SYSDIR>\isxa.exe".
  • The file at "<$SYSDIR>\lo.exe".
  • The file at "<$WINDIR>\link.exe".
  • The file at "<$WINDIR>\stswm.exe".
  • The file at "<$WINDIR>\up.exe".
  • The file at "<$SYSDIR>\hook.dll".
  • The file at "<$SYSDIR>\ipv6monl.dll".
  • The file at "<$SYSDIR>\msn.exe".
  • The file at "<$SYSDIR>\upnp.exe".
  • The file at "<$SYSDIR>\mstscc.exe".
Make sure you set your file manager to display hidden and system files. If Nurech uses rootkit technologies, use our RootAlyzer or our Total Commander anti-rootkit plugins.
You will have to use a global search for files without a name specified. Be extra careful, because just the name might not be enough to identify files!

Important: There are more files that cannot be safely described in simple words. Please use Spybot-S&D to remove them.

Folders:

Please use Windows Explorer or another file manager of your choice to locate and delete these folders.
  • The directory at "<$LOCALAPPDATA>\Microsoft\Init.~tmp".
  • The directory at "<$LOCALAPPDATA>\Microsoft\Init.~tmp\44".
  • The directory at "<$LOCALAPPDATA>\Microsoft\Init.~tmp\45".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\dvd_info".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\my_staff".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\sh_docs".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\take_it".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\new_video".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\video".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\xxx".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\free".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\h_core".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\l_this".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\lunch".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\new_mp3".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\photo".
  • The directory at "<$LOCALAPPDATA>\Microsoft\WinTools\mp3".
Make sure you set your file manager to display hidden and system files. If Nurech uses rootkit technologies, use our RootAlyzer or our Total Commander anti-rootkit plugins.
You will have to use a global search for files without a name specified. Be extra careful, because just the name might not be enough to identify folders!

Registry:

You can use regedit.exe (included in Windows) to locate and delete these registry entries.
  • Delete the registry value "vvv" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\".
  • Delete the registry value "cryptpa" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Control Panel\load\".
  • Delete the registry value "pstincl" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Control Panel\load\".
  • Delete the registry key "new_drv" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
  • Delete the registry key "new_drv" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
  • Delete the registry key "new_drv" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
  • Delete the registry value "xcq" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\".
  • Remove " ,<$SYSDIR>\inet.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\javawin.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove ",<$WINDIR>\system\svchctrl.exe" from registry value "load" at "HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows\".
  • Delete the registry value "poups" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Control Panel\load\".
  • Delete the registry value "ptexcl" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Control Panel\load\".
  • Delete the registry value "uincl" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Control Panel\load\".
  • Delete the registry key "ShellBot" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\".
  • Delete the registry key "ShellBotR" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\".
  • Delete the registry key "WinUpdate" at "HKEY_LOCAL_MACHINE\SOFTWARE\".
  • Delete the registry value "<$WINDIR>\lb.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
  • Delete the registry value "<$WINDIR>\lb.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
  • Delete the registry value "<$WINDIR>\lb.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
  • Delete the registry value "$WINDIR>\ptw.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
  • Delete the registry value "$WINDIR>\ptw.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
  • Delete the registry value "$WINDIR>\ptw.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
  • Delete the registry value "wmf.1.1" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\".
  • Delete the registry value "wmf.1.2" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\".
  • Remove " ,<$SYSDIR>\winupdate.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\mdmw.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\cftmonw.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\firefoxw.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\ieupdate.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\lsasswin.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\msoffice.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\netupdate.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\servicesw.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\spoolsw.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\svchostwin.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\winlogin.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\winlogonw.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Remove " ,<$SYSDIR>\winlog.exe" from registry value "Userinit" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\".
  • Delete the registry key "unker" at "HKEY_CURRENT_USER\Software\".
If Nurech uses rootkit technologies, use our RegAlyzer, RootAlyzer or our Total Commander anti-rootkit plugins.

There are more registry entries that cannot be safely described in simple words. Please use Spybot-S&D to remove them.

Final Words:

If neither Spybot-S&D nor self help did resolve the issue or you would prefer one on one help,
  1. Please read these instructions before requesting assistance,
  2. Then start your own thread in the Malware Removal Forum where a volunteer analyst will advise you as soon as available.