Friday
2009-01-10, 20:06
The following instructions have been created to help you to get rid of "TwainTech" manually.
Use this guide at your own risk; software should usually be better suited to remove malware, since it is able to look deeper.
If this guide was helpful to you, please consider donating towards this site (http://www.safer-networking.org/index.php?page=donate).
Threat Details:
Removal Instructions:
Autorun:
Please use Spybot-S&D (http://www.safer-networking.org/index.php?page=spybotsd), RunAlyzer (http://www.safer-networking.org/index.php?page=runalyzer) or msconfig.exe to remove the following autorun entries.
Entries named "{2CF0B992-5EEB-4143-99C0-5297EF71F444}" and pointing to "rundll32.exe <$SYSDIR>\STLBDIST.DLL".
Entries named "Bakra" and pointing to "<$SYSDIR>\IEHost.exe".
Entries named "Dsi" and pointing to "<$SYSDIR>\DP-HIM.EXE".
Entries named "RunWindowsUpdate" and pointing to "<$WINDIR>\UPTODATE.EXE".
Important: There are more autorun entries that cannot be safely described in simple words. Please use Spybot-S&D (http://www.safer-networking.org/index.php?page=spybotsd) to remove them.
Files:
Please use Windows Explorer or another file manager of your choice to locate and delete these files.
The file at "<$WINDIR>\PREINSTT.EXE".
The file at "<$WINDIR>\TWAINTEC.DLL".
The file at "<$WINDIR>\INF\TWAINTEC.INF".
The file at "<$SYSDIR>\datastore.dll".
The file at "<$SYSDIR>\master.dll".
The file at "<$SYSDIR>\SearchBar.htm".
The file at "<$SYSDIR>\Searchx.htm".
The file at "<$SYSDIR>\stlbdist.DLL".
The file at "<$SYSDIR>\stlbdist.XML".
The file at "<$SYSDIR>\sub.dll".
The file at "<$SYSDIR>\terrabyte.exe".
The file at "c:\bdl14185.exe".
The file at "c:\couponsandoffers4.exe".
The file at "c:\ESB.exe".
Make sure you set your file manager to display hidden and system files. If TwainTech uses rootkit technologies, use our RootAlyzer (http://forums.spybot.info/downloads.php?id=8) or our Total Commander anti-rootkit plugins (http://forums.spybot.info/downloads.php?id=3).
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!
Registry:
You can use regedit.exe (included in Windows) to locate and delete these registry entries.
Delete the registry key "{000020DD-C72E-4113-AF77-DD56626C6C42}" at "HKEY_CLASSES_ROOT\CLSID\".
A key in HKEY_CLASSES_ROOT\ named "TwaintecDll.TwaintecDllObj.1", plus associated values.
Delete the registry key "twaintec" at "HKEY_LOCAL_MACHINE\Software\".
If TwainTech uses rootkit technologies, use our RegAlyzer (http://www.safer-networking.org/index.php?page=regalyzer), RootAlyzer (http://forums.spybot.info/downloads.php?id=8) or our Total Commander anti-rootkit plugins (http://forums.spybot.info/downloads.php?id=3).
Final Words:
If neither Spybot-S&D nor self help did resolve the issue or you would prefer one on one help,
Please read these instructions (http://forums.spybot.info/showthread.php?t=288) before requesting assistance,
Then start your own thread in the Malware Removal Forum (http://forums.spybot.info/forumdisplay.php?f=22) where a volunteer analyst will advise you as soon as available.
Use this guide at your own risk; software should usually be better suited to remove malware, since it is able to look deeper.
If this guide was helpful to you, please consider donating towards this site (http://www.safer-networking.org/index.php?page=donate).
Threat Details:
Removal Instructions:
Autorun:
Please use Spybot-S&D (http://www.safer-networking.org/index.php?page=spybotsd), RunAlyzer (http://www.safer-networking.org/index.php?page=runalyzer) or msconfig.exe to remove the following autorun entries.
Entries named "{2CF0B992-5EEB-4143-99C0-5297EF71F444}" and pointing to "rundll32.exe <$SYSDIR>\STLBDIST.DLL".
Entries named "Bakra" and pointing to "<$SYSDIR>\IEHost.exe".
Entries named "Dsi" and pointing to "<$SYSDIR>\DP-HIM.EXE".
Entries named "RunWindowsUpdate" and pointing to "<$WINDIR>\UPTODATE.EXE".
Important: There are more autorun entries that cannot be safely described in simple words. Please use Spybot-S&D (http://www.safer-networking.org/index.php?page=spybotsd) to remove them.
Files:
Please use Windows Explorer or another file manager of your choice to locate and delete these files.
The file at "<$WINDIR>\PREINSTT.EXE".
The file at "<$WINDIR>\TWAINTEC.DLL".
The file at "<$WINDIR>\INF\TWAINTEC.INF".
The file at "<$SYSDIR>\datastore.dll".
The file at "<$SYSDIR>\master.dll".
The file at "<$SYSDIR>\SearchBar.htm".
The file at "<$SYSDIR>\Searchx.htm".
The file at "<$SYSDIR>\stlbdist.DLL".
The file at "<$SYSDIR>\stlbdist.XML".
The file at "<$SYSDIR>\sub.dll".
The file at "<$SYSDIR>\terrabyte.exe".
The file at "c:\bdl14185.exe".
The file at "c:\couponsandoffers4.exe".
The file at "c:\ESB.exe".
Make sure you set your file manager to display hidden and system files. If TwainTech uses rootkit technologies, use our RootAlyzer (http://forums.spybot.info/downloads.php?id=8) or our Total Commander anti-rootkit plugins (http://forums.spybot.info/downloads.php?id=3).
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!
Registry:
You can use regedit.exe (included in Windows) to locate and delete these registry entries.
Delete the registry key "{000020DD-C72E-4113-AF77-DD56626C6C42}" at "HKEY_CLASSES_ROOT\CLSID\".
A key in HKEY_CLASSES_ROOT\ named "TwaintecDll.TwaintecDllObj.1", plus associated values.
Delete the registry key "twaintec" at "HKEY_LOCAL_MACHINE\Software\".
If TwainTech uses rootkit technologies, use our RegAlyzer (http://www.safer-networking.org/index.php?page=regalyzer), RootAlyzer (http://forums.spybot.info/downloads.php?id=8) or our Total Commander anti-rootkit plugins (http://forums.spybot.info/downloads.php?id=3).
Final Words:
If neither Spybot-S&D nor self help did resolve the issue or you would prefer one on one help,
Please read these instructions (http://forums.spybot.info/showthread.php?t=288) before requesting assistance,
Then start your own thread in the Malware Removal Forum (http://forums.spybot.info/forumdisplay.php?f=22) where a volunteer analyst will advise you as soon as available.