Friday
2008-11-29, 14:52
The following instructions have been created to help you to get rid of "BachKhoaAntivirus" 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:
Categories:
trojan
Description:
BachKhoaAntivirus copies an executable file into a directory called "Bkav2006". Additionally it starts itself in autorun as "BkavFw" and "runner1" without user consent.
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 "BkavFw" and pointing to "<$SYSDRIVE>\Program Files\Bkav2006\Bkav2006.exe TASKBAR".
Entries named "runner1" and pointing to "<$WINDIR>\<$REGMATCH1> *".
Entries named "Twain" and pointing to "<$PROGRAMFILES>\Twain\Twain.exe".
Installed Software List:
You can try to uninstall products with the names listed below; for items identified by other properties or to avoid malware getting active again on uninstallation, use Spybot-S&D (http://www.safer-networking.org/index.php?page=spybotsd) or RunAlyzer (http://www.safer-networking.org/index.php?page=runalyzer) to locate and get rid of these entries.
Products that have a key or property named "Bkav".
Files:
Please use Windows Explorer or another file manager of your choice to locate and delete these files.
The file at "<$SYSDIR>\BkavAuto.vxd".
The file at "<$SYSDIR>\drivers\BkavAuto.sys".
The file at "<$SYSDIR>\drivers\SysLib.sys".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\ContextMenu.dll".
The file at "<$DESKTOP>\Bkav2006.exe".
The file at "<$PROGRAMS>\Bach Khoa Antivirus\Bkav2006.lnk".
The file at "<$PROGRAMS>\Bach Khoa Antivirus\UnInstall Bkav2006.lnk".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\BKAV.LOG".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\BKAV.VRL".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Bkav2006.exe".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Bkav2006.lnk".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\BKAVE.LOG".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\BkavHook.dll".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Dll16.dll".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Dll32.dll".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help.exe".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\UnInstall Bkav2006.lnk".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\bkav.css".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\chitiet.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\chitiete.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\HelpBanquyen.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\Helpbtg.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\Helpdiet.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\HelpGth.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\HelpLiqu.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\HelpLiveUpdate.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\Helpnhki.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\Helpnhl.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\HelpOpt.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\HelpVrls.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\images\arrow.gif".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\images\DangKy.gif".
The file at "<$PROGRAMFILES>\Twain\Twain.exe".
Make sure you set your file manager to display hidden and system files. If BachKhoaAntivirus uses rootkit technologies, use our RootAlyzer (http://forums.spybot.info/downloads.php?id=8) or our Total Commander anti-rootkit plugins (http://forums.spybot.info/downloads.php?id=3).
You will have to use a global search for files without a name specified. Be extra careful, because just the name might not be enough to identify files!
Important: There are more files that cannot be safely described in simple words. Please use Spybot-S&D (http://www.safer-networking.org/index.php?page=spybotsd) to remove them.
Folders:
Please use Windows Explorer or another file manager of your choice to locate and delete these folders.
The directory at "<$PROGRAMS>\Bach Khoa Antivirus".
The directory at "<$SYSDRIVE>\Program Files\Bkav2006".
The directory at "<$SYSDRIVE>\Program Files\Bkav2006\Backup".
The directory at "<$SYSDRIVE>\Program Files\Bkav2006\Help".
The directory at "<$SYSDRIVE>\Program Files\Bkav2006\Help\images".
Make sure you set your file manager to display hidden and system files. If BachKhoaAntivirus 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 folders!
Registry:
You can use regedit.exe (included in Windows) to locate and delete these registry entries.
Delete the registry key "{7E41911F-13AA-11D3-A831-00104B9E30B8}" at "HKEY_CLASSES_ROOT\CLSID\".
A key in HKEY_CLASSES_ROOT\ named "CopyPathExt.CopyPathContextMenu", plus associated values.
A key in HKEY_CLASSES_ROOT\ named "CopyPathExt.CopyPathContextMenu.1", plus associated values.
Delete the registry key "Bkav" at "HKEY_CLASSES_ROOT\*\shellex\ContextMenuHandlers\".
Delete the registry key "Bkav" at "HKEY_CLASSES_ROOT\Directory\shellex\ContextMenuHandlers\".
Delete the registry key "Bkav" at "HKEY_CLASSES_ROOT\Drive\shellex\ContextMenuHandlers\".
Delete the registry key "Bkav" at "HKEY_LOCAL_MACHINE\SOFTWARE\".
Delete the registry key "BkavAuto" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "BkavAuto" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "BkavAuto" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
If BachKhoaAntivirus 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:
Categories:
trojan
Description:
BachKhoaAntivirus copies an executable file into a directory called "Bkav2006". Additionally it starts itself in autorun as "BkavFw" and "runner1" without user consent.
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 "BkavFw" and pointing to "<$SYSDRIVE>\Program Files\Bkav2006\Bkav2006.exe TASKBAR".
Entries named "runner1" and pointing to "<$WINDIR>\<$REGMATCH1> *".
Entries named "Twain" and pointing to "<$PROGRAMFILES>\Twain\Twain.exe".
Installed Software List:
You can try to uninstall products with the names listed below; for items identified by other properties or to avoid malware getting active again on uninstallation, use Spybot-S&D (http://www.safer-networking.org/index.php?page=spybotsd) or RunAlyzer (http://www.safer-networking.org/index.php?page=runalyzer) to locate and get rid of these entries.
Products that have a key or property named "Bkav".
Files:
Please use Windows Explorer or another file manager of your choice to locate and delete these files.
The file at "<$SYSDIR>\BkavAuto.vxd".
The file at "<$SYSDIR>\drivers\BkavAuto.sys".
The file at "<$SYSDIR>\drivers\SysLib.sys".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\ContextMenu.dll".
The file at "<$DESKTOP>\Bkav2006.exe".
The file at "<$PROGRAMS>\Bach Khoa Antivirus\Bkav2006.lnk".
The file at "<$PROGRAMS>\Bach Khoa Antivirus\UnInstall Bkav2006.lnk".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\BKAV.LOG".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\BKAV.VRL".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Bkav2006.exe".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Bkav2006.lnk".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\BKAVE.LOG".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\BkavHook.dll".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Dll16.dll".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Dll32.dll".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help.exe".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\UnInstall Bkav2006.lnk".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\bkav.css".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\chitiet.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\chitiete.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\HelpBanquyen.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\Helpbtg.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\Helpdiet.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\HelpGth.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\HelpLiqu.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\HelpLiveUpdate.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\Helpnhki.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\Helpnhl.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\HelpOpt.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\HelpVrls.htm".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\images\arrow.gif".
The file at "<$SYSDRIVE>\Program Files\Bkav2006\Help\images\DangKy.gif".
The file at "<$PROGRAMFILES>\Twain\Twain.exe".
Make sure you set your file manager to display hidden and system files. If BachKhoaAntivirus uses rootkit technologies, use our RootAlyzer (http://forums.spybot.info/downloads.php?id=8) or our Total Commander anti-rootkit plugins (http://forums.spybot.info/downloads.php?id=3).
You will have to use a global search for files without a name specified. Be extra careful, because just the name might not be enough to identify files!
Important: There are more files that cannot be safely described in simple words. Please use Spybot-S&D (http://www.safer-networking.org/index.php?page=spybotsd) to remove them.
Folders:
Please use Windows Explorer or another file manager of your choice to locate and delete these folders.
The directory at "<$PROGRAMS>\Bach Khoa Antivirus".
The directory at "<$SYSDRIVE>\Program Files\Bkav2006".
The directory at "<$SYSDRIVE>\Program Files\Bkav2006\Backup".
The directory at "<$SYSDRIVE>\Program Files\Bkav2006\Help".
The directory at "<$SYSDRIVE>\Program Files\Bkav2006\Help\images".
Make sure you set your file manager to display hidden and system files. If BachKhoaAntivirus 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 folders!
Registry:
You can use regedit.exe (included in Windows) to locate and delete these registry entries.
Delete the registry key "{7E41911F-13AA-11D3-A831-00104B9E30B8}" at "HKEY_CLASSES_ROOT\CLSID\".
A key in HKEY_CLASSES_ROOT\ named "CopyPathExt.CopyPathContextMenu", plus associated values.
A key in HKEY_CLASSES_ROOT\ named "CopyPathExt.CopyPathContextMenu.1", plus associated values.
Delete the registry key "Bkav" at "HKEY_CLASSES_ROOT\*\shellex\ContextMenuHandlers\".
Delete the registry key "Bkav" at "HKEY_CLASSES_ROOT\Directory\shellex\ContextMenuHandlers\".
Delete the registry key "Bkav" at "HKEY_CLASSES_ROOT\Drive\shellex\ContextMenuHandlers\".
Delete the registry key "Bkav" at "HKEY_LOCAL_MACHINE\SOFTWARE\".
Delete the registry key "BkavAuto" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "BkavAuto" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "BkavAuto" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
If BachKhoaAntivirus 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.