Friday
2008-11-29, 14:52
The following instructions have been created to help you to get rid of "Backdoor.Nok-Nok" 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:
Backdoor.Nok-Nok hides in the system directory. When connected to a server it waits for new orders to spy on the user or to damage the system.
Removal Instructions:
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 "{2533C019-2154-48DB-AD9E-6FB789593F44}".
Files:
Please use Windows Explorer or another file manager of your choice to locate and delete these files.
The file at "<$WINDIR>\license.txt".
The file at "<$SYSDIR>\license.txt".
The file at "<$WINDIR>\nok-nok_setup.exe".
The file at "<$SYSDIR>\nok-nok_setup.exe".
The file at "<$DESKTOP>\Nok-Nok\nok-nok.zip".
The file at "<$SYSDIR>\Nok_install.EXE".
The file at "<$SYSDIR>\drivers\w32ins.sys".
Make sure you set your file manager to display hidden and system files. If Backdoor.Nok-Nok uses rootkit technologies, use our RootAlyzer (http://forums.spybot.info/downloads.php?id=8) or our Total Commander anti-rootkit plugins (http://forums.spybot.info/downloads.php?id=3).
You will have to use a global search for files without a name specified. Be extra careful, because just the name might not be enough to identify files!
Important: There are more files that cannot be safely described in simple words. Please use Spybot-S&D (http://www.safer-networking.org/index.php?page=spybotsd) to remove them.
Folders:
Please use Windows Explorer or another file manager of your choice to locate and delete these folders.
The directory at "<$DESKTOP>\Nok-Nok".
Make sure you set your file manager to display hidden and system files. If Backdoor.Nok-Nok 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 "w32ins" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "w32ins" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "w32ins" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry value "<$DESKTOP>\Nok-Nok\" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\Folders\".
Delete the registry value "<$LOCALSETTINGS>\Temp\7zO1.tmp\nok-nok_setup.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
Delete the registry value "<$LOCALSETTINGS>\Temp\7zO1.tmp\nok-nok_setup.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
Delete the registry value "<$LOCALSETTINGS>\Temp\7zO1.tmp\nok-nok_setup.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
Delete the registry value "<$SYSDIR>\Nok_install.EXE" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
Delete the registry value "<$SYSDIR>\Nok_install.EXE" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
Delete the registry value "<$SYSDIR>\Nok_install.EXE" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
If Backdoor.Nok-Nok uses rootkit technologies, use our RegAlyzer (http://www.safer-networking.org/index.php?page=regalyzer), RootAlyzer (http://forums.spybot.info/downloads.php?id=8) or our Total Commander anti-rootkit plugins (http://forums.spybot.info/downloads.php?id=3).
Final Words:
If neither Spybot-S&D nor self help did resolve the issue or you would prefer one on one help,
Please read these instructions (http://forums.spybot.info/showthread.php?t=288) before requesting assistance,
Then start your own thread in the Malware Removal Forum (http://forums.spybot.info/forumdisplay.php?f=22) where a volunteer analyst will advise you as soon as available.
Use this guide at your own risk; software should usually be better suited to remove malware, since it is able to look deeper.
If this guide was helpful to you, please consider donating towards this site (http://www.safer-networking.org/index.php?page=donate).
Threat Details:
Categories:
trojan
Description:
Backdoor.Nok-Nok hides in the system directory. When connected to a server it waits for new orders to spy on the user or to damage the system.
Removal Instructions:
Installed Software List:
You can try to uninstall products with the names listed below; for items identified by other properties or to avoid malware getting active again on uninstallation, use Spybot-S&D (http://www.safer-networking.org/index.php?page=spybotsd) or RunAlyzer (http://www.safer-networking.org/index.php?page=runalyzer) to locate and get rid of these entries.
Products that have a key or property named "{2533C019-2154-48DB-AD9E-6FB789593F44}".
Files:
Please use Windows Explorer or another file manager of your choice to locate and delete these files.
The file at "<$WINDIR>\license.txt".
The file at "<$SYSDIR>\license.txt".
The file at "<$WINDIR>\nok-nok_setup.exe".
The file at "<$SYSDIR>\nok-nok_setup.exe".
The file at "<$DESKTOP>\Nok-Nok\nok-nok.zip".
The file at "<$SYSDIR>\Nok_install.EXE".
The file at "<$SYSDIR>\drivers\w32ins.sys".
Make sure you set your file manager to display hidden and system files. If Backdoor.Nok-Nok 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 "<$DESKTOP>\Nok-Nok".
Make sure you set your file manager to display hidden and system files. If Backdoor.Nok-Nok uses rootkit technologies, use our RootAlyzer (http://forums.spybot.info/downloads.php?id=8) or our Total Commander anti-rootkit plugins (http://forums.spybot.info/downloads.php?id=3).
You will have to use a global search for files without a name specified. Be extra careful, because just the name might not be enough to identify folders!
Registry:
You can use regedit.exe (included in Windows) to locate and delete these registry entries.
Delete the registry key "w32ins" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "w32ins" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "w32ins" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry value "<$DESKTOP>\Nok-Nok\" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\Folders\".
Delete the registry value "<$LOCALSETTINGS>\Temp\7zO1.tmp\nok-nok_setup.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
Delete the registry value "<$LOCALSETTINGS>\Temp\7zO1.tmp\nok-nok_setup.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
Delete the registry value "<$LOCALSETTINGS>\Temp\7zO1.tmp\nok-nok_setup.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
Delete the registry value "<$SYSDIR>\Nok_install.EXE" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
Delete the registry value "<$SYSDIR>\Nok_install.EXE" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
Delete the registry value "<$SYSDIR>\Nok_install.EXE" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
If Backdoor.Nok-Nok 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.