Friday
2012-09-12, 13:05
The following instructions have been created to help you to get rid of "Win32.Navi.c" 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
bho
Description:
Win32.Navi.c gets installed as browser helper object (BHO) and connects to a remote host in the background. It also alters the win.ini file and installs files into the system directory.
Removal Instructions:
Files:
Please use Windows Explorer or another file manager of your choice to locate and delete these files.
The file at "<$SYSDIR>\host23.zip".
The file at "<$SYSDIR>\hosts.db".
Make sure you set your file manager to display hidden and system files. If Win32.Navi.c 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.
Registry:
You can use regedit.exe (included in Windows) to locate and delete these registry entries.
A key in HKEY_CLASSES_ROOT\ named "SWIHOST.Blocker.1", plus associated values.
A key in HKEY_CLASSES_ROOT\ named "SWIHOST.Blocker", plus associated values.
Delete the registry key "{07F17041-CD93-4D39-A2B6-39A49DCF8CF7}" at "HKEY_CLASSES_ROOT\TypeLib\".
Delete the registry key "{C66A5803-19AF-46C4-8FCB-20B45C04F3D2}" at "HKEY_CLASSES_ROOT\Interface\".
Delete the registry key "{EBF22F53-896C-48b1-9986-0891F7709EC9}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{EBF22F53-896C-48b1-9986-0891F7709EC9}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
If Win32.Navi.c 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).
INI files:
There are more .ini file 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.
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
bho
Description:
Win32.Navi.c gets installed as browser helper object (BHO) and connects to a remote host in the background. It also alters the win.ini file and installs files into the system directory.
Removal Instructions:
Files:
Please use Windows Explorer or another file manager of your choice to locate and delete these files.
The file at "<$SYSDIR>\host23.zip".
The file at "<$SYSDIR>\hosts.db".
Make sure you set your file manager to display hidden and system files. If Win32.Navi.c 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.
Registry:
You can use regedit.exe (included in Windows) to locate and delete these registry entries.
A key in HKEY_CLASSES_ROOT\ named "SWIHOST.Blocker.1", plus associated values.
A key in HKEY_CLASSES_ROOT\ named "SWIHOST.Blocker", plus associated values.
Delete the registry key "{07F17041-CD93-4D39-A2B6-39A49DCF8CF7}" at "HKEY_CLASSES_ROOT\TypeLib\".
Delete the registry key "{C66A5803-19AF-46C4-8FCB-20B45C04F3D2}" at "HKEY_CLASSES_ROOT\Interface\".
Delete the registry key "{EBF22F53-896C-48b1-9986-0891F7709EC9}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{EBF22F53-896C-48b1-9986-0891F7709EC9}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
If Win32.Navi.c 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).
INI files:
There are more .ini file 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.
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.