Friday
2008-11-29, 22:05
The following instructions have been created to help you to get rid of "Zlob.Downloader.ixt" 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:
Trojan Downloader. Installs a library and an executable file to the Windows system directory, installs a browser helper object which links to rogue antispyware products like SpyQuake, MalwareWipe, etc.
Removal Instructions:
Files:
Please use Windows Explorer or another file manager of your choice to locate and delete these files.
The file at "<$SYSDIR>\issearch.exe".
A file with an unknown location named "issearch.exe".
Make sure you set your file manager to display hidden and system files. If Zlob.Downloader.ixt 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.
Delete the registry key "{a43385f0-7113-496d-96d7-b9b550e3fcca}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{a43385f0-7113-496d-96d7-b9b550e3fcca}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{a43385f0-7113-496d-96d7-b9b550e3fcca}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{C3703265-4671-4858-92A4-CBA6A7B3BB45}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{C3703265-4671-4858-92A4-CBA6A7B3BB45}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{C3703265-4671-4858-92A4-CBA6A7B3BB45}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{7fcf04b6-6354-47ef-b45e-a48268e92757}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{755bbd1a-aa59-456c-afeb-b4c42c4dcb6f}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{755bbd1a-aa59-456c-afeb-b4c42c4dcb6f}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{755bbd1a-aa59-456c-afeb-b4c42c4dcb6f}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{39f25b12-74ff-4079-a51f-1d70f5b08b84}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{39f25b12-74ff-4079-a51f-1d70f5b08b84}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{f4d74aaa-a178-4463-846b-b4bc87a024e0}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{f4d74aaa-a178-4463-846b-b4bc87a024e0}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{f4d74aaa-a178-4463-846b-b4bc87a024e0}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{67270207-b9ee-4d26-9270-860fdb060ca1}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{67270207-b9ee-4d26-9270-860fdb060ca1}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{67270207-b9ee-4d26-9270-860fdb060ca1}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
If Zlob.Downloader.ixt 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:
Trojan Downloader. Installs a library and an executable file to the Windows system directory, installs a browser helper object which links to rogue antispyware products like SpyQuake, MalwareWipe, etc.
Removal Instructions:
Files:
Please use Windows Explorer or another file manager of your choice to locate and delete these files.
The file at "<$SYSDIR>\issearch.exe".
A file with an unknown location named "issearch.exe".
Make sure you set your file manager to display hidden and system files. If Zlob.Downloader.ixt 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.
Delete the registry key "{a43385f0-7113-496d-96d7-b9b550e3fcca}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{a43385f0-7113-496d-96d7-b9b550e3fcca}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{a43385f0-7113-496d-96d7-b9b550e3fcca}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{C3703265-4671-4858-92A4-CBA6A7B3BB45}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{C3703265-4671-4858-92A4-CBA6A7B3BB45}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{C3703265-4671-4858-92A4-CBA6A7B3BB45}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{7fcf04b6-6354-47ef-b45e-a48268e92757}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{755bbd1a-aa59-456c-afeb-b4c42c4dcb6f}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{755bbd1a-aa59-456c-afeb-b4c42c4dcb6f}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{755bbd1a-aa59-456c-afeb-b4c42c4dcb6f}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{39f25b12-74ff-4079-a51f-1d70f5b08b84}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{39f25b12-74ff-4079-a51f-1d70f5b08b84}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{f4d74aaa-a178-4463-846b-b4bc87a024e0}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{f4d74aaa-a178-4463-846b-b4bc87a024e0}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{f4d74aaa-a178-4463-846b-b4bc87a024e0}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{67270207-b9ee-4d26-9270-860fdb060ca1}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{67270207-b9ee-4d26-9270-860fdb060ca1}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{67270207-b9ee-4d26-9270-860fdb060ca1}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
If Zlob.Downloader.ixt 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.