Manual Removal Guide for GIGAsearch

The following instructions have been created to help you to get rid of "Ad.GIGAsearch" manually.
Use this guide at your own risk; software should usually be better suited to remove malware, since it is able to look deeper.

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Threat Details:

Categories:

• hijacker

Description:

Ad.GIGAsearch registers a Browser Helper Object (BHO). Ad.GIGAsearch redirects the search and start pages of the browser. It creates a folder within the Windows directory and drops advertising desktop links.

Links (be careful!):

: ttp://www.gigasearch.biz

Removal Instructions:

Files:

Please use Windows Explorer or another file manager of your choice to locate and delete these files.

• The file at "<$WINDIR>\Giga\bmp00001.bmp".
• The file at "<$WINDIR>\Giga\bmp00002.bmp".
• The file at "<$WINDIR>\Giga\bmp00003.bmp".
• The file at "<$WINDIR>\Giga\bmp00004.bmp".
• The file at "<$WINDIR>\Giga\bmp00005.bmp".
• The file at "<$WINDIR>\Giga\bmp00006.bmp".
• The file at "<$WINDIR>\Giga\bmp00007.bmp".
• The file at "<$WINDIR>\Giga\bmp00008.bmp".
• The file at "<$WINDIR>\Giga\bmp00009.bmp".
• The file at "<$WINDIR>\Giga\bmp00010.bmp".
• The file at "<$WINDIR>\Giga\bmp00011.bmp".
• The file at "<$WINDIR>\Giga\dating.ico".
• The file at "<$WINDIR>\Giga\mortgages.ico".
• The file at "<$WINDIR>\Giga\pharmacy.ico".
• The file at "<$WINDIR>\Giga\poker.ico".
• The file at "<$WINDIR>\Giga\spyware.ico".

Make sure you set your file manager to display hidden and system files. If Ad.GIGAsearch uses rootkit technologies, use the rootkit scanner integrated into Spybot-S&D 2.x or our Total Commander anti-rootkit plugins.
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 to remove them.

Folders:

Please use Windows Explorer or another file manager of your choice to locate and delete these folders.

• The directory at "<$WINDIR>\Giga".

Make sure you set your file manager to display hidden and system files. If Ad.GIGAsearch uses rootkit technologies, use our RootAlyzer or our Total Commander anti-rootkit plugins.
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 "{1F080480-802D-468F-AF65-D031EDCBFD4A}" at "HKEY_CLASSES_ROOT\Interface\".
• Delete the registry key "{79837A1F-9D73-4242-A3C1-9F2312EB8EF2}" at "HKEY_CLASSES_ROOT\TypeLib\".
• Delete the registry key "{C1EA1782-8E6E-4ea4-9800-B68DE41F1A26}" at "HKEY_CLASSES_ROOT\CLSID\".
• Delete the registry value "{C1EA1782-8E6E-4ea4-9800-B68DE41F1A26}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Toolbar\".
• Remove "<regexpr>http\:..gigasearch\.biz. " from registry value "Search Page" at "HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\".
• Remove "<regexpr>http\:..gigasearch\.biz. " from registry value "Start Page" at "HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\".

If Ad.GIGAsearch uses rootkit technologies, use our RegAlyzer, RootAlyzer or our Total Commander anti-rootkit plugins.

Final Words:

If neither Spybot-S&D nor self help did resolve the issue or you would prefer one on one help,

1. Please read these instructions before requesting assistance,
2. Then start your own thread in the Malware Removal Forum where a volunteer analyst will advise you as soon as available.