Home Malware Programs Bad Toolbars BuenoSearch Toolbar

BuenoSearch Toolbar

Posted: October 22, 2013

Threat Metric

Ranking: 1,041
Threat Level: 5/10
Infected PCs: 125,623
First Seen: October 22, 2013
Last Seen: March 10, 2025
OS(es) Affected: Windows


BuenoSearch Toolbar is a Web browser toolbar that may install itself into Google Chrome, Internet Explorer and Mozilla Firefox Web browsers. BuenoSearch Toolbar may declare to enhance the computer user's Web browsing quality; however, in truth, it may cause unwanted PC problems. BuenoSearch Toolbar may proliferate and integrate itself into major Web browser as an extra tool through packaged freeware that computer users can download from insecure download websites. Once installed, BuenoSearch Toolbar may alter the default start page, search provider or a new tab page with an affiliated website such as Buenosearch.com. BuenoSearch Toolbar may trace the PC user's online surfing habits by recording browsing data and send and use it for targeted marketing purposes. BuenoSearch Toolbar may embed a plug-in, add-on or browser extension on the Web browser, which may be used to display unwanted pop-up ads and messages on the PC. BuenoSearch Toolbar may aim to generate advertising income from clicks on ads and messages.

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:



BuenoSearch.ico File name: BuenoSearch.ico
Size: 8.34 KB (8348 bytes)
MD5: a16077ad74d01d7ca79e291d1bb4b5c0
Detection count: 321
Mime Type: unknown/ico
Group: Malware file
Last Updated: February 28, 2025
%LOCALAPPDATA%\buenosearch\buenosearch\1.3.12.9\buenosetup.exe File name: buenosetup.exe
Size: 392.7 KB (392704 bytes)
MD5: 421250c5c3111206ef45daec3d3fc38f
Detection count: 129
File type: Executable File
Mime Type: unknown/exe
Path: %LOCALAPPDATA%\buenosearch\buenosearch\1.3.12.9
Group: Malware file
Last Updated: March 26, 2016
%LOCALAPPDATA%\buenosearch\buenosearch\1.3.8.2\buenosearch.exe File name: buenosearch.exe
Size: 585.13 KB (585136 bytes)
MD5: 797c2943ced8a2edf38c9da850f7f318
Detection count: 15
File type: Executable File
Mime Type: unknown/exe
Path: %LOCALAPPDATA%\buenosearch\buenosearch\1.3.8.2
Group: Malware file
Last Updated: March 26, 2016
%PROGRAMFILES%\buenosearch LTD\buenosearch\1.8.28.7\bh\buenosearch.dll File name: buenosearch.dll
Size: 280.98 KB (280984 bytes)
MD5: 5176f89533ced0dd0918071079443c11
Detection count: 7
File type: Dynamic link library
Mime Type: unknown/dll
Path: %PROGRAMFILES%\buenosearch LTD\buenosearch\1.8.28.7\bh
Group: Malware file
Last Updated: June 17, 2014

More files

Registry Modifications

The following newly produced Registry Values are:

CLSID{0BDDE35F-64F7-49C3-99B2-404E899C49F7}{24236608-609C-42C5-B13C-A8A3EC921850}{28B1A706-4B97-4EB1-8B32-125042685AD9}{33575A26-D9CF-40C6-8A3E-116F17201C7F}{37EB75F2-7392-4DBE-B5AD-147EC6D7BF5F}{4BDFD19F-93D7-49CE-B554-5C215FDC0136}{4CC15FBA-46A4-4CB5-BFAF-F2335365AE76}{5B6E533F-F78F-4525-B316-312BAF1295D1}{67FCE87F-F3EF-4A3C-87C2-8BD46E68807B}{7307CF0F-7173-4FBF-8649-B149916DD322}{80A5E38C-5F6B-485F-BD97-0B5BE991FAD5}{828DC97A-2277-4E10-92A9-4907FA0922A9}{8322EB6E-B594-41F6-A30B-CF3F800E1874}{9544D727-A26F-4D57-AF38-4496088640EA}{AC4C30BF-7D5F-4EAB-9C2A-454178F079AA}{BAB04997-93AD-4C13-805A-0409199700BB}{BC6F9C26-93EA-4C6D-A4A7-C1FA333B4BBE}{E6772887-C1E1-405E-94BB-D8760A1CF8DF}{E975527B-ABE7-40B3-B5C1-385016913E3B}{EFA4B5B1-6C76-4B20-BCDB-D41A93E79053}{EFC32678-546B-4367-8B25-B40BF45CC1A3}{F1C81E40-2485-4DB6-8C9D-04BD596B281E}File name without pathBuenosearch.lnkhttp_www.buenosearch.com_0.localstoragehttp_www.buenosearch.com_0.localstorage-journalRegexp file mask%WinDir%\System32\Tasks\Buenosearch%WINDIR%\System32\Tasks\EPUpdaterHKEY..\..\..\..{RegistryKeys}Software\buenosearchSoftware\buenosearch LTDSOFTWARE\Classes\buenosearch.buenosearchappCoreSOFTWARE\Classes\buenosearch.buenosearchappCore.1SOFTWARE\Classes\buenosearch.buenosearchdskBndSOFTWARE\Classes\buenosearch.buenosearchdskBnd.1SOFTWARE\Classes\buenosearch.buenosearchHlprSOFTWARE\Classes\buenosearch.buenosearchHlpr.1SOFTWARE\Classes\esrv.buenosearchESrvcSOFTWARE\Classes\esrv.buenosearchESrvc.1Software\Microsoft\Internet Explorer\Approved Extensions\{828DC97A-2277-4E10-92A9-4907FA0922A9}Software\Microsoft\Internet Explorer\Approved Extensions\{8322EB6E-B594-41F6-A30B-CF3F800E1874}Software\Microsoft\Internet Explorer\Approved Extensions\{F1C81E40-2485-4DB6-8C9D-04BD596B281E}Software\Microsoft\Internet Explorer\DOMStorage\buenosearch.comSoftware\Microsoft\Internet Explorer\DOMStorage\www.buenosearch.comSOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{708D0DD7-FBC0-4437-B525-C098F450A62C}Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage\buenosearch.comSoftware\Microsoft\Internet Explorer\LowRegistry\DOMStorage\www.buenosearch.comSoftware\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\buenosearch.exeSOFTWARE\Microsoft\Internet Explorer\Toolbar\{828DC97A-2277-4E10-92A9-4907FA0922A9}SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\BuenosearchSOFTWARE\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{F1C81E40-2485-4DB6-8C9D-04BD596B281E}Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{828DC97A-2277-4E10-92A9-4907FA0922A9}Software\Microsoft\Windows\CurrentVersion\Ext\Settings\{F1C81E40-2485-4DB6-8C9D-04BD596B281E}Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{828DC97A-2277-4E10-92A9-4907FA0922A9}Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{F1C81E40-2485-4DB6-8C9D-04BD596B281E}SOFTWARE\Microsoft\Windows\CurrentVersion\Run\buenosearchSOFTWARE\Wow6432Node\buenosearchSOFTWARE\Wow6432Node\buenosearch LTDSOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{708D0DD7-FBC0-4437-B525-C098F450A62C}SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Toolbar\{828DC97A-2277-4E10-92A9-4907FA0922A9}SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{F1C81E40-2485-4DB6-8C9D-04BD596B281E}HKEY_LOCAL_MACHINE\Software\[APPLICATION]\Microsoft\Windows\CurrentVersion\Uninstall..{Uninstaller}Bueno Chrome Toolbarbuenosearch

Additional Information

The following directories were created:
%ALLUSERSPROFILE%\buenosearch%AppData%\buenosearch%AppData%\buenosearch LTD%LOCALAPPDATA%\buenosearch%PROGRAMFILES%\buenosearch LTD%PROGRAMFILES(x86)%\buenosearch LTD%ProgramFiles%\buenosearch%ProgramFiles(x86)%\buenosearch%TEMP%\mt_ffx\buenosearch%TEMP%\mt_ffx\buenosearch LTD%USERPROFILE%\AppData\LocalLow\buenosearch LTD%userprofile%\appdata\locallow\buenosearch
The following URL's were detected:
buenosearch.com

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