Home Malware Programs Bad Toolbars BuenoSearch Toolbar

BuenoSearch Toolbar

Posted: October 22, 2013

Threat Metric

Ranking: 1,652
Threat Level: 5/10
Infected PCs: 121,311
First Seen: October 22, 2013
Last Seen: October 16, 2023
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:



C:\Users\<username>\AppData\Local\buenosearch\buenosearch\1.3.8.2\buenosearch.exe File name: buenosearch.exe
Size: 543.66 KB (543664 bytes)
MD5: fe1bb2a4132a20d353a14cb7a3c648d9
Detection count: 10,041
File type: Executable File
Mime Type: unknown/exe
Path: C:\Users\<username>\AppData\Local\buenosearch\buenosearch\1.3.8.2\buenosearch.exe
Group: Malware file
Last Updated: January 17, 2023
C:\Users\<username>\AppData\Local\buenosearch\buenosearch\1.3.12.9\buenosearch.exe File name: buenosearch.exe
Size: 514.4 KB (514408 bytes)
MD5: a08c26097dce6ac8fc86c84aa3fd24e3
Detection count: 2,600
File type: Executable File
Mime Type: unknown/exe
Path: C:\Users\<username>\AppData\Local\buenosearch\buenosearch\1.3.12.9\buenosearch.exe
Group: Malware file
Last Updated: April 27, 2022
C:\Users\<username>\AppData\Local\buenosearch\buenosearch\1.3.12.9\buenosetup.exe File name: buenosetup.exe
Size: 398.69 KB (398696 bytes)
MD5: 9b7445616c1e9912b64c0d8a8cd9c313
Detection count: 1,960
File type: Executable File
Mime Type: unknown/exe
Path: C:\Users\<username>\AppData\Local\buenosearch\buenosearch\1.3.12.9\buenosetup.exe
Group: Malware file
Last Updated: September 15, 2022
BuenoSearch.ico File name: BuenoSearch.ico
Size: 8.34 KB (8348 bytes)
MD5: a16077ad74d01d7ca79e291d1bb4b5c0
Detection count: 311
Mime Type: unknown/ico
Group: Malware file
Last Updated: July 23, 2023
%LOCALAPPDATA%\buenosearch\buenosearch\1.3.12.2\buenosearch.exe File name: buenosearch.exe
Size: 436.07 KB (436072 bytes)
MD5: 9032c1b79592d6dfeceb8b8b97dbed8a
Detection count: 230
File type: Executable File
Mime Type: unknown/exe
Path: %LOCALAPPDATA%\buenosearch\buenosearch\1.3.12.2
Group: Malware file
Last Updated: March 26, 2016
C:\Users\<username>\AppData\Local\Temp\buenosetup.exe File name: buenosetup.exe
Size: 334.69 KB (334696 bytes)
MD5: 5c28a91eb05bec8710973066b42ef329
Detection count: 82
File type: Executable File
Mime Type: unknown/exe
Path: C:\Users\<username>\AppData\Local\Temp\buenosetup.exe
Group: Malware file
Last Updated: September 23, 2022
C:\Users\<username>\AppData\Local\buenosearch\buenosearch\1.3.12.2\buenosetup.exe File name: buenosetup.exe
Size: 334.18 KB (334184 bytes)
MD5: ac114077bef75a768d002614cc8cc99a
Detection count: 73
File type: Executable File
Mime Type: unknown/exe
Path: C:\Users\<username>\AppData\Local\buenosearch\buenosearch\1.3.12.2\buenosetup.exe
Group: Malware file
Last Updated: May 12, 2022
%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
%LOCALAPPDATA%\buenosearch\buenosearch\1.3.8.2\buenosearch.exe File name: buenosearch.exe
Size: 543.66 KB (543664 bytes)
MD5: 165dcb113637d58be0bf35f5a45530e0
Detection count: 7
File type: Executable File
Mime Type: unknown/exe
Path: %LOCALAPPDATA%\buenosearch\buenosearch\1.3.8.2
Group: Malware file
Last Updated: March 26, 2016
%LOCALAPPDATA%\buenosearch\buenosearch\1.3.8.2\buenosearch.exe File name: buenosearch.exe
Size: 543.66 KB (543664 bytes)
MD5: bc7dfc517436254d580aea27295f67d8
Detection count: 3
File type: Executable File
Mime Type: unknown/exe
Path: %LOCALAPPDATA%\buenosearch\buenosearch\1.3.8.2
Group: Malware file
Last Updated: March 26, 2016

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:
http://www.buenosearch.com/?q

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