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Removal instructions for Search Web Know

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What is Search Web Know?

The Malwarebytes research team has determined that Search Web Know is a browser hijacker. These so-called "hijackers" manipulate your browser(s), for example to change your startpage or searchscopes, so that the affected browser visits their site or one of their choice. This one also displays advertisements.

How do I know if my computer is effected by Search Web Know?

This is how the first screen of the installer looks:

main.png

And you may see these browser extensions/add-ons:

warning1.png

warning2.png

and this entry in your list of installed programs:

warning4.png

How did Search Web Know get on my computer?

Browser hijackers use different methods for distributing themselves. This particular one was bundled with other software.

How do I remove Search Web Know?

Our program Malwarebytes Anti-Malware can detect and remove this potentially unwanted application.

  • Please download Malwarebytes Anti-Malware to your desktop.
  • Double-click mbam-setup-version.exe and follow the prompts to install the program.
  • At the end, be sure a check-mark is placed next to the following:
    • Enable free trial of Malwarebytes Anti-Malware Premium
    • Launch Malwarebytes Anti-Malware
  • Then click Finish.
  • If an update is found, you will be prompted to download and install the latest version.
  • Once the program has loaded, select Scan Now. Or select the Threat Scan from the Scan menu.
  • When the scan is complete, make sure that all Threats are selected, and click Remove Selected.
  • Restart your computer when prompted to do so.
Is there anything else I need to do to get rid of Search Web Know?
  • No, Malwarebytes Anti-Malware removes Search Web Know completely.
How would the full version of Malwarebytes Anti-Malware help protect me?

We hope our application and this guide have helped you eradicate this hijacker.

As you can see below the full version of Malwarebytes Anti-Malware would have protected you against the Search Web Know hijacker. It would have warned you before the application could install itself, giving you a chance to stop it before it became too late.

protection1.png

Technical details for experts

Signs in a HijackThis log:

O2 - BHO: Search Web Know - {9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe} - C:\Program Files (x86)\Search Web Know\Extensions\9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe.dll
Possible signs in FRST logs:

 BHO-x32: Search Web Know -> {9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe} -> C:\Program Files (x86)\Search Web Know\Extensions\9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe.dll [2016-01-24] () FF Extension: Search Web Know - C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\{profile}.default\Extensions\firefox@www.searchwebknow.com.xpi [2016-01-24] [not signed] C:\Program Files (x86)\Search Web KnowSearch Web Know (HKLM-x32\...\Search Web Know) (Version: 2.0.5867.40775 - Search Web Know) <==== ATTENTION
Alterations made by the installer:

File system details [View: All details] (Selection)---------------------------------------------------    Adds the folder C:\Program Files (x86)\Search Web Know       Adds the file 7za.exe"="20/01/2016 00:40, 536064 bytes, A       Adds the file Uninstaller.exe"="25/01/2016 07:39, 313504 bytes, A    Adds the folder C:\Program Files (x86)\Search Web Know\Extensions       Adds the file 9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe.dll"="24/01/2016 08:36, 145616 bytes, A       Adds the file firefox@www.searchwebknow.com.xpi"="24/01/2016 06:53, 9149 bytes, A    Adds the folder C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\{profile}.default\extensions       Adds the file firefox@www.searchwebknow.com.xpi"="24/01/2016 06:53, 9149 bytes, ARegistry details [View: All details] (Selection)------------------------------------------------    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{6955F27E-9703-418E-8B32-1F2FEC8B2B73}]       "(Default)"="REG_SZ", "ISearchWebKnowBHO"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{6955F27E-9703-418E-8B32-1F2FEC8B2B73}\ProxyStubClsid32]       "(Default)"="REG_SZ", "{00020424-0000-0000-C000-000000000046}"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{6955F27E-9703-418E-8B32-1F2FEC8B2B73}\TypeLib]       "(Default)"="REG_SZ", "{CDBB0AA9-F5DA-41F9-8FC5-774566A28878}"       "Version"="REG_SZ", "1.0"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{CDBB0AA9-F5DA-41F9-8FC5-774566A28878}\1.0]       "(Default)"="REG_SZ", "SearchWebKnowIEClientLib"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{CDBB0AA9-F5DA-41F9-8FC5-774566A28878}\1.0\0\win32]       "(Default)"="REG_SZ", "C:\Program Files (x86)\Search Web Know\Extensions\9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe.dll"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{CDBB0AA9-F5DA-41F9-8FC5-774566A28878}\1.0\FLAGS]       "(Default)"="REG_SZ", "0"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{CDBB0AA9-F5DA-41F9-8FC5-774566A28878}\1.0\HELPDIR]       "(Default)"="REG_SZ", "C:\Program Files (x86)\Search Web Know\Extensions"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{99415057-7C50-439D-AA20-02D83C071B61}]       "(Default)"="REG_SZ", "1"       "{99415057-7C50-439D-AA20-02D83C071B61}"="REG_SZ", "{99415057-7C50-439D-AA20-02D83C071B61}"       "1"="REG_SZ", ""    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe}]       "(Default)"="REG_SZ", "Search Web Know"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe}\InprocServer32]       "(Default)"="REG_SZ", "C:\Program Files (x86)\Search Web Know\Extensions\9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe.dll"       "ThreadingModel"="REG_SZ", "Apartment"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe}\Programmable]    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe}\TypeLib]       "(Default)"="REG_SZ", "{cdbb0aa9-f5da-41f9-8fc5-774566a28878}"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe}\Version]       "(Default)"="REG_SZ", "1.0"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F83D1872-D9FF-47F8-B5A0-49CC51E24EE8}]       "(Default)"="REG_SZ", "15874de0-879b-454f-8578-8873e5588a01"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6955F27E-9703-418E-8B32-1F2FEC8B2B73}]       "(Default)"="REG_SZ", "ISearchWebKnowBHO"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6955F27E-9703-418E-8B32-1F2FEC8B2B73}\ProxyStubClsid32]       "(Default)"="REG_SZ", "{00020424-0000-0000-C000-000000000046}"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{6955F27E-9703-418E-8B32-1F2FEC8B2B73}\TypeLib]       "(Default)"="REG_SZ", "{CDBB0AA9-F5DA-41F9-8FC5-774566A28878}"       "Version"="REG_SZ", "1.0"    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe}]       "(Default)"="REG_SZ", "Search Web Know"       "NoExplorer"="REG_DWORD", 1    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Search Web Know]       "DisplayIcon"="REG_SZ", ""C:\Program Files (x86)\Search Web Know\uninstaller.exe""       "DisplayName"="REG_SZ", "Search Web Know"       "DisplayVersion"="REG_SZ", "2.0.5867.40775"       "EstimatedSize"="REG_DWORD", 980       "HelpLink"="REG_SZ", "mailto:support@searchwebknow.com"       "InstallDate"="REG_SZ", "20160125"       "InstallLocation"="REG_SZ", "C:\Program Files (x86)\Search Web Know"       "NoModify"="REG_DWORD", 1       "NoRepair"="REG_DWORD", 1       "Publisher"="REG_SZ", "Search Web Know"       "QuietUninstallString"="REG_SZ", ""C:\Program Files (x86)\Search Web Know\uninstaller.exe""       "UninstallString"="REG_SZ", ""C:\Program Files (x86)\Search Web Know\uninstaller.exe""       "URLInfoAbout"="REG_SZ", "http://www.searchwebknow.com/support"       "URLUpdateInfo"="REG_SZ", "http://www.searchwebknow.com"    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\SearchWebKnow]       "cg"="REG_SZ", "15874de0-879b-454f-8578-8873e5588a01"
Malwarebytes Anti-Malware log:

Malwarebytes Anti-Malwarewww.malwarebytes.orgScan Date: 25/01/2016Scan Time: 08:59Logfile: mbamSearchWebKnow.txtAdministrator: YesVersion: 2.2.0.1020Malware Database: v2016.01.24.05Rootkit Database: v2016.01.20.01License: PremiumMalware Protection: DisabledMalicious Website Protection: EnabledSelf-protection: DisabledOS: Windows 7 Service Pack 1CPU: x64File System: NTFSUser: {username}Scan Type: Threat ScanResult: CompletedObjects Scanned: 317637Time Elapsed: 5 min, 54 secMemory: EnabledStartup: EnabledFilesystem: EnabledArchives: EnabledRootkits: EnabledHeuristics: EnabledPUP: EnabledPUM: EnabledProcesses: 0(No malicious items detected)Modules: 0(No malicious items detected)Registry Keys: 17PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\CLSID\{99415057-7C50-439D-AA20-02D83C071B61}, Quarantined, [2550d36a6237171f19872736a062a45c], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\CLSID\{99415057-7C50-439D-AA20-02D83C071B61}, Quarantined, [2550d36a6237171f19872736a062a45c], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\CLSID\{9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe}, Quarantined, [0d686dd007921c1ac1d54d44c042fd03], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\CLSID\{9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe}, Quarantined, [0d686dd007921c1ac1d54d44c042fd03], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\TYPELIB\{cdbb0aa9-f5da-41f9-8fc5-774566a28878}, Quarantined, [0d686dd007921c1ac1d54d44c042fd03], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\INTERFACE\{6955F27E-9703-418E-8B32-1F2FEC8B2B73}, Quarantined, [0d686dd007921c1ac1d54d44c042fd03], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\INTERFACE\{6955F27E-9703-418E-8B32-1F2FEC8B2B73}, Quarantined, [0d686dd007921c1ac1d54d44c042fd03], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\INTERFACE\{6955F27E-9703-418E-8B32-1F2FEC8B2B73}, Quarantined, [0d686dd007921c1ac1d54d44c042fd03], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\TYPELIB\{cdbb0aa9-f5da-41f9-8fc5-774566a28878}, Quarantined, [0d686dd007921c1ac1d54d44c042fd03], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\TYPELIB\{cdbb0aa9-f5da-41f9-8fc5-774566a28878}, Quarantined, [0d686dd007921c1ac1d54d44c042fd03], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{9CCFBEA0-8E85-41CA-B3D1-5DDBE4FF9DBE}, Quarantined, [0d686dd007921c1ac1d54d44c042fd03], PUP.Optional.Yontoo, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXT\SETTINGS\{9CCFBEA0-8E85-41CA-B3D1-5DDBE4FF9DBE}, Quarantined, [0d686dd007921c1ac1d54d44c042fd03], PUP.Optional.Yontoo, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXT\STATS\{9CCFBEA0-8E85-41CA-B3D1-5DDBE4FF9DBE}, Quarantined, [0d686dd007921c1ac1d54d44c042fd03], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\CLSID\{F83D1872-D9FF-47F8-B5A0-49CC51E24EE8}, Quarantined, [c7aecf6e73264cea3170372610f223dd], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\CLSID\{F83D1872-D9FF-47F8-B5A0-49CC51E24EE8}, Quarantined, [c7aecf6e73264cea3170372610f223dd], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\Search Web Know, Quarantined, [5f16211c6831e4529c083c9fc140a25e], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\SearchWebKnow, Quarantined, [9dd84bf20396211548bc46f7f21229d7], Registry Values: 0(No malicious items detected)Registry Data: 0(No malicious items detected)Folders: 3PUP.Optional.Yontoo, C:\Program Files (x86)\Search Web Know, Quarantined, [0075013c2d6c2a0c542712c4a85a14ec], PUP.Optional.Yontoo, C:\Program Files (x86)\Search Web Know\Extensions, Quarantined, [0075013c2d6c2a0c542712c4a85a14ec], PUP.Optional.Yontoo, C:\Users\{username}\AppData\Local\Temp\Search Web Know, Quarantined, [680de9549aff41f55e1ee7ef03fff20e], Files: 6PUP.Optional.Yontoo, C:\Program Files (x86)\Search Web Know\Extensions\9ccfbea0-8e85-41ca-b3d1-5ddbe4ff9dbe.dll, Quarantined, [0d686dd007921c1ac1d54d44c042fd03], PUP.Optional.Yontoo, C:\Users\{username}\Desktop\SearchWebKnow(Sanbreel type2).exe, Quarantined, [13624df0c0d99b9bc0e4f0ebbb46837d], PUP.Optional.Yontoo, C:\Program Files (x86)\Search Web Know\Uninstaller.exe, Quarantined, [5f16211c6831e4529c083c9fc140a25e], PUP.Optional.Yontoo, C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\{profile}.default\extensions\firefox@www.searchwebknow.com.xpi, Quarantined, [0471a895badf4ee857abb38a37cd5da3], PUP.Optional.Yontoo, C:\Program Files (x86)\Search Web Know\7za.exe, Quarantined, [0075013c2d6c2a0c542712c4a85a14ec], PUP.Optional.Yontoo, C:\Program Files (x86)\Search Web Know\Extensions\firefox@www.searchwebknow.com.xpi, Quarantined, [0075013c2d6c2a0c542712c4a85a14ec], Physical Sectors: 0(No malicious items detected)(end)
As mentioned before the full version of Malwarebytes Anti-Malware could have protected your computer against this threat.

We use different ways of protecting your computer(s):

  • Dynamically Blocks Malware Sites & Servers
  • Malware Execution Prevention
Save yourself the hassle and get protected.

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