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Removal instructions for Discovery App

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What is Discovery App?

The Malwarebytes research team has determined that Discovery App 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 Discovery App?

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 Discovery App get on my computer?

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

How do I remove Discovery App?

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 Discovery App?
  • No, Malwarebytes Anti-Malware removes Discovery App 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 Discovery App 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: Discovery App - {6f4d87b1-31ba-475a-aad6-b157e31e897e} - C:\Program Files (x86)\Discovery App\Extensions\6f4d87b1-31ba-475a-aad6-b157e31e897e.dll
Possible signs in FRST logs:

 BHO-x32: Discovery App -> {6f4d87b1-31ba-475a-aad6-b157e31e897e} -> C:\Program Files (x86)\Discovery App\Extensions\6f4d87b1-31ba-475a-aad6-b157e31e897e.dll [2015-10-28] () FF Extension: Discovery App - C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\{profile}.default\Extensions\firefox@www.ratediscoverymarket.com.xpi [2015-10-28] [not signed] C:\Program Files (x86)\Discovery AppDiscovery App (HKLM-x32\...\Discovery App) (Version: 2.0.5779.42049 - Discovery App) <==== ATTENTION
Alterations made by the installer:

File system details [View: All details] (Selection)---------------------------------------------------    Adds the folder C:\Program Files (x86)\Discovery App       Adds the file 7za.exe"="23/10/2015 23:10, 536064 bytes, A       Adds the file Uninstaller.exe"="29/10/2015 07:21, 313520 bytes, A    Adds the folder C:\Program Files (x86)\Discovery App\Extensions       Adds the file 6f4d87b1-31ba-475a-aad6-b157e31e897e.dll"="28/10/2015 08:10, 146128 bytes, A       Adds the file firefox@www.ratediscoverymarket.com.xpi"="28/10/2015 05:11, 6720 bytes, A    Adds the folder C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\{profile}.default\extensions       Adds the file firefox@www.ratediscoverymarket.com.xpi"="28/10/2015 05:11, 6720 bytes, ARegistry details [View: All details] (Selection)------------------------------------------------    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{E104B9E4-01BA-4AAF-9957-6A525CC5451A}]       "(Default)"="REG_SZ", "43FC1BDB-C448-428A-94E4-ED24C58A0187"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{2F7896AE-9F05-4F5A-A3FE-6F561FA28063}]       "(Default)"="REG_SZ", "IDiscoveryAppBHO"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{2F7896AE-9F05-4F5A-A3FE-6F561FA28063}\ProxyStubClsid32]       "(Default)"="REG_SZ", "{00020424-0000-0000-C000-000000000046}"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{2F7896AE-9F05-4F5A-A3FE-6F561FA28063}\TypeLib]       "(Default)"="REG_SZ", "{14B8FEAC-8EEE-4630-861B-4DF1FED43127}"       "Version"="REG_SZ", "1.0"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{14B8FEAC-8EEE-4630-861B-4DF1FED43127}\1.0]       "(Default)"="REG_SZ", "DiscoveryAppIEClientLib"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{14B8FEAC-8EEE-4630-861B-4DF1FED43127}\1.0\0\win32]       "(Default)"="REG_SZ", "C:\Program Files (x86)\Discovery App\Extensions\6f4d87b1-31ba-475a-aad6-b157e31e897e.dll"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{14B8FEAC-8EEE-4630-861B-4DF1FED43127}\1.0\FLAGS]       "(Default)"="REG_SZ", "0"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{14B8FEAC-8EEE-4630-861B-4DF1FED43127}\1.0\HELPDIR]       "(Default)"="REG_SZ", "C:\Program Files (x86)\Discovery App\Extensions"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6f4d87b1-31ba-475a-aad6-b157e31e897e}]       "(Default)"="REG_SZ", "Discovery App"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6f4d87b1-31ba-475a-aad6-b157e31e897e}\InprocServer32]       "(Default)"="REG_SZ", "C:\Program Files (x86)\Discovery App\Extensions\6f4d87b1-31ba-475a-aad6-b157e31e897e.dll"       "ThreadingModel"="REG_SZ", "Apartment"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6f4d87b1-31ba-475a-aad6-b157e31e897e}\Programmable]    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6f4d87b1-31ba-475a-aad6-b157e31e897e}\TypeLib]       "(Default)"="REG_SZ", "{14b8feac-8eee-4630-861b-4df1fed43127}"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6f4d87b1-31ba-475a-aad6-b157e31e897e}\Version]       "(Default)"="REG_SZ", "1.0"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B853E835-9F24-4F4B-B55C-E554D15CCCD2}]       "(Default)"="REG_SZ", "1"       "{B853E835-9F24-4F4B-B55C-E554D15CCCD2}"="REG_SZ", "{B853E835-9F24-4F4B-B55C-E554D15CCCD2}"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{E104B9E4-01BA-4AAF-9957-6A525CC5451A}]       "(Default)"="REG_SZ", "43FC1BDB-C448-428A-94E4-ED24C58A0187"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F83D1872-D9FF-47F8-B5A0-49CC51E24EE8}]       "(Default)"="REG_SZ", "f515c9ad-9d9a-4549-b828-7e9219840a99"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2F7896AE-9F05-4F5A-A3FE-6F561FA28063}]       "(Default)"="REG_SZ", "IDiscoveryAppBHO"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2F7896AE-9F05-4F5A-A3FE-6F561FA28063}\ProxyStubClsid32]       "(Default)"="REG_SZ", "{00020424-0000-0000-C000-000000000046}"    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2F7896AE-9F05-4F5A-A3FE-6F561FA28063}\TypeLib]       "(Default)"="REG_SZ", "{14B8FEAC-8EEE-4630-861B-4DF1FED43127}"       "Version"="REG_SZ", "1.0"    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\DiscoveryApp]       "cg"="REG_SZ", "f515c9ad-9d9a-4549-b828-7e9219840a99"    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{6f4d87b1-31ba-475a-aad6-b157e31e897e}]       "(Default)"="REG_SZ", "Discovery App"       "NoExplorer"="REG_DWORD", 1    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Discovery App]       "DisplayIcon"="REG_SZ", ""C:\Program Files (x86)\Discovery App\uninstaller.exe""       "DisplayName"="REG_SZ", "Discovery App"       "DisplayVersion"="REG_SZ", "2.0.5779.42049"       "EstimatedSize"="REG_DWORD", 978       "HelpLink"="REG_SZ", "mailto:support@ratediscoverymarket.com"       "InstallDate"="REG_SZ", "20151029"       "InstallLocation"="REG_SZ", "C:\Program Files (x86)\Discovery App"       "NoModify"="REG_DWORD", 1       "NoRepair"="REG_DWORD", 1       "Publisher"="REG_SZ", "Discovery App"       "QuietUninstallString"="REG_SZ", ""C:\Program Files (x86)\Discovery App\uninstaller.exe""       "UninstallString"="REG_SZ", ""C:\Program Files (x86)\Discovery App\uninstaller.exe""       "URLInfoAbout"="REG_SZ", "http://www.ratediscoverymarket.com/support"       "URLUpdateInfo"="REG_SZ", "http://www.ratediscoverymarket.com"
Malwarebytes Anti-Malware log:

Malwarebytes Anti-Malwarewww.malwarebytes.orgScan Date: 29/10/2015Scan Time: 09:22Logfile: mbamDiscoveryApp.txtAdministrator: YesVersion: 2.2.0.1020Malware Database: v2015.10.29.02Rootkit Database: v2015.10.28.01License: PremiumMalware Protection: DisabledMalicious Website Protection: EnabledSelf-protection: DisabledOS: Windows 7 Service Pack 1CPU: x64File System: NTFSUser: {username}Scan Type: Threat ScanResult: CompletedObjects Scanned: 305107Time Elapsed: 4 min, 52 secMemory: EnabledStartup: EnabledFilesystem: EnabledArchives: EnabledRootkits: EnabledHeuristics: EnabledPUP: EnabledPUM: EnabledProcesses: 0(No malicious items detected)Modules: 0(No malicious items detected)Registry Keys: 20PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\CLSID\{E104B9E4-01BA-4AAF-9957-6A525CC5451A}, Quarantined, [f1c5db81d3b8e1553bec44b93dc48c74], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\CLSID\{E104B9E4-01BA-4AAF-9957-6A525CC5451A}, Quarantined, [f1c5db81d3b8e1553bec44b93dc48c74], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\CLSID\{E104B9E4-01BA-4AAF-9957-6A525CC5451A}, Quarantined, [f1c5db81d3b8e1553bec44b93dc48c74], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\CLSID\{6f4d87b1-31ba-475a-aad6-b157e31e897e}, Quarantined, [fabcb3a96229cd699e6cc868e41ea15f], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\CLSID\{6f4d87b1-31ba-475a-aad6-b157e31e897e}, Quarantined, [fabcb3a96229cd699e6cc868e41ea15f], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\TYPELIB\{14b8feac-8eee-4630-861b-4df1fed43127}, Quarantined, [fabcb3a96229cd699e6cc868e41ea15f], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\INTERFACE\{2F7896AE-9F05-4F5A-A3FE-6F561FA28063}, Quarantined, [fabcb3a96229cd699e6cc868e41ea15f], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\INTERFACE\{2F7896AE-9F05-4F5A-A3FE-6F561FA28063}, Quarantined, [fabcb3a96229cd699e6cc868e41ea15f], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\INTERFACE\{2F7896AE-9F05-4F5A-A3FE-6F561FA28063}, Quarantined, [fabcb3a96229cd699e6cc868e41ea15f], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\TYPELIB\{14b8feac-8eee-4630-861b-4df1fed43127}, Quarantined, [fabcb3a96229cd699e6cc868e41ea15f], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\TYPELIB\{14b8feac-8eee-4630-861b-4df1fed43127}, Quarantined, [fabcb3a96229cd699e6cc868e41ea15f], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{6F4D87B1-31BA-475A-AAD6-B157E31E897E}, Quarantined, [fabcb3a96229cd699e6cc868e41ea15f], PUP.Optional.Yontoo, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXT\SETTINGS\{6F4D87B1-31BA-475A-AAD6-B157E31E897E}, Quarantined, [fabcb3a96229cd699e6cc868e41ea15f], PUP.Optional.Yontoo, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXT\STATS\{6F4D87B1-31BA-475A-AAD6-B157E31E897E}, Quarantined, [fabcb3a96229cd699e6cc868e41ea15f], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\CLSID\{B853E835-9F24-4F4B-B55C-E554D15CCCD2}, Quarantined, [fbbb99c322692e089f87e01dcd3409f7], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\CLSID\{B853E835-9F24-4F4B-B55C-E554D15CCCD2}, Quarantined, [fbbb99c322692e089f87e01dcd3409f7], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\CLASSES\CLSID\{F83D1872-D9FF-47F8-B5A0-49CC51E24EE8}, Quarantined, [4b6b5dff0d7e7bbbbb6f4ab337ca36ca], PUP.Optional.Yontoo, HKLM\SOFTWARE\CLASSES\WOW6432NODE\CLSID\{F83D1872-D9FF-47F8-B5A0-49CC51E24EE8}, Quarantined, [4b6b5dff0d7e7bbbbb6f4ab337ca36ca], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\Discovery App, Quarantined, [e7cf7be17c0f0c2ab410a2f3966be41c], PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\DiscoveryApp, Quarantined, [a70f4a1296f53cfa4cd224a001025ca4], Registry Values: 1PUP.Optional.Yontoo, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\DISCOVERY APP|URLInfoAbout, http://www.ratediscoverymarket.com/support, Quarantined, [f5c11d3fd5b6d165d04f00c423e011ef]Registry Data: 0(No malicious items detected)Folders: 3PUP.Optional.Yontoo, C:\Program Files (x86)\Discovery App, Quarantined, [7a3c253798f345f10661076b09f96997], PUP.Optional.Yontoo, C:\Program Files (x86)\Discovery App\Extensions, Quarantined, [7a3c253798f345f10661076b09f96997], PUP.Optional.Yontoo, C:\Users\{username}\AppData\Local\Temp\Discovery App, Quarantined, [ebcbf06c1378d75ffb6d89e9d82ae818], Files: 6PUP.Optional.Yontoo, C:\Program Files (x86)\Discovery App\Extensions\6f4d87b1-31ba-475a-aad6-b157e31e897e.dll, Quarantined, [fabcb3a96229cd699e6cc868e41ea15f], PUP.Optional.Yontoo, C:\Users\{username}\Desktop\DiscoveryApp.exe, Quarantined, [fbbbcb91315a62d41aaa5a3b17ea38c8], PUP.Optional.Yontoo, C:\Program Files (x86)\Discovery App\Uninstaller.exe, Quarantined, [e7cf7be17c0f0c2ab410a2f3966be41c], PUP.Optional.Yontoo, C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\{profile}.default\extensions\firefox@www.ratediscoverymarket.com.xpi, Quarantined, [52644e0e5734e45250cdecd8d82bf60a], PUP.Optional.Yontoo, C:\Program Files (x86)\Discovery App\7za.exe, Quarantined, [7a3c253798f345f10661076b09f96997], PUP.Optional.Yontoo, C:\Program Files (x86)\Discovery App\Extensions\firefox@www.ratediscoverymarket.com.xpi, Quarantined, [7a3c253798f345f10661076b09f96997], 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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