Removal instructions for GoSave

Content is republished with permission from Malwarebytes.

What is GoSave?

The Malwarebytes research team has determined that GoSave 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 affected by GoSave?

You may see this add-on in Internet Explorer:

or this (misdated) entry in your list of installed programs:

How did GoSave get on my computer?

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

How do I remove GoSave?

The generic uninstaller removes the offending entry and simply replaces it with a new one from the same family (in this case NextCoup).

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

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 everything is set to "Quarantine", and click Apply Actions.

Reboot your computer if prompted.

Is there anything else I need to do to get rid of GoSave?

No, Malwarebytes' Anti-Malware removes GoSave 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 GoSave hijacker. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.

Technical details for experts

Signs in a HijackThis log:

O2 - BHO: GoSave - {eab8fadc-02bb-4f05-8533-afc4db1b1ccc} - C:\Program Files\GoSave\casKuu018KB7oO.dll

The CLSID and the filename are random

Alterations made by the installer:

 
File system details  
---------------------------------------------
    Adds the folder C:\Program Files\GoSave
       Adds the file casKuu018KB7oO.dat"="11/20/2013 7:25 PM, 4392 bytes, A
       Adds the file casKuu018KB7oO.dll"="11/20/2013 7:25 PM, 641024 bytes, A
       Adds the file casKuu018KB7oO.tlb"="11/20/2014 7:25 PM, 3832 bytes, A
       Adds the file casKuu018KB7oO.x64.dll"="11/20/2013 7:25 PM, 719360 bytes, A
    Adds the folder C:\ProgramData\b76f9c79baa0b2d1
       Adds the file {C87834EB-A2A0-B9D4-AA9A-C263D1191051}.20141120192519"="11/20/2014 7:25 PM, 5916 bytes, A
    Adds the folder C:\ProgramData\GoSave
       Adds the file f822yS7O9zRK3l8.dat"="11/20/2014 7:25 PM, 4392 bytes, A
       Adds the file f822yS7O9zRK3l8.exe"="11/20/2014 7:25 PM, 4249088 bytes, A
 
Registry details  
------------------------------------------
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.]
       "(Default)"="REG_SZ", "GoSave"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.\CLSID]
       "(Default)"="REG_SZ", "{eab8fadc-02bb-4f05-8533-afc4db1b1ccc}"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.\CurVer]
       "(Default)"="REG_SZ", ".9"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\..9]
       "(Default)"="REG_SZ", "GoSave"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\..9\CLSID]
       "(Default)"="REG_SZ", "{eab8fadc-02bb-4f05-8533-afc4db1b1ccc}"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{eab8fadc-02bb-4f05-8533-afc4db1b1ccc}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640}]
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{eab8fadc-02bb-4f05-8533-afc4db1b1ccc}\InprocServer32]
       "(Default)"="REG_SZ", "C:\Program Files\GoSave\casKuu018KB7oO.dll"
       "ThreadingModel"="REG_SZ", "Apartment"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{eab8fadc-02bb-4f05-8533-afc4db1b1ccc}\ProgID]
       "(Default)"="REG_SZ", ".9"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{eab8fadc-02bb-4f05-8533-afc4db1b1ccc}\Programmable]
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{eab8fadc-02bb-4f05-8533-afc4db1b1ccc}\VersionIndependentProgID]
       "(Default)"="REG_SZ", ""
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0]
       "(Default)"="REG_SZ", "IEPluginLib"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\0\win32]
       "(Default)"="REG_SZ", "C:\Program Files\GoSave\casKuu018KB7oO.tlb"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\FLAGS]
       "(Default)"="REG_SZ", "0"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{E2343056-CC08-46AC-B898-BFC7ACF4E755}\1.0\HELPDIR]
       "(Default)"="REG_SZ", "C:\Program Files\GoSave"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{eab8fadc-02bb-4f05-8533-afc4db1b1ccc}]
       "(Default)"="REG_SZ", "GoSave"
       "NoExplorer"="REG_DWORD", 1
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\PreApproved\{eab8fadc-02bb-4f05-8533-afc4db1b1ccc}]
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext\CLSID]
       "{eab8fadc-02bb-4f05-8533-afc4db1b1ccc}"="REG_SZ", "1"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{C87834EB-A2A0-B9D4-AA9A-C263D1191051}]
       "_In"="REG_SZ", "20141120"
       "CategoryName"="REG_SZ", "Apps"
       "DisplayIcon"="REG_SZ", "C:\Windows\System32\msiexec.exe"
       "DisplayName"="REG_SZ", "GoSave"
       "DisplayVersion"="REG_SZ", "2.2.0.1428"
       "InstallDate"="REG_SZ", "20131023"
       "NoModify"="REG_DWORD", 1
       "NoRepair"="REG_DWORD", 1
       "Publisher"="REG_SZ", ""
       "SilentUninstall"="REG_SZ", ""C:\ProgramData\GoSave\f822yS7O9zRK3l8.exe" !x:1 /s /n /i:"ExecuteCommands;UninstallCommands""
       "UninstallString"="REG_SZ", ""C:\ProgramData\GoSave\f822yS7O9zRK3l8.exe" !x:1 /s /n /i:"ExecuteCommands;UninstallCommands""
       "URLInfoAbout"="REG_SZ", ""
       "URLUpdateInfo"="REG_SZ", ""
    [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\ApprovedExtensionsMigration\{eab8fadc-02bb-4f05-8533-afc4db1b1ccc}]

Malwarebytes Anti-Malware log:

Malwarebytes Anti-Malware
www.malwarebytes.org
 
Scan Date: 11/20/2014
Scan Time: 7:38:18 PM
Logfile: mbamGoSave.txt
Administrator: Yes
 
Version: 2.00.3.1025
Malware Database: v2014.11.20.06
Rootkit Database: v2014.11.18.01
License: Free
Malware Protection: Disabled
Malicious Website Protection: Disabled
Self-protection: Disabled
 
OS: Windows 7 Service Pack 1
CPU: x86
File System: NTFS
User: Malwarebytes
 
Scan Type: Threat Scan
Result: Completed
Objects Scanned: 276522
Time Elapsed: 3 min, 29 sec
 
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled
 
Processes: 0
(No malicious items detected)
 
Modules: 0
(No malicious items detected)
 
Registry Keys: 13
PUP.Optional.MultiPlug, HKLM\SOFTWARE\CLASSES\CLSID\{eab8fadc-02bb-4f05-8533-afc4db1b1ccc}, Quarantined, [fc0ae75773096ec85e87843b1de4817f], 
PUP.Optional.MultiPlug, HKLM\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXPLORER\BROWSER HELPER OBJECTS\{EAB8FADC-02BB-4F05-8533-AFC4DB1B1CCC}, Quarantined, [fc0ae75773096ec85e87843b1de4817f], 
PUP.Optional.MultiPlug, HKLM\SOFTWARE\CLASSES\., Quarantined, [fc0ae75773096ec85e87843b1de4817f], 
PUP.Optional.MultiPlug, HKLM\SOFTWARE\CLASSES\..9, Quarantined, [fc0ae75773096ec85e87843b1de4817f], 
PUP.Optional.MultiPlug, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXT\SETTINGS\{EAB8FADC-02BB-4F05-8533-AFC4DB1B1CCC}, Quarantined, [fc0ae75773096ec85e87843b1de4817f], 
PUP.Optional.MultiPlug, HKCU\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXT\STATS\{EAB8FADC-02BB-4F05-8533-AFC4DB1B1CCC}, Quarantined, [fc0ae75773096ec85e87843b1de4817f], 
PUP.Optional.MultiPlug, HKLM\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\EXT\PREAPPROVED\{EAB8FADC-02BB-4F05-8533-AFC4DB1B1CCC}, Quarantined, [fc0ae75773096ec85e87843b1de4817f], 
PUP.Optional.MultiPlug, HKLM\SOFTWARE\CLASSES\CLSID\{EAB8FADC-02BB-4F05-8533-AFC4DB1B1CCC}\INPROCSERVER32, Quarantined, [fc0ae75773096ec85e87843b1de4817f], 
PUP.Optional.MultiPlug, HKLM\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\{C87834EB-A2A0-B9D4-AA9A-C263D1191051}, Quarantined, [fe0856e82b518ea871d93f948a77b64a], 
PUP.Optional.GoSave.A, HKLM\SOFTWARE\CLASSES\TYPELIB\{E2343056-CC08-46AC-B898-BFC7ACF4E755}, Quarantined, [25e172ccc5b7999d05e1d25d27dc6898], 
PUP.Optional.GoSave.A, HKLM\SOFTWARE\CLASSES\INTERFACE\{7041156A-0D2B-4DCD-A8EE-D0608BFCB2D0}, Quarantined, [25e172ccc5b7999d05e1d25d27dc6898], 
PUP.Optional.GoSave.A, HKLM\SOFTWARE\CLASSES\INTERFACE\{9B41579A-1996-42F9-8F84-7B7786818CEF}, Quarantined, [25e172ccc5b7999d05e1d25d27dc6898], 
PUP.Optional.GoSave.A, HKLM\SOFTWARE\CLASSES\INTERFACE\{EAF749DC-CD87-4B04-B22A-D4AC3FBCB2BC}, Quarantined, [25e172ccc5b7999d05e1d25d27dc6898], 
 
Registry Values: 0
(No malicious items detected)
 
Registry Data: 0
(No malicious items detected)
 
Folders: 2
PUP.Optional.GoSave.A, C:\ProgramData\GoSave, Quarantined, [95719ca28af295a1c71ec867937039c7], 
PUP.Optional.GoSave.A, C:\Program Files\GoSave, Quarantined, [25e172ccc5b7999d05e1d25d27dc6898], 
 
Files: 7
PUP.Optional.MultiPlug, C:\Program Files\GoSave\casKuu018KB7oO.dll, Quarantined, [fc0ae75773096ec85e87843b1de4817f], 
PUP.Optional.MultiPlug, C:\ProgramData\GoSave\f822yS7O9zRK3l8.exe, Quarantined, [fe0856e82b518ea871d93f948a77b64a], 
PUP.Optional.MultiPlug, C:\Users\{username}\Desktop\GoSave1.exe, Quarantined, [937375c9ceae54e273d7d201f20f847c], 
PUP.Optional.MultiPlug, C:\Program Files\GoSave\casKuu018KB7oO.x64.dll, Quarantined, [b0566ed04834d36384615768936eb24e], 
PUP.Optional.GoSave.A, C:\ProgramData\GoSave\f822yS7O9zRK3l8.dat, Quarantined, [95719ca28af295a1c71ec867937039c7], 
PUP.Optional.GoSave.A, C:\Program Files\GoSave\casKuu018KB7oO.dat, Quarantined, [25e172ccc5b7999d05e1d25d27dc6898], 
PUP.Optional.GoSave.A, C:\Program Files\GoSave\casKuu018KB7oO.tlb, Quarantined, [25e172ccc5b7999d05e1d25d27dc6898], 
 
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.

#1
Metallica

Posted 20 November 2014 - 01:27 PM

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