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Removal instructions for YogaSearch

- - - - - ikmapcaeknfgfmjlibnhcbchfablc

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Metallica

Metallica

    Spyware Veteran

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Content is republished with permission from Malwarebytes.

What is YogaSearch?

The Malwarebytes research team has determined that YogaSearch 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 hijacks your search results.

How do I know if my computer is affected by YogaSearch?

You may see this entry in your list of installed software:

warning4.png

this Chrome extension:

main.png

and this icon in your Chrome menu:

icons.png

and you may see a new shortcut for Chrome on your desktop with a different argument than the original:

compare.png

Note: The argument loads the extension when you use the new shortcut. The properties screen of the original shortcut is on the left.

How did YogaSearch get on my computer?

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

How do I remove YogaSearch?

Our program Malwarebytes can detect and remove this potentially unwanted program.
  • Please download Malwarebytes to your desktop.
  • Double-click mb3-setup-consumer-{version}.exe and follow the prompts to install the program.
  • Then click Finish.
  • Once the program has fully updated, select Scan Now on the Dashboard. Or select the Threat Scan from the Scan menu.
  • If another update of the definitions is available, it will be implemented before the rest of the scanning procedure.
  • 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 YogaSearch?
  • No, Malwarebytes removes YogaSearch completely.
  • You can remove the new shortcut from the current users' desktop, but it should be clean now.
How would the full version of Malwarebytes 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 would have protected you against the YogaSearch hijacker. It would have blocked the connection the extension tries to make during install:

protection2.png


Technical details for experts

Possible signs in FRST logs:

 C:\Users\{username}\Desktop\Google Chrome.lnk

Yoga Search (HKLM-x32\...\YogaSearch) (Version:  - )

ShortcutWithArgument: C:\Users\{username}\Desktop\Google Chrome.lnk -> C:\Program Files (x86)\Google\Chrome\Application\chrome.exe (Google Inc.) -> --load-extension="C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Extensions\ikmapcaeknfgfmjlibnhcbchfablckbpa"

Alterations made by the installer:

File system details [View: All details] (Selection)
---------------------------------------------------
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Extensions\ikmapcaeknfgfmjlibnhcbchfablckbpa
       Adds the file favicon.ico"="9/8/2017 9:36 AM, 370070 bytes, A
       Adds the file home.html"="9/8/2017 9:36 AM, 4842 bytes, A
       Adds the file icon.png"="9/8/2017 9:36 AM, 2334 bytes, A
       Adds the file icon128.png"="9/8/2017 9:36 AM, 6664 bytes, A
       Adds the file icon16.png"="9/8/2017 9:36 AM, 648 bytes, A
       Adds the file icon48.png"="9/8/2017 9:36 AM, 2334 bytes, A
       Adds the file manifest.json"="9/8/2017 9:36 AM, 2062 bytes, A
       Adds the file Postback.exe"="9/7/2017 4:16 PM, 57344 bytes, A
       Adds the file tab.html"="9/8/2017 9:36 AM, 4842 bytes, A
    In the existing folder C:\Users\{username}\Desktop
       Adds the file Google Chrome.lnk"="9/8/2017 9:36 AM, 2396 bytes, A

Registry details [View: All details] (Selection)
------------------------------------------------
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Postback_RASAPI32]
       "ConsoleTracingMask"="REG_DWORD", -65536
       "EnableConsoleTracing"="REG_DWORD", 0
       "EnableFileTracing"="REG_DWORD", 0
       "FileDirectory"="REG_EXPAND_SZ, "%windir%\tracing"
       "FileTracingMask"="REG_DWORD", -65536
       "MaxFileSize"="REG_DWORD", 1048576
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Postback_RASMANCS]
       "ConsoleTracingMask"="REG_DWORD", -65536
       "EnableConsoleTracing"="REG_DWORD", 0
       "EnableFileTracing"="REG_DWORD", 0
       "FileDirectory"="REG_EXPAND_SZ, "%windir%\tracing"
       "FileTracingMask"="REG_DWORD", -65536
       "MaxFileSize"="REG_DWORD", 1048576
    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{762c9773-bac3-4aee-bade-472ab019d766}]
       "(Default)"="REG_SZ", ""
    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{7bed3cde-71b5-455e-9f7c-f3c6610ffeca}]
       "(Default)"="REG_SZ", ""
    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\YogaSearch]
       "(Default)"="REG_SZ", ""
       "DisplayName"="REG_SZ", "Yoga Search"
       "UninstallString"="REG_SZ", ""C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Extensions\ikmapcaeknfgfmjlibnhcbchfablckbpa\Uninstall.exe""

Malwarebytes log:

Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 9/8/17
Scan Time: 12:25 PM
Log File: fc780241-947f-11e7-a918-080027750297.json
Administrator: Yes

-Software Information-
Version: 3.2.2.2018
Components Version: 1.0.188
Update Package Version: 1.0.2753
License: Premium

-System Information-
OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
User: {computername}\{username}

-Scan Summary-
Scan Type: Threat Scan
Result: Completed
Objects Scanned: 318419
Threats Detected: 12
Threats Quarantined: 12
Time Elapsed: 1 min, 39 sec

-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Detect
PUM: Detect

-Scan Details-
Process: 0
(No malicious items detected)

Module: 0
(No malicious items detected)

Registry Key: 1
PUP.Optional.YogaSearch, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\YogaSearch, Delete-on-Reboot, [8123], [430730],1.0.2753

Registry Value: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 1
PUP.Optional.YogaSearch.ShrtCln, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\EXTENSIONS\IKMAPCAEKNFGFMJLIBNHCBCHFABLCKBPA, Delete-on-Reboot, [8210], [432810],1.0.2753

File: 10
PUP.Optional.YogaSearch.ShrtCln, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Extensions\ikmapcaeknfgfmjlibnhcbchfablckbpa\favicon.ico, Delete-on-Reboot, [8210], [432810],1.0.2753
PUP.Optional.YogaSearch.ShrtCln, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Extensions\ikmapcaeknfgfmjlibnhcbchfablckbpa\home.html, Delete-on-Reboot, [8210], [432810],1.0.2753
PUP.Optional.YogaSearch.ShrtCln, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Extensions\ikmapcaeknfgfmjlibnhcbchfablckbpa\icon.png, Delete-on-Reboot, [8210], [432810],1.0.2753
PUP.Optional.YogaSearch.ShrtCln, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Extensions\ikmapcaeknfgfmjlibnhcbchfablckbpa\icon128.png, Delete-on-Reboot, [8210], [432810],1.0.2753
PUP.Optional.YogaSearch.ShrtCln, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Extensions\ikmapcaeknfgfmjlibnhcbchfablckbpa\icon16.png, Delete-on-Reboot, [8210], [432810],1.0.2753
PUP.Optional.YogaSearch.ShrtCln, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Extensions\ikmapcaeknfgfmjlibnhcbchfablckbpa\icon48.png, Delete-on-Reboot, [8210], [432810],1.0.2753
PUP.Optional.YogaSearch.ShrtCln, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Extensions\ikmapcaeknfgfmjlibnhcbchfablckbpa\manifest.json, Delete-on-Reboot, [8210], [432810],1.0.2753
PUP.Optional.YogaSearch.ShrtCln, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Extensions\ikmapcaeknfgfmjlibnhcbchfablckbpa\Postback.exe, Delete-on-Reboot, [8210], [432810],1.0.2753
PUP.Optional.YogaSearch.ShrtCln, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Extensions\ikmapcaeknfgfmjlibnhcbchfablckbpa\tab.html, Delete-on-Reboot, [8210], [432810],1.0.2753
PUP.Optional.YogaSearch, C:\USERS\{username}\DESKTOP\YOGASEARCH.EXE, Delete-on-Reboot, [8123], [430734],1.0.2753

Physical Sector: 0
(No malicious items detected)


(end)
As mentioned before the full version of Malwarebytes 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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