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Removal instructions for Media Tab

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#1
Metallica

Metallica

    Spyware Veteran

  • GeekU Moderator
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Content is republished with permission from Malwarebytes.

What is Media Tab?

The Malwarebytes research team has determined that Media Tab 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 particular one changes your default search engine.

How do I know if my computer is affected by Media Tab?

You may see this entry in your list of installed Chrome extensions:

main.png

You may have noticed these warnings during install:

warning1.png

warning2.png

warning3.png

warning4.png

and this changed setting:

warning5.png

How did Media Tab get on my computer?

Browser hijackers use different methods for distributing themselves. This particular one was downloaded from the webstore:

webstore.png

after a redirect from their website:

website.png

How do I remove Media Tab?

Our program Malwarebytes can detect and remove this search hijacker.
  • Please download Malwarebytes for Windows to your desktop.
  • Double-click MBSetup.exe and follow the prompts to install the program.
  • When your Malwarebytes for Windows installation completes, the program opens to the Welcome to Malwarebytes screen.
  • Click on the Get started button.
  • Click Scan to start a Threat Scan.
  • When the scan is finished click Quarantine to remove the found threats.
  • Reboot the system if prompted to complete the removal process.
Is there anything else I need to do to get rid of Media Tab?
  • No, Malwarebytes removes Media Tab completely.
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 Malwarebytes Browser Guard, and the full version of Malwarebytes would have protected you against the Media Tab hijacker. It would have blocked their website, giving you a chance to stop it before it became too late.

protection2.png


Technical details for experts

Possible signs in FRST logs:

CHR DefaultSearchURL: Default -> hxxps://www.mediatab.club/sapi/search.php?q={searchTerms}&src=sdmedia&ssrc=ds
CHR DefaultSearchKeyword: Default -> hxxps://www.mediatab.club
CHR Extension: (Media Tab) - C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\mjchkfdikpidgbfpnhgmhddncfdheboc [2021-06-02]
Alterations made by the installer:

File system details [View: All details] (Selection)
---------------------------------------------------
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\mjchkfdikpidgbfpnhgmhddncfdheboc\1.0_0
       Adds the file favicon.ico"="2/2/2021 4:20 PM, 1150 bytes, A
       Adds the file manifest.json"="6/2/2021 9:40 AM, 1610 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\mjchkfdikpidgbfpnhgmhddncfdheboc\1.0_0\_metadata
       Adds the file computed_hashes.json"="6/2/2021 9:40 AM, 2171 bytes, A
       Adds the file verified_contents.json"="2/2/2021 4:20 PM, 2713 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\mjchkfdikpidgbfpnhgmhddncfdheboc\1.0_0\common
       Adds the file browseraction.js"="2/2/2021 4:20 PM, 806 bytes, A
       Adds the file contentscript.js"="2/2/2021 4:20 PM, 301 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\mjchkfdikpidgbfpnhgmhddncfdheboc\1.0_0\img
       Adds the file logo.png"="2/2/2021 4:20 PM, 9695 bytes, A
       Adds the file logo_128x.png"="6/2/2021 9:40 AM, 9883 bytes, A
       Adds the file logo_16x.png"="6/2/2021 9:40 AM, 544 bytes, A
       Adds the file logo_48x.png"="6/2/2021 9:40 AM, 2469 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\mjchkfdikpidgbfpnhgmhddncfdheboc\1.0_0\pages
       Adds the file index.html"="2/2/2021 4:20 PM, 162 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\mjchkfdikpidgbfpnhgmhddncfdheboc\1.0_0\release
       Adds the file script_release.js"="2/2/2021 4:20 PM, 2023 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\mjchkfdikpidgbfpnhgmhddncfdheboc\1.0_0\scripts
       Adds the file jquery-3.2.1.min.js"="2/2/2021 4:20 PM, 86663 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\mjchkfdikpidgbfpnhgmhddncfdheboc\1.0_0\style
       Adds the file search.png"="2/2/2021 4:20 PM, 646 bytes, A
       Adds the file style.css"="2/2/2021 4:20 PM, 7283 bytes, A

Registry details [View: All details] (Selection)
------------------------------------------------
    [HKEY_CURRENT_USER\Software\Google\Chrome\PreferenceMACs\Default\extensions.settings]
       "mjchkfdikpidgbfpnhgmhddncfdheboc"="REG_SZ", "252E56AC6F1E45ECB653BB48DDAD2671A95A1BF40588AE35A054C815E8CC7D0F"
Malwarebytes log:

Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 6/2/21
Scan Time: 9:48 AM
Log File: dcd3b0c2-c376-11eb-8cb1-080027235d76.json

-Software Information-
Version: 4.4.0.117
Components Version: 1.0.1308
Update Package Version: 1.0.41245
License: Premium

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

-Scan Summary-
Scan Type: Threat Scan
Scan Initiated By: Manual
Result: Completed
Objects Scanned: 234511
Threats Detected: 5
Threats Quarantined: 5
Time Elapsed: 2 min, 16 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: 0
(No malicious items detected)

Registry Value: 1
PUP.Optional.PushNotifications.Generic, HKCU\SOFTWARE\GOOGLE\CHROME\PREFERENCEMACS\Default\extensions.settings|mjchkfdikpidgbfpnhgmhddncfdheboc, Quarantined, 201, 838845, , , , , , 

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 1
PUP.Optional.PushNotifications.Generic, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Extensions\mjchkfdikpidgbfpnhgmhddncfdheboc, Quarantined, 201, 838845, , , , , , 

File: 3
PUP.Optional.PushNotifications.Generic, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, 201, 838845, , , , , 5762EF014DCC2775E52EEE26FB051C19, D696C0382FC731E97940F11F144F87BDF3A16BFF6A43626902C36ABCC77745C3
PUP.Optional.PushNotifications.Generic, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Preferences, Replaced, 201, 838845, , , , , 41D6439F5A6CA8E0502978FD9DD75275, 7870007716A648C6AD730477A24C924CAB592D8C5142608DAD7A750B4FF35B4D
PUP.Optional.PushNotifications.Generic, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, 201, 838845, 1.0.41245, , ame, , 5762EF014DCC2775E52EEE26FB051C19, D696C0382FC731E97940F11F144F87BDF3A16BFF6A43626902C36ABCC77745C3

Physical Sector: 0
(No malicious items detected)

WMI: 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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