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What is YT Adblocker?

The Malwarebytes research team has determined that YT Adblocker is a search hijacker and a forced Firefox extension.

How do I know if my computer is affected by YT Adblocker?

You may see these warnings during install:

warning1.png

warning2.png

warning3.png

You may see this extension in your list of installed Firefox extensions:
main.png

How did YT Adblocker get on my computer?
Forced extensions use typical methods for distributing themselves.
They try to keep users trapped until they agree to install the extension.

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How do I remove YT Adblocker?

Our program Malwarebytes can detect and remove this 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 YT Adblocker?
  • No, Malwarebytes removes YT Adblocker completely.
How would the full version of Malwarebytes help protect me?

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

We protect our customers from these extensions by blocking the sites that spread them:

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Technical details for experts

Possible signs in FRST logs:

 
 FF Extension: No Name - C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\{profile}.default\Extensions\{01166e60-d740-440c-b640-6bf964504b3c}.xpi [2018-02-01]
Alterations made by the installer:
 
File system details [View: All details] (Selection)
---------------------------------------------------
    Adds the folder C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\{profile}.default\browser-extension-data\{01166e60-d740-440c-b640-6bf964504b3c}
    In the existing folder C:\Users\{username}\AppData\Roaming\Mozilla\Firefox\Profiles\{profile}.default\extensions
       Adds the file {01166e60-d740-440c-b640-6bf964504b3c}.xpi"="2/1/2018 9:10 AM, 8566 bytes, A
Malwarebytes log:
 
Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 2/1/18
Scan Time: 11:35 AM
Log File: acf3caae-073b-11e8-9930-080027750297.json
Administrator: Yes

-Software Information-
Version: 3.3.1.2183
Components Version: 1.0.262
Update Package Version: 1.0.3838
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: 243429
Threats Detected: 1
Threats Quarantined: 1
Time Elapsed: 1 min, 54 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: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 0
(No malicious items detected)

File: 1
PUP.Optional.SearchEngineHijack, C:\USERS\{username}\APPDATA\ROAMING\MOZILLA\FIREFOX\PROFILES\{profile}.default\EXTENSIONS\{01166E60-D740-440C-B640-6BF964504B3C}.XPI, Quarantined, [1572], [485906],1.0.3838

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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