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Content is republished with permission from Malwarebytes.

What is Easy Speedtest?

The Malwarebytes research team has determined that Easy Speedtest is a potentially unwanted program that behaves like adware.
This particular one adds advertisements at the top of the Google search results.

How do I know if my computer is affected by Easy Speedtest?

You may see these warnings during install:





and this entry in your list of installed Chrome extensions:



You will see this icon in your Chrome menu-bar:



and this screen when you click on that icon:



How did Easy Speedtest get on my computer?

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



after a redirect from their website:



Even though the website says the extension is compatible with Firefox, you will see this prompt when you try to install:



How do I remove Easy Speedtest?

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 Easy Speedtest?

• No, Malwarebytes removes Easy Speedtest completely.

How would the full version of Malwarebytes help protect me?

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

As you can see below the full version of Malwarebytes would have protected you against the Easy Speedtest adware. It would have blocked the website before it became too late.

Technical details for experts

Possible signs in FRST logs:

CHR Extension: (Easy Speedtest) - C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi [2019-06-05]

Significant changes 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\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0
       Adds the file manifest.json"="6/5/2019 9:19 AM, 6628 bytes, A
       Adds the file popup.html"="5/10/2019 3:08 PM, 307 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\_metadata
       Adds the file computed_hashes.json"="6/5/2019 9:19 AM, 15446 bytes, A
       Adds the file verified_contents.json"="5/13/2019 6:47 PM, 2097 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\assets
       Adds the file 128-logo.png"="6/5/2019 9:19 AM, 19618 bytes, A
       Adds the file 16-logo.png"="6/5/2019 9:19 AM, 891 bytes, A
       Adds the file 48-logo.png"="6/5/2019 9:19 AM, 5126 bytes, A
       Adds the file logo.png"="5/7/2019 4:58 PM, 1306788 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\js
       Adds the file background.js"="5/7/2019 4:58 PM, 1796 bytes, A
       Adds the file p.js"="5/10/2019 3:08 PM, 943 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\kfnnfabidihajnbhndladhkacekfhemi
       Adds the file 000003.log"="6/5/2019 9:20 AM, 409 bytes, A
       Adds the file CURRENT"="6/5/2019 9:19 AM, 16 bytes, A
       Adds the file LOCK"="6/5/2019 9:19 AM, 0 bytes, A
       Adds the file LOG"="6/5/2019 9:20 AM, 183 bytes, A
       Adds the file MANIFEST-000001"="6/5/2019 9:19 AM, 41 bytes, A

Registry details [View: All details] (Selection)
------------------------------------------------
    [HKEY_CURRENT_USER\Software\Google\Chrome\PreferenceMACs\Default\extensions.settings]
       "kfnnfabidihajnbhndladhkacekfhemi"="REG_SZ", "5D9B6AD9E8021564C1FE36238959121BB7A6F8195F57154D63F7D2AAA6E0BDFB"

Malwarebytes log:

Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 6/5/19
Scan Time: 9:28 AM
Log File: 8eca1dae-8763-11e9-b04c-00ffdcc6fdfc.json

-Software Information-
Version: 3.7.1.2839
Components Version: 1.0.586
Update Package Version: 1.0.10906
License: Premium

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

-Scan Summary-
Scan Type: Threat Scan
Scan Initiated By: Manual
Result: Completed
Objects Scanned: 236296
Threats Detected: 24
Threats Quarantined: 24
Time Elapsed: 5 min, 23 sec

-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
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.PolarityTech, HKCU\SOFTWARE\GOOGLE\CHROME\PREFERENCEMACS\Default\extensions.settings|kfnnfabidihajnbhndladhkacekfhemi, Quarantined, [422], [683603],1.0.10906

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 6
PUP.Optional.PolarityTech, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Sync Extension Settings\kfnnfabidihajnbhndladhkacekfhemi, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\_metadata, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\assets, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\js, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\KFNNFABIDIHAJNBHNDLADHKACEKFHEMI, Quarantined, [422], [683603],1.0.10906

File: 17
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\kfnnfabidihajnbhndladhkacekfhemi\000003.log, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\kfnnfabidihajnbhndladhkacekfhemi\CURRENT, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\kfnnfabidihajnbhndladhkacekfhemi\LOCK, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\kfnnfabidihajnbhndladhkacekfhemi\LOG, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\kfnnfabidihajnbhndladhkacekfhemi\MANIFEST-000001, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Preferences, Replaced, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\KFNNFABIDIHAJNBHNDLADHKACEKFHEMI\1.0.3_0\MANIFEST.JSON, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\assets\128-logo.png, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\assets\16-logo.png, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\assets\48-logo.png, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\assets\logo.png, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\js\background.js, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\js\p.js, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\_metadata\computed_hashes.json, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\_metadata\verified_contents.json, Quarantined, [422], [683603],1.0.10906
PUP.Optional.PolarityTech, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kfnnfabidihajnbhndladhkacekfhemi\1.0.3_0\popup.html, Quarantined, [422], [683603],1.0.10906

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.