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What is AD&POP Block?

The Malwarebytes research team has determined that AD&POP Block is an ad-replacer and forced Chrome extension.

How do I know if my computer is affected by AD&POP Block?

You may see these warnings during install:



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


How did AD&POP Block get on my computer?
Forced extensions use a typical method for distributing themselves. This particular one was downloaded from the webstore.


after a redirect from their website:


How do I remove AD&POP Block?

Our program Malwarebytes can detect and remove this unwanted program.

  • 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 AD&POP Block?

  • No, Malwarebytes removes AD&POP Block 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:



Technical details for experts

Possible signs in FRST logs:

CHR Extension: (AD&POP Block) - C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\mknlngfeicgfpljigaaeohppjdiaalid [2021-01-28]

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\mknlngfeicgfpljigaaeohppjdiaalid\
       Adds the file 128.png"="1/28/2021 9:07 AM, 6037 bytes, A
       Adds the file 48.png"="1/28/2021 9:07 AM, 2392 bytes, A
       Adds the file background.html"="1/9/2021 9:23 AM, 256 bytes, A
       Adds the file background.js"="1/14/2021 11:32 PM, 7016 bytes, A
       Adds the file blocked_domains.js"="1/18/2021 4:47 AM, 1732098 bytes, A
       Adds the file manifest.json"="1/28/2021 9:07 AM, 1053 bytes, A
       Adds the file popup.html"="1/12/2021 3:06 AM, 1497 bytes, A
       Adds the file popup.js"="1/12/2021 3:06 AM, 411 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\mknlngfeicgfpljigaaeohppjdiaalid\\_metadata
       Adds the file computed_hashes.json"="1/28/2021 9:07 AM, 24118 bytes, A
       Adds the file verified_contents.json"="1/18/2021 3:25 AM, 2668 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\mknlngfeicgfpljigaaeohppjdiaalid\\skin
       Adds the file bootstrap.css"="1/7/2021 11:28 PM, 159515 bytes, A
       Adds the file common.css"="1/7/2021 11:28 PM, 1589 bytes, A
       Adds the file popup.css"="1/8/2021 4:03 AM, 6562 bytes, A
       Adds the file TitilliumWeb-Bold.ttf"="1/7/2021 11:28 PM, 53896 bytes, A
       Adds the file TitilliumWeb-Regular.ttf"="1/7/2021 11:28 PM, 57392 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\mknlngfeicgfpljigaaeohppjdiaalid
       Adds the file 000003.log"="1/28/2021 9:07 AM, 548 bytes, A
       Adds the file CURRENT"="1/28/2021 9:07 AM, 16 bytes, A
       Adds the file LOCK"="1/28/2021 9:07 AM, 0 bytes, A
       Adds the file LOG"="1/28/2021 9:07 AM, 0 bytes, A
       Adds the file LOG.old"="1/28/2021 9:07 AM, 184 bytes, A
       Adds the file MANIFEST-000001"="1/28/2021 9:07 AM, 41 bytes, A

Registry details [View: All details] (Selection)
       "mknlngfeicgfpljigaaeohppjdiaalid"="REG_SZ", "0BBC33816B7309658E14D982BD66913B04C9225957A668079FCF9664A4C96256"

Malwarebytes log:


-Log Details-
Scan Date: 1/28/21
Scan Time: 9:17 AM
Log File: 42db94e0-6141-11eb-9d4f-080027235d76.json

-Software Information-
Components Version: 1.0.1146
Update Package Version: 1.0.36335
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: 232965
Threats Detected: 12
Threats Quarantined: 12
Time Elapsed: 3 min, 53 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
Rogue.ForcedExtension, HKCU\SOFTWARE\GOOGLE\CHROME\PREFERENCEMACS\Default\extensions.settings|mknlngfeicgfpljigaaeohppjdiaalid, Quarantined, 8121, 447164, , , , , , 

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 2
Rogue.ForcedExtension, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Local Extension Settings\mknlngfeicgfpljigaaeohppjdiaalid, Quarantined, 8121, 447164, , , , , , 
Rogue.ForcedExtension, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\MKNLNGFEICGFPLJIGAAEOHPPJDIAALID, Quarantined, 8121, 447164, 1.0.36335, , ame, , , 

File: 9
Rogue.ForcedExtension, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, 8121, 447164, , , , , C88C8C1BE2EF016CB7CB140053528E3F, C1A3BF56A7DAFA228D420C77DD9E7CEA59DA2EA66EA736913BEC3D364025FBFB
Rogue.ForcedExtension, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Preferences, Replaced, 8121, 447164, , , , , B2A48D92A63EB24299355BA1900A4A43, 76B513E9662F4EABF9C11F348748FB5265D2177206E197996F8F6AF4049B6F63
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\mknlngfeicgfpljigaaeohppjdiaalid\000003.log, Quarantined, 8121, 447164, , , , , FFA558E5E2F2D8548308145802E1F840, 3DAC8CB8BA1AA18BDB9D775ABC5490A357CEFF2DB757C7B587E5CA3903532C5C
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\mknlngfeicgfpljigaaeohppjdiaalid\CURRENT, Quarantined, 8121, 447164, , , , , 46295CAC801E5D4857D09837238A6394, 0F1BAD70C7BD1E0A69562853EC529355462FCD0423263A3D39D6D0D70B780443
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\mknlngfeicgfpljigaaeohppjdiaalid\LOCK, Quarantined, 8121, 447164, , , , , , 
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\mknlngfeicgfpljigaaeohppjdiaalid\LOG, Quarantined, 8121, 447164, , , , , 74A4C55C966698089F3E6FF9F90740F3, A9DA0F708444DA7E063BA2246D4BDED118DFEC9DBFD26FCC1A2319C0F7E01905
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\mknlngfeicgfpljigaaeohppjdiaalid\LOG.old, Quarantined, 8121, 447164, , , , , 1583D563DF2255B5D8C5FD17F83C98B1, CDD3DD3D832571E41AA46F9AB93235E88F46E58A76D2DF89B8A0413E36DC141C
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\mknlngfeicgfpljigaaeohppjdiaalid\MANIFEST-000001, Quarantined, 8121, 447164, , , , , 5AF87DFD673BA2115E2FCF5CFDB727AB, F9D31B278E215EB0D0E9CD709EDFA037E828F36214AB7906F612160FEAD4B2B4
Rogue.ForcedExtension, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\MKNLNGFEICGFPLJIGAAEOHPPJDIAALID\\BLOCKED_DOMAINS.JS, Quarantined, 8121, 447164, 1.0.36335, , ame, , 5249CC7095F9FB3A7D4457C32D7A4D18, D2701733E112CFA0119E556913B6AA2940F4249DC7171258C59CF720358924D8

Physical Sector: 0
(No malicious items detected)

WMI: 0
(No malicious items detected)


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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