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What is AdBlock Now?

AdBlock Now is a Chrome extension that triggers our Potentially Unwanted Program (PUP) detection rules. PUPs, or Potentially Unwanted Programs, are programs that may include advertising, toolbars, and pop-ups that are unrelated to the software you downloaded. PUPs often come bundled with other software that you installed. By flagging PUPs we offer users a choice to consider whether they want to use this software.

If you would like to remove AdBlock Now, please follow the removal instructions below.

How do I know if I have AdBlock Now?

This is how the Chrome extension shows up in the list of installed extensions:


You may see this type of windows during install:



How did AdBlock Now get on my computer?

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


after a redirect from their website:


How do I remove AdBlock Now?

Our program Malwarebytes can detect and remove this PUP.

  • 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 items you are concerned about.
  • Reboot the system if prompted to complete the removal process.

Is there anything else I need to do to get rid of AdBlock Now?

  • No, Malwarebytes removes AdBlock Now completely.

What if I want to keep AdBlock Now?

Should users wish to keep this PUP and exclude it from being detected in future scans, they can add the program to the exclusions list. Here’s how to do it.

  • Open Malwarebytes for Windows.
  • Click the Detection History
  • Click the Allow List
  • To add an item to the Allow List, click Add.
  • Select the exclusion type Allow a file or folder and use the Select a folder button to select the main folder for the software that you wish to keep.
  • Repeat this for any secondary files or folder(s) that belong to the software.

If you want to allow the program to connect to the Internet, for example to fetch updates, also add an exclusion of the type Allow an application to connect to the internet and use the Browse button to select the file you wish to grant access.

As you can see below the full version of Malwarebytes, as well as Browser Guard, would have warned you about the promoting website.




Technical details for experts

You may see these entries in FRST logs:

CHR Extension: (AdBlock Now) - C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kdnhhhkoemfnieeacbcfbebmidanfjlg [2021-07-26]

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\kdnhhhkoemfnieeacbcfbebmidanfjlg\
       Adds the file 128.png"="7/26/2021 10:47 AM, 9223 bytes, A
       Adds the file background.comp.js"="7/6/2021 3:28 AM, 4292 bytes, A
       Adds the file content.js"="7/6/2021 2:56 AM, 379 bytes, A
       Adds the file manifest.json"="7/26/2021 10:47 AM, 1110 bytes, A
       Adds the file toblock.js"="7/6/2021 2:40 AM, 411487 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kdnhhhkoemfnieeacbcfbebmidanfjlg\\_locales\en
       Adds the file messages.json"="7/26/2021 10:47 AM, 157 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\kdnhhhkoemfnieeacbcfbebmidanfjlg\\_metadata
       Adds the file computed_hashes.json"="7/26/2021 10:47 AM, 5096 bytes, A
       Adds the file verified_contents.json"="7/6/2021 3:29 AM, 1869 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\kdnhhhkoemfnieeacbcfbebmidanfjlg
       Adds the file 000003.log"="7/26/2021 10:48 AM, 667 bytes, A
       Adds the file CURRENT"="7/26/2021 10:47 AM, 16 bytes, A
       Adds the file LOCK"="7/26/2021 10:47 AM, 0 bytes, A
       Adds the file LOG"="7/26/2021 10:47 AM, 369 bytes, A
       Adds the file MANIFEST-000001"="7/26/2021 10:47 AM, 41 bytes, A

Registry details [View: All details] (Selection)
       "kdnhhhkoemfnieeacbcfbebmidanfjlg"="REG_SZ", "B58C9B742CE4DE83AB12C980A74CA021058A1AE949552308443531936150A6AC"

Malwarebytes log:


-Log Details-
Scan Date: 7/26/21
Scan Time: 10:55 AM
Log File: 2cffc264-edef-11eb-82b5-080027235d76.json

-Software Information-
Components Version: 1.0.1387
Update Package Version: 1.0.43558
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: 257828
Threats Detected: 10
Threats Quarantined: 10
Time Elapsed: 1 min, 59 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.FakeExtension, HKCU\SOFTWARE\GOOGLE\CHROME\PREFERENCEMACS\Default\extensions.settings|kdnhhhkoemfnieeacbcfbebmidanfjlg, Quarantined, 2145, 960922, , , , , , 

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 2
PUP.Optional.FakeExtension, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Local Extension Settings\kdnhhhkoemfnieeacbcfbebmidanfjlg, Quarantined, 2145, 960922, , , , , , 
PUP.Optional.FakeExtension, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\EXTENSIONS\kdnhhhkoemfnieeacbcfbebmidanfjlg, Quarantined, 2145, 960922, 1.0.43558, , ame, , , 

File: 7
PUP.Optional.FakeExtension, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Secure Preferences, Replaced, 2145, 960922, , , , , 7471F56BD2C5CD076AA0996A596D2723, F245DCC58A2DB600948F5291B77DFA2EA4CE8DE7810E59F7138235369BA359FB
PUP.Optional.FakeExtension, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\Default\Preferences, Replaced, 2145, 960922, , , , , 0891B88C610421F5BC1C98B838C11980, 104FFDD95A1FC949966AB4C3326AFB1B972822B64C9B076F1D248BFE8E581603
PUP.Optional.FakeExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\kdnhhhkoemfnieeacbcfbebmidanfjlg\000003.log, Quarantined, 2145, 960922, , , , , CD65D0A204EF9105CC47E00DEA223C26, 7DC8E5A2C902EEE87D5604B116858F0878F7552F912141017CA70C2C84B5B677
PUP.Optional.FakeExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\kdnhhhkoemfnieeacbcfbebmidanfjlg\CURRENT, Quarantined, 2145, 960922, , , , , 46295CAC801E5D4857D09837238A6394, 0F1BAD70C7BD1E0A69562853EC529355462FCD0423263A3D39D6D0D70B780443
PUP.Optional.FakeExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\kdnhhhkoemfnieeacbcfbebmidanfjlg\LOCK, Quarantined, 2145, 960922, , , , , , 
PUP.Optional.FakeExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\kdnhhhkoemfnieeacbcfbebmidanfjlg\LOG, Quarantined, 2145, 960922, , , , , A6F0B160DD50BC5E37E12359D92E6857, 6BDDEFE6D6FDEFE18DE5160807695BD44D41697DA8E85DD168550D428E7E1080
PUP.Optional.FakeExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\kdnhhhkoemfnieeacbcfbebmidanfjlg\MANIFEST-000001, Quarantined, 2145, 960922, , , , , 5AF87DFD673BA2115E2FCF5CFDB727AB, F9D31B278E215EB0D0E9CD709EDFA037E828F36214AB7906F612160FEAD4B2B4

Physical Sector: 0
(No malicious items detected)

WMI: 0
(No malicious items detected)


As mentioned before the full version of Malwarebytes would have warned you about this PUP.
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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