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Removal instructions for Derey

- - - - - forced Chrome extension

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Metallica

Metallica

    Spyware Veteran

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Content is republished with permission from Malwarebytes.

What is Derey?

The Malwarebytes research team has determined that Derey is a forced extension.

How do I know if my computer is affected by Derey?

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

main.png

and these warnings during install:

warning1.png

warning2.png

warning3.png

How did Derey get on my computer?

Browser hijackers use different methods for distributing themselves. This particular one was a forced Chrome extension.
But it was also available in the webstore at the time of writing.

store.png

How do I remove Derey?

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 Derey?
  • No, Malwarebytes removes Derey completely.
  • You may have to remove the Chrome Extension manually under Tools > More Tools > Extensions. Click on the bin behind the Derey entry and confirm Remove in the prompt.
How would the full version of Malwarebytes help protect me?

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

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

protection2.png

Technical details for experts

Possible signs in FRST logs:

 CHR Extension: (Derey) - C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\eghdmifgjdoojlnpfflnpoeiebapknda [2017-09-14]
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\eghdmifgjdoojlnpfflnpoeiebapknda\1.21.2_0
       Adds the file background.js"="9/6/2017 3:23 PM, 70332 bytes, A
       Adds the file derey.png"="9/14/2017 12:21 PM, 535 bytes, A
       Adds the file manifest.json"="9/14/2017 12:21 PM, 953 bytes, A
       Adds the file popup.html"="9/6/2017 3:23 PM, 184 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\eghdmifgjdoojlnpfflnpoeiebapknda\1.21.2_0\_metadata
       Adds the file computed_hashes.json"="9/14/2017 12:21 PM, 1142 bytes, A
       Adds the file verified_contents.json"="9/6/2017 3:23 PM, 1631 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Sync Extension Settings\eghdmifgjdoojlnpfflnpoeiebapknda
       Adds the file 000003.log"="9/14/2017 12:21 PM, 0 bytes, A
       Adds the file CURRENT"="9/14/2017 12:21 PM, 16 bytes, A
       Adds the file LOCK"="9/14/2017 12:21 PM, 0 bytes, A
       Adds the file LOG"="9/14/2017 12:21 PM, 0 bytes, A
       Adds the file MANIFEST-000001"="9/14/2017 12:21 PM, 41 bytes, A
Malwarebytes log:

Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 9/14/17
Scan Time: 4:59 PM
Log File: 49eaec5e-995d-11e7-92a6-080027750297.json
Administrator: Yes

-Software Information-
Version: 3.2.2.2018
Components Version: 1.0.188
Update Package Version: 1.0.2804
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: 319223
Threats Detected: 9
Threats Quarantined: 9
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: 0
(No malicious items detected)

Registry Data: 0
(No malicious items detected)

Data Stream: 0
(No malicious items detected)

Folder: 3
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\eghdmifgjdoojlnpfflnpoeiebapknda\1.21.2_0\_metadata, Quarantined, [622], [434837],1.0.2804
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\eghdmifgjdoojlnpfflnpoeiebapknda\1.21.2_0, Quarantined, [622], [434837],1.0.2804
Rogue.ForcedExtension, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\EGHDMIFGJDOOJLNPFFLNPOEIEBAPKNDA, Quarantined, [622], [434837],1.0.2804

File: 6
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\eghdmifgjdoojlnpfflnpoeiebapknda\1.21.2_0\_metadata\computed_hashes.json, Quarantined, [622], [434837],1.0.2804
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\eghdmifgjdoojlnpfflnpoeiebapknda\1.21.2_0\_metadata\verified_contents.json, Quarantined, [622], [434837],1.0.2804
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\eghdmifgjdoojlnpfflnpoeiebapknda\1.21.2_0\background.js, Quarantined, [622], [434837],1.0.2804
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\eghdmifgjdoojlnpfflnpoeiebapknda\1.21.2_0\derey.png, Quarantined, [622], [434837],1.0.2804
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\eghdmifgjdoojlnpfflnpoeiebapknda\1.21.2_0\manifest.json, Quarantined, [622], [434837],1.0.2804
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\eghdmifgjdoojlnpfflnpoeiebapknda\1.21.2_0\popup.html, Quarantined, [622], [434837],1.0.2804

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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