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Removal instructions for Codeforces Sample Case Tester

- - - - - case-te.com

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#1
Metallica

Metallica

    Spyware Veteran

  • GeekU Moderator
  • 32,371 posts
Content is republished with permission from Malwarebytes.

What is Codeforces Sample Case Tester?

The Malwarebytes research team has determined that Codeforces Sample Case Tester is a forced extension.

How do I know if my computer is affected by Codeforces Sample Case Tester?

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

warning5.png

and these warnings during install:

warning1.png

warning3.png

warning4.png

How did Codeforces Sample Case Tester get on my computer?

Browser hijackers use different methods for distributing themselves. This particular one was a forced Chrome extension, but was also available in the webstore and on their website.

store.png

website.png

How do I remove Codeforces Sample Case Tester?

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 Codeforces Sample Case Tester?
  • No, Malwarebytes removes Codeforces Sample Case Tester completely.
  • You may have to remove the Chrome Extension manually under Tools > More Tools > Extensions. Click on the bin behind the Codeforces Sample Case Tester 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 try to protect our customers from forced Extension by blocking the sites that spread them.

Technical details for experts

Possible signs in FRST logs:

 CHR Extension: (Codeforces Sample Case Tester) - C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa [2017-08-02]
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\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0
       Adds the file manifest.json"="8/2/2017 8:35 AM, 2287 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\_locales\en
       Adds the file messages.json"="8/2/2017 8:35 AM, 304 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\_locales\ru
       Adds the file messages.json"="8/2/2017 8:35 AM, 402 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\_metadata
       Adds the file computed_hashes.json"="8/2/2017 8:35 AM, 10912 bytes, A
       Adds the file verified_contents.json"="7/25/2017 3:43 PM, 5031 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\lib
       Adds the file codemirror.css"="1/28/2017 9:08 AM, 8473 bytes, A
       Adds the file codemirror.js"="1/28/2017 9:08 AM, 357446 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\mode\clike
       Adds the file clike.js"="1/28/2017 9:08 AM, 31507 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\mode\perl
       Adds the file perl.js"="1/28/2017 9:08 AM, 56972 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\mode\python
       Adds the file python.js"="1/28/2017 9:08 AM, 12801 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\mode\ruby
       Adds the file ruby.js"="1/28/2017 9:08 AM, 10753 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\css
       Adds the file filter.css"="2/26/2017 7:45 AM, 70 bytes, A
       Adds the file main.css"="2/26/2017 7:45 AM, 2269 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\html
       Adds the file popup.html"="1/28/2017 9:08 AM, 153 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\icons
       Adds the file icon128.png"="8/2/2017 8:35 AM, 17190 bytes, A
       Adds the file icon16.png"="8/2/2017 8:35 AM, 824 bytes, A
       Adds the file icon19.png"="8/2/2017 8:35 AM, 1104 bytes, A
       Adds the file icon38.png"="8/2/2017 8:35 AM, 2769 bytes, A
       Adds the file icon48.png"="8/2/2017 8:35 AM, 3826 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\js
       Adds the file background.js"="2/26/2017 7:48 AM, 150 bytes, A
       Adds the file contest.js"="2/26/2017 7:48 AM, 534 bytes, A
       Adds the file contestSubmit.js"="2/26/2017 7:48 AM, 909 bytes, A
       Adds the file filter.js"="2/26/2017 7:48 AM, 585 bytes, A
       Adds the file jquery.js"="1/28/2017 9:08 AM, 95790 bytes, A
       Adds the file jquery.min.js"="7/25/2017 6:40 PM, 98018 bytes, A
       Adds the file main.js"="2/26/2017 7:49 AM, 1293 bytes, A
       Adds the file mustache.js"="1/28/2017 9:08 AM, 9513 bytes, A
       Adds the file problemset.js"="2/26/2017 7:49 AM, 533 bytes, A
       Adds the file problemsetSubmit.js"="2/26/2017 7:49 AM, 881 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\mst
       Adds the file codebox.mst"="2/26/2017 7:40 AM, 7026 bytes, A
       Adds the file failedInputs.mst"="1/28/2017 9:08 AM, 704 bytes, A
       Adds the file filter.mst"="1/30/2017 9:51 AM, 166 bytes, A
    Adds the folder C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\ilnjblokkbenjipjlodjlgecgglecppa
       Adds the file 000003.log"="8/2/2017 8:35 AM, 0 bytes, A
       Adds the file CURRENT"="8/2/2017 8:35 AM, 16 bytes, A
       Adds the file LOCK"="8/2/2017 8:35 AM, 0 bytes, A
       Adds the file LOG"="8/2/2017 8:35 AM, 0 bytes, A
       Adds the file MANIFEST-000001"="8/2/2017 8:35 AM, 41 bytes, A

Malwarebytes log:

Malwarebytes
www.malwarebytes.com

-Log Details-
Scan Date: 8/2/17
Scan Time: 9:57 AM
Log File: mbamCaseTester.txt
Administrator: Yes

-Software Information-
Version: 3.1.2.1733
Components Version: 1.0.160
Update Package Version: 1.0.2488
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: 320221
Threats Detected: 50
Threats Quarantined: 50
Time Elapsed: 1 min, 26 sec

-Scan Options-
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Disabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled

-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: 18
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\mode\python, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\mode\clike, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\mode\perl, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\mode\ruby, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\mode, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\lib, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\_locales\en, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\_locales\ru, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\_metadata, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\_locales, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\icons, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\html, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\css, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\mst, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\USERS\{username}\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\EXTENSIONS\ILNJBLOKKBENJIPJLODJLGECGGLECPPA, Quarantined, [1097], [422112],1.0.2488

File: 32
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\lib\codemirror.css, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\lib\codemirror.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\mode\clike\clike.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\mode\perl\perl.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\mode\python\python.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\codemirror\mode\ruby\ruby.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\css\filter.css, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\css\main.css, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\html\popup.html, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\icons\icon128.png, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\icons\icon16.png, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\icons\icon19.png, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\icons\icon38.png, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\icons\icon48.png, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\js\background.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\js\contest.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\js\contestSubmit.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\js\filter.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\js\jquery.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\js\jquery.min.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\js\main.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\js\mustache.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\js\problemset.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\js\problemsetSubmit.js, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\mst\codebox.mst, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\mst\failedInputs.mst, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\mst\filter.mst, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\_locales\en\messages.json, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\_locales\ru\messages.json, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\_metadata\computed_hashes.json, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\_metadata\verified_contents.json, Quarantined, [1097], [422112],1.0.2488
Rogue.ForcedExtension, C:\Users\{username}\AppData\Local\Google\Chrome\User Data\Default\Extensions\ilnjblokkbenjipjlodjlgecgglecppa\0.7_0\manifest.json, Quarantined, [1097], [422112],1.0.2488

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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