Removal instructions for VirusKorea

Content is republished with permission from Malwarebytes.

What is VirusKorea?

The Malwarebytes research team has determined that VirusKorea is a fake anti-malware application. These so-called "rogues" use intentional false positives to convince users that their systems have been compromised. Then they try to sell you their software, claiming it will remove these threats. In extreme cases the false threats are actually the very trojans that advertise or even directly install the rogue. You are strongly advised to follow our removal instructions below.

How do I know if I am infected with VirusKorea?

This is how the main screen of the rogue application looks:

Posted Image

You will find this icon in your taskbar:

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How did VirusKorea get on my computer?

Rogue programs use different methods for spreading themselves. This particular one was downloaded from their site.

How do I remove VirusKorea?

Our program Malwarebytes' Anti-Malware can detect and remove this rogue application.

Please download Malwarebytes' Anti-Malware to your desktop.
Double-click mbam-setup.exe and follow the prompts to install the program.
At the end, be sure a check-mark is placed next to the following:
- Update Malwarebytes' Anti-Malware
- Launch Malwarebytes' Anti-Malware
Then click Finish.
If an update is found, it will download and install the latest version.
Once the program has loaded, select Perform quick scan, then click Scan.
When the scan is complete, click OK, then Show Results to view the results.
Be sure that everything is checked, and click Remove Selected. Reboot your computer if prompted.
When completed, a log will open in Notepad. The rogue application should now be gone.

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

No, Malwarebytes' Anti-Malware removes VirusKorea completely.

How would the full version of Malwarebytes' Anti-Malware help protect me?

We hope our application has helped you eradicate this malicious software. If your current security solution let this infection through, you might please consider purchasing the FULL version of Malwarebytes' Anti-Malware for additional protection.

As you can see below the full version of Malwarebytes' Anti-Malware would have protected you against the VirusKorea rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.

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Technical details for experts

Signs in a HijackThis log:

C:\Program Files\NVirusKorea\VirusKorea.exe

O4 - HKCU\..\Run: [NVirusKorea] "C:\Program Files\NVirusKorea\VirusKoreaLaunch.exe" /boot

Alterations made by the installer:


  File System
  ===============
    Adds the folder C:\Documents and Settings\{username}\Start Menu\Programs\NVirusKorea
      Adds the file Ȩ������.lnk"="13:03 30/10/11 1556 bytes
      Adds the file VirusKorea.lnk"="13:03 30/10/11 519 bytes
    Adds the folder C:\Program Files\NVirusKorea
      Adds the file VirusKoreaUp.exe"="06:04 11/10/11 327680 bytes
      Adds the file VirusKoreaLaunch.exe"="07:20 18/08/11 194048 bytes
      Adds the file VirusKorea.exe"="08:04 29/09/11 4295680 bytes
      Adds the file updated_reg.dat.enc.dec"="13:05 30/10/11 495178 bytes
      Adds the file updated_reg.dat.enc"="22:30 29/06/11 495178 bytes
      Adds the file updated_name.dat.enc.dec"="13:05 30/10/11 371370 bytes
      Adds the file updated_name.dat.enc"="22:30 29/06/11 371370 bytes
      Adds the file uninst.exe"="13:03 30/10/11 62246 bytes
      Adds the file rv01du.exe"="14:16 04/01/11 185344 bytes
      Adds the file rv01.scanlist.dat"="13:05 30/10/11 58 bytes
      Adds the file rv01.scanlist.basic.dat"="13:05 30/10/11 58 bytes
      Adds the file rv01.includee.dat"="05:56 03/01/11 10 bytes
      Adds the file rv01.exe"="21:33 04/07/11 154624 bytes
      Adds the file rv01.excluden.dat"="13:06 30/10/11 0 bytes
      Adds the file rv01.excludef.dat"="13:06 30/10/11 0 bytes
      Adds the file rv01.excludee.dat"="13:06 30/10/11 444 bytes
      Adds the file rv01.excluded.dat"="13:06 30/10/11 1045 bytes
      Adds the file rv01.dll"="13:28 04/01/11 4791296 bytes
      Adds the file NVirusKorea.url"="13:03 30/10/11 47 bytes
    Adds the folder C:\Program Files\NVirusKorea\Quarantine
    Adds the folder C:\Program Files\NVirusKorea\db
    Adds the folder C:\Program Files\NVirusKorea\Log
    Adds the folder C:\Program Files\NVirusKorea\Log\10
    Adds the folder C:\Program Files\NVirusKorea\Log\10\30
    Adds the folder C:\Program Files\NVirusKorea\Log\10\30\2011-1
      Adds the file virus.xml"="13:06 30/10/11 41 bytes
      Adds the file file.xml"="13:05 30/10/11 41 bytes
      Adds the file badcode.xml"="13:06 30/10/11 41 bytes
    In the existing folder C:\WINDOWS\system32
      Adds the file msjava.dll"="02:13 05/03/10 947472 bytes

  Registry
  ===============
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\VirusKoreaUp.exe]
      "(Default)"="'C:\Program Files\NVirusKorea\VirusKoreaUp.exe'"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NVirusKorea]
      "Publisher"="'VirusKorea'"
      "URLInfoAbout"="'http://viruskorea.com'"
      "DisplayVersion"="'1.0'"
      "DisplayIcon"="'C:\Program Files\NVirusKorea\VirusKoreaUp.exe'"
      "UninstallString"="'C:\Program Files\NVirusKorea\uninst.exe'"
      "DisplayName"="'NVirusKorea 1.0'"
    [HKEY_CURRENT_USER\Software\NVirusKorea]
      "lastinspect"="'2011-10-30'"
      "runned"="1"
      "countdate"="'2011-10-30'"
      "ud"=""
      "partner"="'VirusKorea'"
      "inspect_garbage"="1"
      "inspect_registry"="1"
      "quarantine_on_registry"="1"
      "quarantine_on_virus"="1"
      "brokenasvirus"="0"
      "email"="1"
      "compressedfile"="1"
      "urlphishing"="1"
      "autoalert"="0"
      "cpuuse"="1"
      "autocure"="1"
      "autorun"="1"
      "autodelquarantines"="3"
      "autodellogs"="3"
      "instdir"="'C:\Program Files\NVirusKorea'"
    [HKEY_CURRENT_USER\Software\NVirusKorea\files]
      "rv01.exe"="'1.1'"
      "VirusKorea.exe"="'1.3'"
      "VirusKoreaUp.exe"="'1.1'"
      "VirusKoreaLaunch.exe"="'1.0'"
    [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
      "NVirusKorea"="'C:\Program Files\NVirusKorea\VirusKoreaLaunch.exe'"

Malwarebytes' Anti-Malware log:

Malwarebytes' Anti-Malware 1.51.2.1300
www.malwarebytes.org

Database version: 8046

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

10/30/2011 1:12:42 PM
mbam-log-2011-10-30 (13-12-42).txt

Scan type: Quick scan
Objects scanned: 143036
Time elapsed: 1 minute(s), 1 second(s)

Memory Processes Infected: 1
Memory Modules Infected: 0
Registry Keys Infected: 3
Registry Values Infected: 1
Registry Data Items Infected: 0
Folders Infected: 8
Files Infected: 25

Memory Processes Infected:
c:\program files\nviruskorea\viruskorea.exe (Rogue.VirusKorea) -> 1452 -> Unloaded process successfully.

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NVirusKorea (Rogue.VirusKorea) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\Software\NVirusKorea (Rogue.VirusKorea) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\VirusKoreaUp.exe (Rogue.VirusKorea) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NVirusKorea (Rogue.VirusKorea) -> Value: NVirusKorea -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
c:\program files\nviruskorea (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\db (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\Log (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\Log\10 (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\Log\10\30 (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\Log\10\30\2011-1 (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\quarantine (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\start menu\Programs\nviruskorea (Rogue.VirusKorea) -> Quarantined and deleted successfully.

Files Infected:
c:\program files\nviruskorea\viruskorea.exe (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\viruskorealaunch.exe (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\Desktop\viruskoreasetup.exe (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\nviruskorea.url (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\rv01.dll (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\rv01.excluded.dat (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\rv01.excludee.dat (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\rv01.excludef.dat (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\rv01.excluden.dat (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\rv01.exe (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\rv01.includee.dat (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\rv01.scanlist.basic.dat (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\rv01.scanlist.dat (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\rv01du.exe (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\uninst.exe (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\updated_name.dat.enc (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\updated_name.dat.enc.dec (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\updated_reg.dat.enc (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\updated_reg.dat.enc.dec (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\viruskoreaup.exe (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\Log\10\30\2011-1\badcode.xml (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\Log\10\30\2011-1\file.xml (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\program files\nviruskorea\Log\10\30\2011-1\virus.xml (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\start menu\Programs\nviruskorea\viruskorea.lnk (Rogue.VirusKorea) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\start menu\Programs\nviruskorea\Ȩ������.lnk (Rogue.VirusKorea) -> Quarantined and deleted successfully.

As mentioned before the full version of Malwarebytes' Anti-Malware 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.

#1
Metallica

Posted 30 October 2011 - 06:37 AM

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