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Removal instructions for Boan Killer

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Content is republished with permission from Malwarebytes.

What is Boan Killer?

The Malwarebytes research team has determined that Boan Killer 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 Boan Killer?

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

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You will find this icon in your taskbar:

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And see these warnings:

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How did Boan Killer get on my computer?

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

How do I remove Boan Killer?

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 Boan Killer?

  • No, Malwarebytes Anti-Malware removes Boan Killer 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 Boan Killer 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\boankiller\boankiller.exe

O23 - Service: boankiller SERVICE (boankiller SVC) - Unknown owner - C:\Documents and Settings\{username}\Application Data\boankiller\boankillersvc.exe

Alterations made by the installer:

  File System
    Adds the folder C:\Documents and Settings\{username}\Application Data\boankiller
      Adds the file boankillersvc.exe"="04:07 12/06/12 20480 bytes
      Adds the file boankillercnt.exe"="05:20 12/06/12 16384 bytes
    Adds the folder C:\Documents and Settings\{username}\Start Menu\Programs\����ų��
      Adds the file ����ų��.lnk"="07:42 29/08/12 718 bytes
    Adds the folder C:\Program Files\boankiller
      Adds the file uninst.exe"="07:42 29/08/12 147072 bytes
      Adds the file prv.dat"="07:42 29/08/12 170 bytes
      Adds the file boankillermon.exe"="05:17 12/06/12 90112 bytes
      Adds the file boankiller.exe"="05:14 12/06/12 1695744 bytes
      Adds the file boankiller.dll"="05:07 02/05/12 69632 bytes

    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\boankillersvc.exe]
      "(Default)"="'C:\Documents and Settings\{username}\Application Data\boankiller\boankillersvc.exe'"
      "DisplayIcon"="'C:\Documents and Settings\{username}\Application Data\boankiller\boankillersvc.exe'"
      "UninstallString"="'C:\Program Files\boankiller\uninst.exe'"
      "DisplayName"="'boankiller '"
      "DeviceDesc"="'boankiller SERVICE'"
      "Service"="'boankiller SVC'"
      "ActiveService"="'boankiller SVC'"
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\boankiller SVC]
      "DisplayName"="'boankiller SERVICE'"
      "ImagePath"="C:\Documents and Settings\{username}\Application Data\boankiller\boankillersvc.exe."
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\boankiller SVC\Enum]
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\boankiller SVC\Security]
      "Security"="................0.................................`......................................... ... "

Malwarebytes Anti-Malware log:
Malwarebytes Anti-Malware

Database version: v2012.08.29.03

Windows XP Service Pack 3 x86 NTFS
Internet Explorer 8.0.6001.18702
{username} :: MBAM-D3E8C91ACC [administrator]

8/29/2012 7:45:52 AM
mbam-log-2012-08-29 (07-45-52).txt

Scan type: Quick scan
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 169777
Time elapsed: 47 second(s)

Memory Processes Detected: 1
C:\Program Files\boankiller\boankiller.exe (Rogue.BoanKiller) -> 2020 -> Delete on reboot.

Memory Modules Detected: 1
C:\Program Files\boankiller\boankiller.dll (Rogue.BoanKiller) -> Delete on reboot.

Registry Keys Detected: 4
HKLM\SYSTEM\CurrentControlSet\Services\boankiller SVC (Rogue.BoanKiller) -> Quarantined and deleted successfully.
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\boankiller (Rogue.BoanKiller) -> Quarantined and deleted successfully.
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\boankillersvc.exe (Rogue.BoanKiller) -> Quarantined and deleted successfully.
HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_BOANKILLER_SVC (Rogue.BoanKiller) -> Quarantined and deleted successfully.

Registry Values Detected: 1
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\boankiller|URLInfoAbout (Rogue.BoanKiller) -> Data: http://www.boankiller.com -> Quarantined and deleted successfully.

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 2
C:\Program Files\boankiller (Rogue.BoanKiller) -> Delete on reboot.
C:\Documents and Settings\{username}\Application Data\boankiller (Rogue.BoanKiller) -> Quarantined and deleted successfully.

Files Detected: 7
C:\Program Files\boankiller\boankiller.exe (Rogue.BoanKiller) -> Delete on reboot.
C:\Documents and Settings\{username}\Application Data\boankiller\boankillersvc.exe (Rogue.BoanKiller) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Application Data\boankiller\boankillercnt.exe (Adware.Kraddare) -> Quarantined and deleted successfully.
C:\Program Files\boankiller\prv.dat (Rogue.BoanKiller) -> Quarantined and deleted successfully.
C:\Program Files\boankiller\boankiller.dll (Rogue.BoanKiller) -> Delete on reboot.
C:\Program Files\boankiller\boankillermon.exe (Rogue.BoanKiller) -> Quarantined and deleted successfully.
C:\Program Files\boankiller\uninst.exe (Rogue.BoanKiller) -> 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.
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