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Christian Mairoll

Disk OK Adware Removal Instructions

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The Emsisoft malware research team has discovered a new outbreak of the  Disk OK adware. Emsisoft Anti-Malware detects this malware as Adware.Win32.DiskOK.

Disk OK is a rogue application, this is another variant of My Disk, Memory Fixer, HDD Fix, Scanner, HDD Low, Disk Repair, Defragmenter, HDD Tools, Smart HDD, HDD Rescue, HDD Plus, HDD Diagnostic, Hard Drive Diagnostic, Disk Doctor, Win Defragmenter, WinDefrag, WinHDD, CheckDisk, Ultra Defragger, Quick Defragmenter, Smart Defragmenter, HDD Defragmenter, and System Defragmenter. A rogue application tries to trick you by displaying false positive/misleading scan results report, which says that your computer has a problem, or infected with viruses or trojan, but you will not be able to fix it before you purchase.

Create new files:

  • %AllUsersProfile%Application Data~%random%
  • %AllUsersProfile%Application Data~%random%r
  • %AllUsersProfile%Application Data%random%
  • %AllUsersProfile%Application Data%random%.exe
  • %AllUsersProfile%Application Data%random%.dll
  • %AllUsersProfile%Application Data%random%.exe
  • %UserProfile%DesktopDisk OK.lnk
  • %UserProfile%Local SettingsTemptmp1.tmp
  • %UserProfile%Local SettingsTemp%random%.tmp
  • %UserProfile%Start MenuProgramsDisk OK
  • %UserProfile%Start MenuProgramsDisk OKDisk OK.lnk
  • %UserProfile%Start MenuProgramsDisk OKUninstall Disk OK.lnk

Create/modify registry entries:

  • HKEY_CURRENT_USERSoftwareMicrosoftInternet ExplorerMain
    Use FormSuggest: “Yes”
  • HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesAssociations
    LowRiskFileTypes:”.zip;.rar;.nfo;.txt;.exe;.bat;.com;.cmd;.reg;.msi;.htm;.html;.gif;.bmp;.jpg;.avi;.mpg;
    .mpeg;.mov;.mp3;.m3u;.wav;.scr;”
  • HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesAttachments
    SaveZoneInformation: 0×00000001
  • HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRun
    %random%: “%AllUsersProfile%Application Data%random%.exe”
    %random%: “%AllUsersProfile%Application Data%random%.exe”
  • HKEY_CURRENT_USERSoftwareMicrosoftInternet ExplorerDownload
    CheckExeSignatures: “no”
  • HKEY_CURRENT_USERSoftwareMicrosoftInternet ExplorerMain
    Check_Associations: “no”

Screenshots:

Adware.Win32.DiskOK_1-400x269.png

Adware.Win32.DiskOK_2-400x269.png

Adware.Win32.DiskOK_3-400x269.png

Adware.Win32.DiskOK_4-400x269.png

Adware.Win32.DiskOK_5-400x261.png

Adware.Win32.DiskOK_6-400x219.png

How to remove the infection of Disk OK (Adware.Win32.DiskOK)?

To delete this malware infection, please download and install Emsisoft Anti-Malware. Run a full scan on all drives and move all detected items to the quarantine.



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