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Christian Mairoll

GreatDefender Adware Removal Instructions

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The Emsi Software malware research team has discoverd a new outbreak of the GreatDefender adware. a-squared Anti-Malware detects this malware as Adware.Win32.GreatDefender.

GreatDefender, come from hxxp://, is a rogue scanner program, it shows a fake security center window, shows misleading scan results and fake security alerts. The author of GreatDefender also made APCProtect, ProtectPcs, SysDefence, TheDefend, GuardPcs, IGuardPc, SiteAdware, AntiTroy, AntiKeep, AntiAdd, RESpyWare, REAnti, KeepCop, SecureKeeper, LinkSafeness, AntiAid, SystemFighter, SystemVeteran, BlockProtector, BlockKeeper, BlockScanner, BlockWatcher, SoftStronghold, ShieldSafeness, SoftVeteran, SoftSoldierSoftCop, TrustFighter, TrustSoldier, SafeFighter, SecureVeteran, etc. To further convince victims, GreatDefender will also create numerous junk files with random names on your computer that will be detected as malware when the program scans your computer, but will not allow you to remove them until you purchase it.

Create new files and directories:

  • %ProgramFiles%GreatDefender SoftwareGreatDefenderGreatDefender.exe
  • %ProgramFiles%GreatDefender SoftwareGreatDefendermain_config.xml
  • %ProgramFiles%GreatDefender SoftwareGreatDefenderuninstall.exe
  • %AllUsersProfiles%DesktopGreatDefender.lnk
  • %AllUsersProfiles%Start MenuProgramsGreatDefender2 Homepage.lnk
  • %AllUsersProfiles%Start MenuProgramsGreatDefender3 Uninstall.lnk
  • %AllUsersProfiles%Start MenuProgramsGreatDefender1 GreatDefender.lnk
  • %UserProfile%[email protected][1].txt

Create new registry entries:

  • HKEY_LOCAL_MACHINEsoftwareGreatDefender
  • HKEY_LOCAL_MACHINEsoftwaremicrosoftWindowsCurrentVersionUninstallGreatDefender
  • HKEY_CURRENT_USERsoftwareGreatDefender
  • HKEY_LOCAL_MACHINEsoftwaremicrosoftWindowsCurrentVersionRun, “GreatDefender”
  • HKEY_CURRENT_USERsoftwareMicrosoftWindowsCurrentVersionRun, “GreatDefender”











How to remove the infection of GreatDefender (Adware.Win32.GreatDefender)?

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

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