W32.Mobler.B is a worm that copies itself to local drives and disables the Registry Editor on the compromised computer.
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionPoliciesExplorerHKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerAdvancedHKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesSystemHKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionPoliciesExplorer