It then restarts the ' beep' service, which loads the modified driver ' beep.sys'. It retrieves the location of ' beep.sys' in the system drivers directory, and replaces it with its own driver. The malware checks if the service called ' beep' is running, then if found, stops it. Once installed, it loads the driver by creating ' \\\\.\\MyDeviceDriver' and drops ' flash.dll', which is responsible for loading the ' bios.sys' service. The malware also creates a ROM BIOS file as a randomly named file in the Windows temporary files folder, such as ' ~dfe0f5.tmp'. The default installation location for the System folder for Windows 2000 and NT is C:\Winnt\System32 and for XP, Vista, and 7 is C:\Windows\System32. Note: refers to a variable location that is determined by the malware by querying the Operating System.
%TEMP%\~dfe0f5.tmp - detected as Trojan:WinNT/Wador.A.\my.sys - detected as Trojan:WinNT/Diskhide.A.\drivers\bios.sys - detected as Trojan:WinNT/Wador.A ].TrojanDropper:Win32/Wador.A may install the following files as part of its installation process: TrojanDropper:Win32/Wador.A is a trojan that drops and installs other malware, and has been observed dropping Trojan:WinNT/Wador.A and Trojan:WinNT/Diskhide.A. You may also refer BIOS: frequently asked questions ( ) for more information. If you think you need to update your BIOS, check the information that came with your computer or go to the computer manufacturer’s website. įurthermore, this threat may affect Award BIOS. When the MBR has been successfully restored, run a full-system scan with an up-to-date antivirus product such as the Microsoft Safety Scanner ( ). How to use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues in Windows Vista (Use the /FixMbr option).Description of the Windows XP Recovery Console(Use the ' fixmbr' command).Please see the following articles for further details on using the Windows Recovery Console: This can be accomplished by using the Windows Recovery Console. If you suspect that your system has been affected with this malware, you may need to write a known-good copy of the Master Boot Record back to the disk to prevent the malware's driver from being loaded on the next reboot. The following Microsoft products detect and remove this threat:įor more information on antivirus software, see. To detect and remove this threat and other malicious software that may be installed on your computer, run a full-system scan with an appropriate, up-to-date, security solution.
0 kommentar(er)
