Some types of malware will target Malwarebytes and prevent it from updating itself which can result in various error codes.
If malware is blocking you from updating, then manually download the database definitions from one of the following locations (they may not be the most current as manual updates are behind in version level compared to updates from within the program
) and just double-click on mbam-rules.exe
If necessary download mbam-rules.exe from another computer, save to a USB stick or CD, transfer it to the infected machine and then install.
Note: Malwarebytes Anti-Malware database definitions file (mbam-rules.exe]) is not
updated daily. Another way to get the most current definitions if you're having problems updating through the program's interface or have already manually downloaded the latest definitions, is to do the following:
Install MBAM on a clean computer, launch the program and update through MBAM's interface. Copy this definitions file (rules.ref
) to a USB stick or CD and transfer that file to the infected machine. Copy rules.ref to the location indicated for your operating system. If you cannot see the folder, then you may have to Reconfigure Windows
to show it.
- XP,Windows 2000, 2003: C:\Documents and Settings\All Users\Application Data\Malwarebytes\Malwarebytes' Anti-Malware
- Vista, Windows 7, 2008: C:\ProgramData\Malwarebytes\Malwarebytes' Anti-Malware