How to protect yourself from Petya malware
A new strain of malware is spreading. Here is how to protect your computer.
What is Petya
How to protect against it
There are two ways the exploit attacks a computer. The exploit attacks Windows service Message block (SMB) service, a communication protocol for sharing printers and files across all networks. Microsoft had addressed this issue in the patch (MS17-010) released in March, earlier this year. The new Petra variant can also spread using a version Microsoft Excel tool together with admin credentials from the target computer as seen in wanna Cry.
These problems have already been dealt with, but some haven’t downloaded the patch yet, so it keeps spreading. Your first line of defence is to be sure you have the latest version of Windows: If you have automatic updates turned on, you’re safe. The update should already be installed to your computer.
If you don’t have auto update on, you can download the security update here:
- Windows 8 x86
- Windows 8 x64
- Windows XP SP2 x64
- Windows XP SP3 x86
- Windows XP Embedded SP3 x86
- Windows Server 2003 SP2 x64
- Windows Server 2003 SP2 x86
Windows has a download page for all versions available here.
Next, make sure that your antivirus software is up to date. Most antivirus companies already have patches out that block Petya and this new version of it.