The Nimda Worm was the most widespread worm/virus on the internet in 22 minutes after it’s release. Although not seen much now, it is still around and many anti-virus companies have developed specific tools to remove the worm. Symantec, AVG, Kaspersky all have tools that can get rid of the infection. This guide will walk you through using the Symantec Nimda Removal Tool.
Step 1: Download the Nimda Removal Tool from http://www.symantec.com/content/en/us/global/removal_tool/threat_writeups/Fixnimda.com
Step 2: Run the tool and let it find and remove the worm.
Step 3: Reboot your computer.
Run a scan with Malwarebytes to ensure the worm is removed:
Step 1: Download Malwarebytes Anti-Malware from https://www.malwarebytes.org/mwb-download/
Step 2: Run the setup file and install Malwarebytes.
*When installing Malwarebytes you will have the option to enable a free 30 day trial of their premium service, this is not required.
Step 3: Click the “Scan Now” button in green, if an update is available then click the “Update Now” button in the bottom right. The scan will begin once the update is finished.
Step 4: The scan may take some time, depending on your computer and the number of infections, but once it is finished click the “Apply Actions” button in green.
Step 5: Malwarebytes may or may not request that you reboot your computer after it has removed the infections, if it does you may proceed to reboot.