Coming in a variety of forms, ransomware most often compromises PCs through phishing campaigns and fraudulent emails. Once a PC is infected, the malware will encrypt, move, and potentially delete files, before throwing up a landing page demanding a ransom in Bitcoin.
Demands for payment can range from a few to thousands of dollars. However, giving in and paying the fee not only further funds the development and use of this malware, but there is no guarantee any decryption keys given in return will work.
The No More Ransom Project, launched by the National High Tech Crime Unit of the Netherlands' police, Europol, Kaspersky, and Intel Security, is a hub for victims to find out how to remove infections -- and how to prevent themselves becoming infected in the future.
Unfortunately, not every type of ransomware has been cracked by research teams. Time and vulnerabilities which can be exploited by cybersecurity experts are required, and so some ransomware families do not have a solution beyond wiping your system clean and using backup data.
However, researchers are cracking more types of ransomware every month and there are a number of tools available which give victims some hope to retrieve their files.
The No More Ransom Project offers a quick way to find out what sort of ransomware is on your PC using this step-by-step guide. Alternatively, the Malware Hunter Team runs the ID Ransomware online service which can also be used to identify infections.
Below, in alphabetical order, you can find a range of tools and software made available by researchers to scour your PC clean of the most common types of infection.