Decryption without the key is impossible. These files can only be retrieved if the user agrees to pay a ransom (usually in Bitcoin) within a specified amount of time to obtain a decryption key. Ransomware is a malicious program that encrypts the files on a user’s computer so they are unreadable. They often create “backdoors” which allows the creator unauthorized access to a user’s computer. Trojan horses typically show up in e-mail attachments or drive-by downloads. Worms target groups of connected computers on a network.Ī Trojan horse is a malicious program designed to trick a user about its true intent. Viruses typically target individual computers.Ī worm is a malicious program that replicates itself in order to spread to other computers, often in a single network. These are computer programs that replicate and modify other programs by inserting code. Below is a summary of some of the most common forms of malware. Malware is a significant problem throughout the world resulting in billions of dollars in damages to individuals and businesses every year. Those who spread malware are called “hackers.” There are several different classes of malware. Malware refers to a group of computer programs designed to work against the requirements of a user’s computer for the purposes of causing harm.

Trojan maker take over computer