Botnet software is designed to infect large numbers of Internet-connected devices. Some botnets comprise millions of compromised machines, each using a relatively small amount of processing power. This means it can be difficult to detect this type of malware, even when the botnet is running.
Ransomware is a form of malware that encrypts victims’ information and demands payment in return for the decryption key. Paying a ransom does not necessarily guarantee that you will be able to recover the encrypted data.
RATs (remote-access Trojans) are malware that installs backdoors on targeted systems to give remote access and/or administrative control to malicious users.
Rootkits comprise several malicious payloads, such as keyloggers, RATs and viruses, allowing attackers remote access to targeted machines. Bootkits are a type of rootkit that can infect start-up code – the software that loads before the operating system.
Spyware is a form of malware used to illicitly monitor a user’s computer activity and harvest personal information.
A Trojan is a type of malware that disguises itself as legitimate software but performs malicious activity when executed.
A computer virus is a piece of malicious code that is installed without the user’s knowledge. Viruses can replicate and spread to other computers by attaching themselves to other computer files.
Worms are like viruses in that they are self-replicating. However, they do not need to attach themselves to another program to do so.
A wiper is a class of malware whose intention is to wipe the hard drive of the computer it infects. A piece of malware referred to as "Wiper" was allegedly used in attacks against Iranian oil companies and is in use against targets in Ukraine.
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