For those of you who are involved in the IT world, of course you are already familiar with the term malware. Malware is an abbreviation of “malicious software”, which is software designed to cause damage to a computer, so this malware is one of the common causes of data breaches.

Computers infected with malware will usually show symptoms such as slower computer performance, sending emails without any action from the user, rebooting randomly, or starting processes without the owner's knowledge. Therefore, it is no longer surprising that malware is something that IT experts and cybersecurity.

Types of Malware that Attack Data Security

Keylogger

This type of malware will record the buttons pressed by the user and send the data to the perpetrator. Usually users are not aware that they are being monitored. Most cases of keylogging are used to steal passwords or sensitive data.

The keylogger itself can usually be a physical cable that is secretly connected to a peripheral such as a keyboard, or installed by a Trojan.

Trojans

This trojan program is a type of malware that disguises itself as legitimate software. Usually trojan programs will hide on your computer until they are opened. Once opened, it is possible for criminals to spy on you, steal sensitive data, and also gain backdoor access to your system.

Usually this type of malware is downloaded via email attachments, website downloads, or instant messages.

Ransomware / Crypto-Malware

The third type of malware is ransomware. Ransomware is a type of malware that is designed to lock a user's system or usually deny access to data until a ransom is paid before the system can be reopened.

Crypto-Malware is a type of ransomware that encrypts user files and requires payment within a certain period of time. Apart from that, payments are often made using digital currencies such as Bitcoin.

Spyware

The fourth type, namely spyware, is a type of malware designed to gain access and damage your computer. This type of malware usually collects user information such as habits, browsing history, and even personal identification information.

In many cases perpetrators will sell your data to data companies, capture your bank account information, or steal your personal identity. Spyware is unknowingly downloaded in software bundles or from file sharing sites.

Rootkits

This type of rootkit malware is difficult to clean from the system. A rootkit itself is a backdoor program that allows perpetrators to maintain command and control over a computer without the user's knowledge. This access has the potential to result in full control over the targeted system.

The controller will then be able to log files, spy on owner usage, run files, and change system configurations remotely. As previously mentioned, this type is difficult to clean from the system even though there is antivirus software that can detect it. In many cases that have occurred, the best way to overcome this is to remove the rootkit and rebuild the system.

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