Trojan malware was named after the Trojan Horse that ancient Greeks used to infiltrate the city of Troy. The wooden horse was perceived as a gift to the Trojans, but it was a ploy to sneak Greek soldiers behind the Trojan walls and ultimately win the war. Trojan malware works similarly. This malicious type of malware is disguised as regular software. Once downloaded, Trojans survive by remaining unnoticed, which makes it a popular choice for many cyber-criminals.
What Happens When You’re Infected
Instead of spreading and multiplying like other types of malware, Trojans go unnoticed and collect your online information and gain access to your computer system. They also infiltrate your security systems so that hackers and cyber-criminals can gain access to your data. Upon activation, Trojans allow these hackers to have access to your system and data. They also enable them to spy on you and disrupt your computer and network’s performance.
Different types of Trojan Malware
Trojans can take many forms, and they have a diverse range of functions. Some of the more common types are:
- Backdoor Trojan: creates holes in the computer’s security that allows hackers and cyber-criminals access and control over your data and software. These Trojans make it so invaders can send, receive, download malware, and alter files.
- Downloader Trojan: download new malware, Trojans, adware, and other malicious programs onto your computer.
- Spy Trojan: spy on you by tracking your data, passwords, and highly used applications and websites.
- Distributed Denial of Service (DDoS) Attack Trojan: target web addresses from your computer to increase online traffic that eventually overwhelms the network and results in service denials.
- Banker Trojan: Steals online banking data so cyber-criminals have access to your credit cards, debit cards, and electronic payment systems.
How to protect yourself
The best way to protect yourself is by installing anti-malware software and periodically running diagnostic scans. Additionally, be sure that your software is frequently updated because Trojans will take advantage of any security holes caused by outdated software. Trojans can infect all types of devices including PCs, Macs, smartphones, laptops, and tablets, so be sure to use the anti-malware software on all of these devices.
In addition to anti-malware software, you can further protect yourself by avoiding questionable websites, links, and downloads. Trojans are commonly found linked to pirated materials and links in unfamiliar emails. Also, use complex passwords and firewalls to guard your accounts and personal information.
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Resources: https://www.avg.com/en/signal/what-is-a-trojan, https://us.norton.com/internetsecurity-malware-what-is-a-trojan.html, https://www.intego.com/mac-security-blog/whats-the-difference-between-malware-trojan-virus-and-worm/, https://usa.kaspersky.com/resource-center/threats/trojans