Trojan Horse malware is a malware type that gives the illusion of a legitimate or useful software. It tricks users into downloading or installing it by masquerading as a harmless file or program, such as fake antivirus software or a free game or app download.
Once inside the system, it carries out malicious activities such as stealing data, opening backdoors to your network, or compromising security. It’s for this reason implementing strong cyber security measures is so important for businesses.
How Trojan Horse Malware Works
Trojan Horse viruses may be presented in the following ways:
- Email attachments from unknown or disguised sources
- Downloads from untrustworthy websites
- Fake software updates or ads
- Social engineering tricks, like misleading pop-ups or messages
When the user installs or opens the file, the Trojan runs harmful operations without their knowledge. Once installed by the user, the malware may grant a threat actor access to a device (backdoor malware), or may replicate automatically throughout the network (virus).
Common Types of Trojan Malware
There are several common types of Trojan Horse viruses. Each one serves different malicious purposes, so it’s important to understand the differences between them.
- Backdoor Trojans: Create a hidden entry point for hackers to control the system remotely
- Banking Trojans: Steal financial data, such as login credentials or account details
- Keylogger Trojans: Record keystrokes to capture sensitive information like passwords
- Ransomware Trojans: Lock or encrypt files and demand payment to restore access
- Spyware Trojans: Monitor user activities and send private information to the hacker
Risks Posed by a Trojan Horse Virus
The risks associated with a Trojan Horse virus include:
- Theft of sensitive information (personal, financial, or business data)
- Remote control of infected systems by hackers
- Data corruption or loss
- Use of your device in botnet attacks
- Financial losses and legal repercussions due to data breaches and business interruption
Preventative Measures
To protect against Trojan Horse viruses, follow these cybersecurity best practices:
- Train users not to download files from unknown or suspicious sources
- Restrict users from installing software from unknown sources.
- Install reliable endpoint protection (e.g. EDR or antivirus) and keep it updated
- Enable firewalls to block unauthorised access to your device.
- Avoid clicking on unexpected or suspicious email attachments and links
A Trojan Horse virus is a hidden threat that is often disguised as legitimate software. Understanding the risks of threat intelligence and following preventative measures can protect your systems and data from these malicious attacks.
If you want to protect your business against cyber threats, then get in touch and see how our cyber insurance and proactive services functions can help you.
