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| Types of Trojans in Cybersecurity |
Types of Trojans in Cybersecurity - Explore different types of Trojans in cybersecurity, from banking Trojans to remote access Trojans (RATs). Learn their impact, research backed insights, and how to stay protected. Read more on DarkOSINT Blog.
Among many forms of malware, Trojans remain one of most dangerous because they rely on deception and social engineering. Unlike viruses or worms, Trojans trick users into installing them by posing as legitimate software. Once active, they can steal data, spy on activities, or even take full control of a system.
But not all Trojans are same. Cybersecurity researchers categorize them into several distinct types, each with unique functions and attack strategies.
1. Remote Access Trojans (RATs)
RATs allow attackers to take full control of an infected device. They can:
- Access files and documents.
- Install additional malware.
- Activate webcams or microphones to spy on victims.
- Use system as part of a botnet.
Research Insight: According to Palo Alto Networks, RATs like njRAT and DarkComet remain popular among cybercriminals due to their stealth and flexibility.
2. Banking Trojans
Designed to steal financial information, banking Trojans target online banking sessions by intercepting credentials or injecting malicious code into browsers.
Examples include:
- Zeus/Zbot - one of most infamous banking Trojans.
- TrickBot - often used in ransomware campaigns.
Research Insight: Europol’s Internet Organized Crime Threat Assessment (IOCTA) reports that banking Trojans continue to be a major threat to financial institutions worldwide.
3. Downloader Trojans
These Trojans don’t cause immediate harm but act as a gateway to download and install other types of malware, such as ransomware or spyware.
Research Insight: A 2023 Check Point report found that downloader Trojans are often first stage in multi layered attacks, paving way for more destructive malware
4. Backdoor Trojans
A backdoor Trojan gives cybercriminals unauthorized remote access to infected systems, bypassing normal authentication. Once installed, attackers can execute commands, steal data, or install more malware.
Research Insight: CrowdStrike analysis shows that backdoor Trojans are frequently used in Advanced Persistent Threats (APTs), especially in state sponsored cyber espionage.
5. Spy Trojans
These Trojans secretly monitor user activities, capturing keystrokes, screenshots, and browsing history. They are commonly used for:
- Keylogging passwords.
- Stealing personal information.
- Corporate espionage.
6. Ransom Trojans
Ransom Trojans (a hybrid of ransomware and Trojan techniques) lock a user’s files or system and demand payment for access restoration. Unlike typical ransomware spread via worms, Trojans disguise themselves before launching attack.
7. SMS Trojans (Mobile Threats)
On smartphones, SMS Trojans send premium rate text messages without user consent or intercept one time passcodes (OTPs) to bypass two factor authentication.
Research Insight: Kaspersky’s 2024 Mobile Threat Report highlights SMS Trojans as one of fastest growing mobile malware categories, especially in regions with high Android adoption.
Stay informed with more research based cybersecurity insights at DarkOSINT Blog - your trusted source for digital security and intelligence.
