Trojans

Trojans are a type of malware that appears legitimate but performs malicious functions when executed. Named after the Trojan Horse of Greek mythology, trojans disguise themselves as legitimate software or files to trick users into installing them.

Key Characteristics

• Deceptive Appearance: Masquerades as legitimate software
• User Initiation: Requires user action to execute
• Backdoor Creation: Often creates unauthorized access to systems
• Multiple Functions: Can perform various malicious activities

Advantages (for attackers)

• User Trust Exploitation: Bypasses security by appearing legitimate
• Persistence: Can establish long-term access to systems
• Functionality: Can perform various malicious activities
• Evasion: Difficult to detect due to legitimate appearance

Disadvantages

• System Compromise: Can provide unauthorized access to systems
• Data Theft: May steal sensitive information
• System Damage: Can corrupt or delete files
• Privacy Violation: May enable surveillance or monitoring

Best Practices

• Download software only from trusted sources
• Use and maintain updated antivirus and anti-malware solutions
• Regular system monitoring for unusual activity
• User education on identifying suspicious software

Use Cases

• Unauthorized system access
• Data exfiltration
• Keylogging and credential theft
• Remote system control