Troijalisation

Trojailisation is the process of disguising malicious software as legitimate software by using the signature files of well-known programs to evade detection by antivirus software. This tactic is often used in conjunction with zero-day exploits and social engineering techniques to compromise the security of a system.

The term trojailisation is a combination of "Trojan" and "virtualizer," and it refers to the practice of embedding a custom-built virtual machine within a Trojan executable. This allows the malicious code to operate independently from the main application, making it harder for antivirus programs to detect. When a trojan with virtualisation capabilities is unleashed, it creates a virtual machine (VM) within the compromised system's memory. This virtual machine then operates independently of the rest of the system, essentially shielding itself from observation and exploitation.

The use of virtualisation to gain an attack foothold reflects current antibytware evasion techniques. As threat actors implement increasingly sophisticated ways to evade security controls, the stakes become more challenging for cybersecurity teams worldwide to stay secure.

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