I can help you with that, but listing and explaining 36 types of computer viruses is quite extensive and goes beyond the scope of a typical tutoring session. It would also be very long for a WhatsApp message. However, I can provide you with a list of common categories of computer viruses and malware, with brief explanations for each. This will give you a good overview. Here are some common types of malicious software: 1. Boot Sector Virus: Infects the boot sector of a hard drive or floppy disk. It loads into memory when the system boots up. 2. File Infector Virus: Attaches itself to executable files (like .exe or .com files). When the infected file is run, the virus activates. 3. Macro Virus: Written in a macro language (like VBA) and embedded in documents (e.g., Microsoft Word, Excel). It runs when the document is opened. 4. Resident Virus: Loads into the computer's memory and stays active, even after the infected program is closed. It can infect other files as they are accessed. 5. Non-Resident Virus: Executes, infects other files, and then terminates. It doesn't stay in memory. 6. Polymorphic Virus: Changes its code each time it replicates, making it difficult for antivirus software to detect using signature-based methods. 7. Metamorphic Virus: Rewrites its entire code with each new infection, making it even harder to detect than polymorphic viruses. 8. Stealth Virus: Actively tries to hide its presence from antivirus software by intercepting system requests and presenting a "clean" version of the infected file. 9. Multipartite Virus: Can infect both the boot sector and executable files, making it very difficult to remove completely. 10. Companion Virus: Creates a new file with a similar name to an existing executable file (e.g., program.com when program.exe exists) and executes when the user tries to run the original program. 11. Worms: Unlike viruses, worms are standalone malicious programs that replicate themselves to spread to other computers, often over networks, without needing to attach to an existing program. 12. Trojans (Trojan Horses): Disguise themselves as legitimate software or files. They don't replicate themselves but perform malicious actions once executed, such as stealing data or creating backdoors. 13. Ransomware: Encrypts a user's files or locks their system and demands a ransom payment for decryption or unlocking. 14. Spyware: Secretly monitors user activity, collects personal information (like passwords, browsing habits), and sends it to a third party. 15. Adware: Displays unwanted advertisements, often in pop-up windows, and can sometimes track browsing behavior. 16. Rootkits: Designed to gain unauthorized access to a computer and hide their presence or the presence of other malware. They operate at a deep system level. 17. Keyloggers: A type of spyware that records every keystroke a user makes, capturing passwords, credit card numbers, and other sensitive information. 18. Bots/Botnets: Infected computers (bots) controlled remotely by an attacker (botmaster) as part of a network (botnet) to perform coordinated malicious activities like DDoS attacks or sending spam. 19. Logic Bombs: Malicious code intentionally inserted into a software system that is set to trigger under specific conditions (e.g., a certain date or time). 20. Backdoors: A hidden method of bypassing normal authentication or security controls to gain access to a system. 21. Dialers: Malware that secretly dials premium-rate phone numbers, incurring high charges for the victim. 22. Joke Programs: Not truly malicious, but designed to trick users into thinking their system is infected or damaged, often by displaying alarming messages. 23. Hoaxes: False warnings about viruses or security threats, often spread via email, which can cause unnecessary panic or lead users to take harmful actions. 24. Browser Hijackers: Malware that alters a web browser's settings, such as the homepage or search engine, to redirect users to specific websites. 25. Fileless Malware: Malware that operates in RAM (memory) and does not write files to the hard drive, making it harder for traditional antivirus to detect. 26. Web Scripting Viruses: Malicious scripts embedded in websites that can infect visitors' browsers when they visit the compromised site. 27. Email Viruses: Viruses that spread through email, often disguised as attachments or links. 28. Network Viruses: Viruses that spread rapidly across computer networks. 29. Cross-Site Scripting (XSS) Malware: Exploits vulnerabilities in web applications to inject malicious scripts into web pages viewed by other users. 30. Man-in-the-Middle (MitM) Attacks: Attackers intercept communication between two parties, potentially stealing or altering data. While not a virus, it's a common cyber threat. 31. Zero-Day Exploits: Malware that takes advantage of a vulnerability in software that is unknown to the vendor, meaning there's no patch or fix available yet. 32. Scareware: Malware disguised as legitimate security software that frightens users into paying for unnecessary or fake removal services. 33. Cryptojacking: Malware that secretly uses a victim's computer processing power to mine cryptocurrency for the attacker. 34. DDoS Malware: Malware used to recruit computers into a botnet for launching Distributed Denial of Service (DDoS) attacks. 35. Macro/VBA Viruses: (Already listed as #3, but sometimes categorized separately due to prevalence) 36. Payload: The part of a virus or malware that performs the malicious action (e.g., deleting files, stealing data). It's the "what it does" part. This list covers the major categories. If you have specific viruses you'd like to know more about, feel free to ask! What's next?