Step 1: Identifying Malware Types:
Malicious software (malware) is categorized by its behavior and intent:
• Virus (A): A program that replicates itself by attaching to healthy host files. It executes when the file is run, often corrupting systems.
• Spyware (B): Runs silently in the background, monitoring user activity, recording keystrokes, and stealing credentials without the user's knowledge.
• Ransomware (C): Encrypts local files and storage systems using strong cryptography (like RSA or AES), completely blocking user access. It then displays a ransom note demanding payment (usually in cryptocurrencies like Bitcoin) in exchange for the decryption key.
• Adware (D): Automatically serves unwanted advertisements (pop-ups, banners) to generate revenue for its developer.
Step 2: Conclusion:
Since Gurmeet's files were locked and access was held for a cash/payment demand, her computer was infected with Ransomware (C).