試験ZDTA トピック2 問題203 スレッド

Downloaders are malware whose primary job is to retrieve and install additional payloads. They are frequently used as a first-stage infection because the initial file can be small and then pull ransomware, RATs, infostealers, or other malware after execution. Option C (Downloaders) is correct because a downloader's purpose is specifically to deliver other malware.
Why the other options are incorrect:
A). RAT: A remote access trojan gives an attacker interactive control over a compromised host after infection.
B). Maldocs: A malicious document uses macros, embedded objects, or exploit content to run code when opened.
D). Exploitation tool: An exploitation tool attacks a vulnerability. A downloader is the malware type whose purpose is to fetch and install additional malware.