Chapter 1
Operating Systems
Course: 220 1202 Comptia A Exam Core 2
Subject: 220 1102 Comptia A Plus Exam Core 2
Chapter: Security
1. Types of Malware
1.1 Trojan
- Description: A type of malicious software disguised as legitimate software. Once installed, it can provide unauthorized access, steal information, or cause other types of damage.
- Behavior: Trojans often rely on social engineering to trick users into installing them, such as pretending to be a useful tool or attachment.
- Real-Life Example: A user downloads what appears to be a free PDF converter, but it secretly installs a Trojan that creates a backdoor for attackers.
1.2 Rootkit
- Description: A rootkit is designed to hide its presence or the presence of other software, often giving an attacker elevated (root) access to a system.
- Behavior: It operates at the kernel level and can intercept system calls to hide files, processes, or registry keys.
- Real-Life Example: Rootkits can be used by attackers to hide their malicious processes from antivirus programs, making them difficult to detect.