Which keylogger type logs keystrokes by altering memory tables within the browser or system and can bypass security controls?

Which keylogger type logs keystrokes by altering memory tables within the browser or system and can bypass security controls?

• A. JavaScript-Based Keylogger
• B. Spyware Propagation
• C. Memory-Injection-Based Keylogger
• D. Form-Grabbing-Based Keylogger

Answer: (C)

Memory-injection-based keyloggers log keystrokes by inserting code into a running process and manipulating the in-memory data that tracks keyboard input. By hooking into input routines or tampering with memory-resident key state tables, they can capture keystrokes as they are processed, often before the target application sees them. Because the activity happens in memory and can be hidden inside a legitimate process or kernel-level hook, these keyloggers can evade many security controls that focus on disk writes or obvious network activity, making them harder to detect. This approach contrasts with browser-based or form-grabbing methods, which operate within specific layers (like the browser's JavaScript engine or form submission flow) and don’t typically alter the underlying memory structures used by the OS to process input. Form-grabbing focuses on captured data from forms, while JavaScript-based keyloggers run in the browser sandbox and are more limited by browser security. The memory-injection technique is the one that specifically mentions altering memory tables to intercept input and can bypass controls by staying resident in memory.

Memory-injection-based keyloggers log keystrokes by inserting code into a running process and manipulating the in-memory data that tracks keyboard input. By hooking into input routines or tampering with memory-resident key state tables, they can capture keystrokes as they are processed, often before the target application sees them. Because the activity happens in memory and can be hidden inside a legitimate process or kernel-level hook, these keyloggers can evade many security controls that focus on disk writes or obvious network activity, making them harder to detect. This approach contrasts with browser-based or form-grabbing methods, which operate within specific layers (like the browser's JavaScript engine or form submission flow) and don’t typically alter the underlying memory structures used by the OS to process input. Form-grabbing focuses on captured data from forms, while JavaScript-based keyloggers run in the browser sandbox and are more limited by browser security. The memory-injection technique is the one that specifically mentions altering memory tables to intercept input and can bypass controls by staying resident in memory.