How Not to Be Seen II: The Defenders Fight Back

For pt.I see ibid., vol. 5, no.1, p.67-69 (2007). This article discusses about stealthy software-that is, software that manipulates a computer in some way to avoid some aspect of its operation. The stealth is divided up into roughly three categories: passive, hooking, and hypervisor-based stealth detection. Most stealth malware hides by hooking and redirecting system calls, either at the kernel or the operating system (OS) level.