Rootkits and Malicious Code Injection
Keywords:
GNU/Linux, rootkits, shellcode, stack overflow, buffer overrun, vulnerabilityAbstract
Rootkits are considered by many to be one of the most stealthy computer malware (malicious software) and pose significant threats. Hiding their presence and activities impose hijacking the control flow by altering data structures, or by using hooks in the kernel. As this can be achieved by loadable kernel code sections, this paper tries to explain common entry points into a Linux kernel and how to keep a persistent access to a compromised machine.References
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