December 2017
Intermediate to advanced
860 pages
16h 1m
English
Content preview from Metasploit Revealed: Secrets of the Expert Pentester
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Relevance of NOPs
NOPs or NOP-sled are No Operation instructions that simply slide the program execution to the next memory address. We use NOPs to reach the desired place in the memory addresses. We supply NOPs commonly before the start of the ShellCode to ensure its successful execution in the memory while performing no operations and just sliding through the memory addresses. The \x90 instruction represents a NOP instruction in the hexadecimal format.
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