CHAPTER 13. Maintaining Access
Introduction
Частые гости наскучат. – Russian proverb: “A constant guest is never welcome.”
Once access has been achieved on a target system, we need to maintain that access. It is not uncommon for system maintenance windows to occur during the penetration test – if part of the scheduled maintenance is to patch the vulnerability we've exploited, our access might be terminated. Also, if a system is rebooted or we lose network connectivity, remote shell access may be permanently lost.
The use of backdoors is very common in a penetration test. There is often a need to find ways around defense obstacles, such as firewalls or access control lists. Backdoors can slip past all these defenses, giving ...
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