A hacker named Jack is trying to compromise a bank's computer system. He needs to know the operating system of that computer to launch further attacks. What process would help him?
Correct is A: Banner grabbing: Banner grabbing or OS fingerprinting is the method used to determine the operating system running on a remote target system. Identifying the OS used on the target host allows an attacker to figure out the vulnerabilities the system posses and the exploits that might work on a system to further carry out additional attacks
SSDP scanning
Simple Service Discovery Protocol (SSDP) is a networking protocol used to discover the directly connected devices. This protocol uses UDP using plug and play devices in order to exchange data. It works on port 1900.
The idle scan is a TCP port scan method that consists of sending spoofed packets to a computer[1] to find out what services are available. This is accomplished by impersonating another computer called a "zombie" (that is not transmitting or receiving information) and observing the behavior of the ''zombie'' system.
What is banner grabbing?
Whenever performing the intel-reconnaissance process during penetration testing or security auditing, we need to pay attention to the current web-server’s exposed information.
That’s where banner grabbing comes in. Banner grabbing is the act of getting software banner information (name and version), whether it’s done manually, or by using any OSINT tools that can do it for you automatically.
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