Scapy is a tool that can be used to craft and inject custom packets into a network. We will begin by using Scapy to scan for active UDP services. This can be done by sending an empty UDP packet to destination ports and then identifying the ports that do not respond with an ICMP port-unreachable response.
Next, we will use Scapy to perform a TCP stealth scan. A TCP port stealth scan performs a partial, three-way TCP handshake on target ports to identify whether the ports are accepting connections or not. This type of scan is referred to as a stealth scan, SYN scan, or half-open scan.
Next, we will use Scapy to perform a TCP connect scan. Generally, TCP connect scanning is an easier process than SYN scanning. This is because TCP connect scanning does not require the elevated privileges that are needed to generate and inject the raw packets used in SYN scanning...
