Network
- Scapy, Scapy3k: Send, sniff and dissect and forge network packets. Usable interactively or as a library
- pypcap, Pcapy and pylibpcap: Several different Python bindings for libpcap
- libdnet: Low-level networking routines, including interface lookup and Ethernet frame transmission
- dpkt: Fast, simple packet creation/parsing, with definitions for the basic TCP/IP protocols
- Impacket: Craft and decode network packets. Includes support for higher-level protocols such as NMB and SMB
- pynids: Libnids wrapper offering sniffing, IP defragmentation, TCP stream reassembly and port scan detection
- Dirtbags py-pcap: Read pcap files without libpcap
- flowgrep: Grep through packet payloads using regular expressions
- Knock Subdomain Scan, Enumerate subdomains on a target domain through a wordlist
- SubBrute, Fast subdomain enumeration tool
- Mallory, Extensible TCP/UDP man-in-the-middle proxy, supports modifying non-standard protocols on the fly
- Pytbull: Flexible IDS/IPS testing framework (shipped with more than 300 tests)