Zykeys demonstrates how default wireless settings are derived on some models of ZyXEL routers.   You can download it from the following link: https://packetstormsecurity.com/files/download/119156/zykeys.tar.gz Source: https://packetstormsecurity.com/files/119156/Zykeys-Wireless-Tool.html

Zorp is a proxy firewall suite with its core architecture built around today's security demands. It uses application level proxies, is modular and component based, uses a script language to describe policy decisions, makes it possible to monitor encrypted traffic, lets you override client actions, and lets you protect your servers with its built in…

zyHell is a perl script that scans for the ZyXEL godmode backdoor account.   You can download it from the following link: https://packetstormsecurity.com/files/download/160803/zyHell.pl.txt Source: https://packetstormsecurity.com/files/160803/ZyXEL-Godmode-Backdoor-Account-Scanner.html

Zeek is a powerful network analysis framework that is much different from the typical IDS you may know. While focusing on network security monitoring, Zeek provides a comprehensive platform for more general network traffic analysis as well. Well grounded in more than 15 years of research, Zeek has successfully bridged the traditional gap between academia…

zipp0.c but enhanced to scan for wingates, just pile up all the bcast/wgates addys into one file and this program will check them for you and set them on another file.   You can download it from the following link: https://packetstormsecurity.com/files/download/11458/wbscan.tar.gz Source: https://packetstormsecurity.com/files/11458/wbscan.tar.gz.html

Zone-H posting utility that is multi-threaded.   You can download it from the following link: https://packetstormsecurity.com/files/download/112948/zoneh-poster.txt Source: https://packetstormsecurity.com/files/112948/Zone-H-Multithreaded-Poster.html

Yersinia implements several attacks for the following protocols: Spanning Tree (STP), Cisco Discovery (CDP), Dynamic Host Configuration (DHCP), Hot Standby Router (HSRP), Dynamic Trunking (DTP), 802.1q and VLAN Trunking (VTP), helping a pen-tester with different tasks.   You can download it from the following link: https://packetstormsecurity.com/files/download/47507/yersinia-0.7.tar.gz Source: https://packetstormsecurity.com/files/47507/yersinia-0.7.tar.gz.html

Yet Another Micro Monitor: a powerful system monitor/tool, using curses library, that displays tasks info, memory info, system info, CPU activity, etc. Use it also to easily manage processes and users, to do tasks like renice and kill processes. 76k.   You can download it from the following link: https://packetstormsecurity.com/files/download/13393/yamm-2.6.0.tar.gz Source: https://packetstormsecurity.com/files/13393/yamm-2.6.0.tar.gz.html

Yet Another Wingate Scanner (YAWS) Version 0.1.   You can download it from the following link: https://packetstormsecurity.com/files/download/11729/yaws.c Source: https://packetstormsecurity.com/files/11729/yaws.c.html

yInjector is a MySQL injection penetration tool. It has multiple features, proxy support, and multiple exploitation methods.   You can download it from the following link: https://packetstormsecurity.com/files/download/98359/yInjector.tar.gz Source: https://packetstormsecurity.com/files/98359/yInjector-MySQL-Injection-Tool.html