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Arpwatch is a tool that monitors ethernet activity and keeps a database of ethernet/ip address pairings. It also reports certain changes via email. Arpwatch uses libpcap, a system-independent interface for user-level packet capture. Before building tcpdump, you must first retrieve and build libpcap, also from LBL, in: ftp://ftp.ee.lbl.gov/libpcap-*.tar.Z.
screamingCobra is an application for remote vulnerability discovery in ANY UNKNOWN web applications such as CGIs and PHP pages. Simply put, it attemps to find vulernabilities in all web applications on a host without knowing anything about the applications. Modern CGI scanners scan a host for CGIs with known vulnerabilities. screamingCobra is able to 'find' the actual vulnerabilities in ANY CGI, whether it has been discovered before or not.
NGSSniff is a network packet capture and analysis program. It requires Windows 2000 or XP, and allows users to capture, save and analyse traffic on their network. The current version of NGSSniff is a BETA test version, and is thus provided free of charge.
ISNprober is a tool that samples TCP Initial Sequence Numbers or IP ID's and can use that information to determine if a set of IP addresses belong to the same TCP/IP stack (machine) or not.
Aldebaran is an advanced libpcap-based network TCP sniffer. It gives a user only a payload from captured data and basic info about addresses and ports (nothing about flags, etc.). This is useful for monitoring data sent by connections and sniffing passwords. It supports filtering packets with not only simple port/address libpcap rules but also payload contents, and can send captured data to another host via UDP. It can also encrypt data written to a dump file, and analyse interface traffic and present statistics (packets count, sizes, average speed etc.) in HTML or a plain text file.
Sniff'em is a performance minded Windows based Packetsniffer, a new network management tool designed from the ground up with ease and functionality in mind
This program implements: a) A PPTP challenge/response sniffer. These c/r can be input into L0phtcrack to obtain the password, and b) An active attack on PPTP logons via the MS-CHAP vulnerability to obtain the users password hashes. Notice that this also generates the password hashes of the new password the user wanted to use. These can be input into L0phtcrack to get password, into a modified smbclient to logon onto a SMB sever, or into a modified PPP client for use with the Linux PPTP client.
NetXMon is a network sniffer with terminal emulation that can reconstruct and display network sessions. It has an X interface and requires XView support.
An advanced network sniffer system to monitor your networks. These programs are a part of the network security system used by Texas A&M University. It can be used for locating suspicious network traffic. The following programs are included: tcplogger - Log all TCP connections on a subnet udplogger - Log all UDP sessions on a subnet extract - Process log files created by tcplogger or udplogger netwatch - Realtime network monitor All three programs require an ANSI C compiler. Tcplogger and udplogger use the SunOS 4.x Network Interface Tap (nit).
Lankiller is a simple libpcap and libnet based tool which demonstrates how simple is to kill all TCP connections in a LAN network.It just sniffs packets and sends spooffed RST packets back.
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