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| Scan/Attack Detectors Section | |
| Fake Service version 1.1 - Fakes a Wingate service and Sendmail service, and listens for and logs scans on those ports. By Themag00ru. | |
| This logs and notifies you of portscans run against your host. Some kinds of D.o.S attacks might also get logged. By Martin Carlzon. | |
| detect-scans v0.80 logs and notifies you of portscans run against your host. Some kinds of D.o.S attacks might are also logged. By Martin Carlzon | |
| Sorry, a description is unavailable. | |
| Sorry, a description is unavailable. | |
| Sorry, a description is unavailable. | |
| Here's a modification of rexec that I call klaxon. Instead of actually executing anything, it returns a benign error to the caller, and syslogs the calling host, username, and name of attempted service access. It's also extremely useful for detecting portscanner attacks like those perpetrated by ISS and SATAN. Ident support (RFC931) is currently optional. klaxon is useful in place of any tcp or udp service port where you would not suspect activity. For Solaris2.X machines it will also work on the rpc.rexd port. | |
| Modified rexec source - captures ident information upon being portscanned. Does not actually emulate services other than listening at certain tcp ports. This is reported to work under Solarix 2.x and possibly linux. Now modified to provide limited counterintelligence (ident query back to source). Homepage here. | |
| ktcpd-strobemasker v1.4 - linux TCP/IP patch: ktcpd-strobemasker - Features: detects all forms of strobes (including stealth strobes AND UDP strobes) using a heuristic based on the rate of refused connections/bad packets coming in, logs all strobe attempts, when a TCP or UDP strobe is detected, start refusing all connections from this IP until attempts have stopped for a specifed amount of time, log all TCP connection accepts in a form containing ip, port, uid of accepting process and accepting process name and pid, log unexpected packets with their syn, fin, ack, and rst flags, log rejected UDP packets, log common ICMP packets. Designed for 2.0.x kernels. By Jesse Off. | |
| Sorry, a description is unavailable. | |
| nostrobe contains a pair of simple, yet effective port scan detection/reporting programs. By BiffSocko. | |
| Sorry, a description is unavailable. | |
| Sorry, a description is unavailable. | |
| Sorry, a description is unavailable. | |
| Sorry, a description is unavailable. | |
| Portwatch - acts a server, just sits on a port and waits for connections. | |
| RWX Back Orifice Sweep Scanner - RWXBO is a simple program that will log attempts to scan your ip range, and logs some commands that the attacker might type. By KByte, of RwX Net Security. | |
| Sorry, a description is unavailable. | |
| Sorry, a description is unavailable. | |
| Watches for TCP connection, records state for the past 1 second - if multiple connections occur from the same host, an internal counter is increased for that IP. If the counter reaches some value (which can be changed in #define) scandetd will send email to administrator. Information sent includes time, ip address, number of connections made, first and last connection times, and guessed type of scan (syn/fin). Logs to syslog by default. Configurable to allow trusted addresses. Tested under linux - possibly sunos and freebsd. | |
| Scandetd is a port scan detection daemon that waits for incoming tcp connections and tries to recognize port scans. If tripped, scandetd sends email to root@127.0.0.1 with the time, attacking host, number of connections made, port of the first and last connections. Easy on system resources; for Linux; initial release. 6k. By Michal Suszycki. | |
| Basic, but effective perl-based portscan detector. By J-Dog. | |
| Latest release of J-Dog's portscan detector, now with the following features: uses nmap, queso, and nmbnamex to resolve remote "attacking/scanning" IP to a hostname, perform a tcp connect() scan on the remote host, grab the NetBIOS name of the scanner, and then use Queso to determine the OS of the remote host. By J-Dog. | |
| Scanlogd v2.1 is a TCP port scan detection tool for linux, originally designed to illustrate various attacks an IDS developer has to deal with, for a Phrack Magazine article. It is designed to be totally safe to use, and will recognize all of the latest nmap scans. HTML man page available here. Homepage here. By Solar Designer | |
| Linux scanlogd v1.2 - Linux scanlogd port scan detector. Use to detect many of the latest nmap scans. By Solar Designer. | |
| Linux scanlogd v1.3 is a port scan detector daemon for Linux that is designed to recognize all of the latest nmap scans. By Solar Designer. | |
| scanlogd v1.1 - Linux scanlogd port scan detector. By Solar Designer. | |
| Port scan detector that takes an active stance to shut down attacking hosts while notifying administrators and provides an easy configuration and startup. Attacking hosts are denied access to your host by dropping of local routes or adding the host to a TCP Wrappers hosts.deny file, all in real-time. Even picks up stealth scans. Freeware from Cisco/Wheelgroup coders. | |
| See description above. | |
| See description above. | |
| See description above. | |
| tcplogd v0.1.4 is a stealth-scan detecting daemon that is designed to detect most nmap sX/sN/sS scans, queso and other network scanners. This release includes fixes for the port range bugs. By CyberPsychotic, Kyrgyzstani Anarchy Linux Users Group. | |
| See description above. | |
| See description above. | |
| tcplogd v0.1.5pre1 is a stealth-scan detecting daemon that is designed to detect most nmap sX/sN/sS scans, queso and other network scanners. "trusted hosts" feature added in this release. By CyberPsychotic, Kyrgyzstani Anarchy Linux Users Group. | |
| tcplogd v0.1 is a stealth-scan detecting daemon that is designed to detect most nmap sX/sN/sS scans, queso and other network scanners. By CyberPsychotic, K.A.L.U.G.. | |
| Patch for tcplogd-0.1.4a.tar.gz | |
| tcplogd v0.0 is a stealth-scan detector (TCP only). Configurable. 15k. By CyberPsychotic, K.A.L.U.G.. |