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Active OS Fingerprinting Tools

These products are designed to guestimate remote operating systems and sometimes even the patch level that the operating system is running on. 
Active fingerprinting tools rely on stimulus-response, where the source will send certain packets (stimulus) to the target, the target's response can be analyzed to identify the operating system, Different Operating Systems respond to the source packets in different ways, hence their ability to fingerprint different remote hosts reliably . See Also Passive fingerprinting tools. These perform a similar function but without stimulating the remote host, instead they rely on passing traffic.   

Last Updated by Paul Hortop 13 Dec 2006



Links to Products

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SinFP

  GomoR http://www.gomor.org/cgi-bin/index.pl?mode=view;page=sinfp

SinFP is able to fingerprint over IPv4, and over IPv6. It can do active fingerprinting, and passive fingerprinting. Online and offline modes are supported. One thing to note, passive OS fingerprinting is made to match against active fingerprinting signatures, so no need to bother with passive signatures.

SinFP signatures are stored in a SQLite database, a portable format if anyone wants to integrate it in another project.

non commercial

Last Updated: 13 Dec 2006


nmap

most OS supported

fyodor

http://insecure.org/

Nmap is a utility for network exploration or security auditing. It supports ping scanning (determine which hosts are up), many port scanning techniques (determine what services the hosts are offering), and TCP/IP fingerprinting (remote host operating system identification). Nmap also offers flexible target and port specification, decoy/stealth scanning, sunRPC scanning, and more. Most UNIX and Windows platforms are supported in both GUI and command-line modes. Several popular handheld devices are also supported, including the Sharp Zaurus and the iPAQ.

Freeware

Last Updated 13 Dec 2006


Xprobe 2

*nix

Fyodor Yarochkin and Ofir Arkin

http://www.sys-security.com/index.php?page=xprobe

Xprobe is an alternative to some tools which are heavily dependent upon the usage of the TCP protocol for remote active operating system fingerprinting.

Xprobe2 is an active operating system fingerprinting tool with a different approach to operating system fingerprinting. Xprobe2 rely on fuzzy signature matching, probabilistic guesses, multiple matches simultaneously, and a signature database.

Freeware

Last Updated 13 Dec 2006

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Amap

*nix

THC

http://www.thc.org/releases.php?s=4&q=&o=

Amap is a next-generation scanning tool, which identifies applications and services even if they are not listening on the default port by creating a bogus-communication and analyzing the responses.

Freeware

Last Updated: 13 Dec 2006


Vmap   not strictly an OS fingerprinter

*nix

THC

http://www.thc.org/releases.php?s=12&q=&o=

Vmap stands for version mapper. It allows you to find out the version of a daemon by fingerprinting the features and replys of bogus commands. It's a great addition to the other *map tools.

Freeware

Last Updated; 13 Dec 2006


Snacktime

*nix

Tod Beardsley

http://www.planb-security.net/wp/snacktime.html

As far as I can tell, measuring RTOs seems to be a pretty accurate and stealthy method for profiling networked devices, and Snacktime seems to be a pretty reasonable implementation. Furthermore, masking ones "normal" RTO can be difficult for some operating systems, and given this technique's relative newness, is much more uncommon than more traditional methods of defeating profiling

Freeware

Last Updated:13 Dec 2006

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