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Common Application Signatures

This document provides examples of signatures, and of other parameters that characterize applications. You can use application signatures with ISA Server HTTP filtering to block specific applications. For more information, see HTTP Filtering in ISA Server 2004.

This table provides some examples of common applications and their signatures.

Important:
Headers can change over time, particularly when new versions of applications are released.

Application Location HTTP header Signature

MSN Messenger

Request headers

User-Agent:

MSN Messenger

Windows Messenger

Request headers

User-Agent:

MSMSGS

Netscape 7

Request headers

User-Agent:

Netscape/7

Netscape 6

Request headers

User-Agent:

Netscape/6

AOL Messenger (and all Gecko browsers)

Request headers

User-Agent:

Gecko/

Yahoo Messenger

Request headers

Host

msg.yahoo.com

Kazaa

Request headers

P2P-Agent

Kazaa

Kazaaclient:

Kazaa

Request headers

User-Agent:

KazaaClient

Kazaa

Request headers

X-Kazaa-Network:

KaZaA

Gnutella

Request headers

User-Agent:

Gnutella

Gnucleus

Edonkey

Request headers

User-Agent:

e2dk

Internet Explorer 6.0

Request headers

User-Agent:

MSIE 6.0

Morpheus

Response header

Server

Morpheus

Bearshare

Response header

Server

Bearshare

BitTorrent

Request headers

User-Agent:

BitTorrent

SOAP over HTTP

Request headers

Response headers

User-Agent:

SOAPAction

This table provides other parameters that characterize applications.

Application Location Type Value

Kazaa

Headers

Request Header

X-Kazaa-Username:

X-Kazaa-IP:

X-Kazaa-SupernodeIP:

BitTorrent

Extensions

None

.torrent

Many peer-to-peer clients

Headers

Request Header

P2P-Agent

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