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Client Fingerprinting via Analysis of Browser Scripting Environment

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‘FreeBSD amd64’ depending upon the processor architecture. Konqueror on GNU/Linux will return one of four different values (e.g. ‘Linux i686’, ‘Linux i686 X11’, ‘Linux x86_64’, ‘Linux x86_64 X11’) depending upon the processor architecture and Konqueror version. Konqueror 3.x will include ‘X11’ after the processor architecture.

The navigator.product and navigator.productSub contain information will allow Konqueror 3.x browsers to be distinguished from Konqueror 4.x browsers. In general Konqueror 4.x provides values more similar to those of other browsers. Konqueror 3.x will contain values of ‘Konqueror/khtml’ for navigator.product and ‘20040107’ for navigator.productSub, while Konqueror 4.x will contain values of ‘Gecko’ for navigator.product and ‘20030107’ for navigator.productSub.

The navigator.vendor property contains returns the value of ‘KDE’ while will allow it to easily distinguish it from other browsers. The possible states of the navigator.vendorSub property provide another way in which Konqueror 3.x can be distinguished from Konqueror 4.x. In Konqueror 3.x, navigator.vendorSub is an undefined function, while in Konqueror 4.x the property is defined but returns and empty string.

5.7. Android

navigator.userAgent: Mozilla/5.0

(Linux; U; Android 2.2; en-us; Sprint

APA9292KT Build/FRF91) AppleWebKit/533.1 Version/4.0 Mobile Safari/533.1 navigator.appName: Netscape navigator.appCodeName: Mozilla

(KHTML, like Gecko)

navigator.appVersion: 5.0

(Linux; U; Android 2.2; en-us; Sprint

APA9292KT Build/FRF91) AppleWebKit/533.1 Version/4.0 Mobile Safari/533.1 navigator.appMinorVersion: undefined navigator.browserLanguage: undefined navigator.cpuClass: undefined navigator.systemLanguage: undefined navigator.language: en navigator.buildID: undefined navigator.oscpu: undefined navigator.platform: Linux armv7l navigator.product: Gecko navigator.productSub: 20030107 navigator.userLanguage: undefined navigator.userProfile: undefined navigator.vendor: Google Inc. navigator.vendorSub: dne

(KHTML, like Gecko)

custom.scripting: Javascript/1.7 JScript/0.0

Mark Fioravanti, mark.fioravanti.ii@gmail.com

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