WindowsSpyBlocker: Block spying and tracking on Windows

About

WindowsSpyBlocker  is an application written in Go and delivered as a single executable to block spying and tracking on Windows systems . The initial approach of this application is to capture and analyze network traffic  based on a set of tools.

Main window of WindowsSpyBlocker

Configuration file app.conf is generated at first launch :

Telemetry and data collection

To capture and analyze network traffic for the telemetry option, QEMU virtual machines are used on the server virtualization management platform Proxmox VE based on :

• Windows 10 Pro 64bits with automatic updates enabled.
• Windows 8.1 Pro 64bits with automatic updates enabled.
• Windows 7 SP1 Pro 64bits with automatic updates enabled.

Traffic dumps are clean every day and compared with the current rules to add / remove some hosts or firewall rules.

Tools used to capture traffic :

• qemu -net dump : capture
• Wireshark : capture + logs
• Sysmon : capture + logs
• Proxifier : logs

All traffic events are available in the logs folder :

• *-hosts-count.csv : number of events per host
• *-unique.csv : first trigger of an event per host / process / destination port

The data folder contains the blocking rules based on domains or IPs detected during the capture process :

• data/<type>/winX/spy.txt : Block Windows Spy / Telemetry
• data/<type>/winX/update.txt : Block Windows Update
• data/<type>/winX/extra.txt : Block third party applications

Firewall and Hosts data are the main types. The others are generated from these as :

• DNSCrypt : a protocol for securing communications between a client and a DNS resolver.
• OpenWrt : an open source project used on embedded devices to route network traffic.
• P2P : a plaintext IP data format from PeerGuardian.
• Proxifier : an advanced proxy client on Windows with a flexible rule system.
• simplewall : a simple tool to configure Windows Filtering Platform (WFP).

And about data collection, you can read the Telemetry collection page for more info.

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