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114 lines
4.3 KiB
Markdown
114 lines
4.3 KiB
Markdown
**⭐PRs or any form of contribution will be appreciated⭐**
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# SpoofDPI
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Read in other Languages: [🇬🇧English](https://github.com/xvzc/SpoofDPI), [🇰🇷한국어](https://github.com/xvzc/SpoofDPI/blob/main/_docs/README_ko.md), [🇨🇳简体中文](https://github.com/xvzc/SpoofDPI/blob/main/_docs/README_zh-cn.md), [🇷🇺Русский](https://github.com/xvzc/SpoofDPI/blob/main/_docs/README_ru.md), [🇯🇵日本語](https://github.com/xvzc/SpoofDPI/blob/main/_docs/README_ja.md)
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A simple and fast software designed to bypass **Deep Packet Inspection**
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# Installation
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## Binary
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SpoofDPI will be installed in `~/.spoof-dpi/bin`.
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To run SpoofDPI in any directory, add the line below to your `~/.bashrc || ~/.zshrc || ...`
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```
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export PATH=$PATH:~/.spoof-dpi/bin
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```
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---
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```bash
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# macOS Intel
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curl -fsSL https://raw.githubusercontent.com/xvzc/SpoofDPI/main/install.sh | bash -s darwin-amd64
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# macOS Apple Silicon
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curl -fsSL https://raw.githubusercontent.com/xvzc/SpoofDPI/main/install.sh | bash -s darwin-arm64
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# linux-amd64
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curl -fsSL https://raw.githubusercontent.com/xvzc/SpoofDPI/main/install.sh | bash -s linux-amd64
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# linux-arm
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curl -fsSL https://raw.githubusercontent.com/xvzc/SpoofDPI/main/install.sh | bash -s linux-arm
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# linux-arm64
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curl -fsSL https://raw.githubusercontent.com/xvzc/SpoofDPI/main/install.sh | bash -s linux-arm64
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# linux-mips
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curl -fsSL https://raw.githubusercontent.com/xvzc/SpoofDPI/main/install.sh | bash -s linux-mips
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# linux-mipsle
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curl -fsSL https://raw.githubusercontent.com/xvzc/SpoofDPI/main/install.sh | bash -s linux-mipsle
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```
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## Go
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You can also install SpoofDPI with `go install`
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```bash
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$ go install github.com/xvzc/SpoofDPI/cmd/spoof-dpi@latest
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```
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## Git
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You can also build your own
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```bash
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$ git clone https://github.com/xvzc/SpoofDPI.git
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$ cd SpoofDPI
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$ go build ./cmd/...
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```
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# Usage
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```
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Usage: spoof-dpi [options...]
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-addr string
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listen address (default "127.0.0.1")
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-debug
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enable debug output
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-dns-addr string
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dns address (default "8.8.8.8")
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-dns-port int
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port number for dns (default 53)
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-enable-doh
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enable 'dns-over-https'
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-no-banner
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disable banner
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-pattern value
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bypass DPI only on packets matching this regex pattern; can be given multiple times
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-port int
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port (default 8080)
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-system-proxy
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enable system-wide proxy (default true)
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-timeout int
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timeout in milliseconds; no timeout when not given
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-v print spoof-dpi's version; this may contain some other relevant information
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-window-size int
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chunk size, in number of bytes, for fragmented client hello,
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try lower values if the default value doesn't bypass the DPI;
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when not given, the client hello packet will be sent in two parts:
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fragmentation for the first data packet and the rest
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```
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> If you are using any vpn extensions such as Hotspot Shield in Chrome browser,
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go to Settings > Extensions, and disable them.
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### OSX
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Run `spoof-dpi` and it will automatically set your proxy
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### Linux
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Run `spoof-dpi` and open your favorite browser with proxy option
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```bash
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google-chrome --proxy-server="http://127.0.0.1:8080"
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```
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# How it works
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### HTTP
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Since most of websites in the world now support HTTPS, SpoofDPI doesn't bypass Deep Packet Inspections for HTTP requets, However It still serves proxy connection for all HTTP requests.
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### HTTPS
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Although TLS encrypts every handshake process, the domain names are still shown as plaintext in the Client hello packet.
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In other words, when someone else looks on the packet, they can easily guess where the packet is headed to.
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The domain name can offer a significant information while DPI is being processed, and we can actually see that the connection is blocked right after sending Client hello packet.
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I had tried some ways to bypass this, and found out that it seemed like only the first chunk gets inspected when we send the Client hello packet splited in chunks.
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What SpoofDPI does to bypass this is to send the first 1 byte of a request to the server,
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and then send the rest.
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# Inspirations
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[Green Tunnel](https://github.com/SadeghHayeri/GreenTunnel) by @SadeghHayeri
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[GoodbyeDPI](https://github.com/ValdikSS/GoodbyeDPI) by @ValdikSS
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