ProxyStrike is an active Web Application Proxy and is a tool designed to find vulnerabilities while browsing an application. It current has SQL injection and cross site scripting modules. This is the Windows version. Written in Python.
You can download it from the following link: https://packetstormsecurity.com/files/download/65053/proxystrike-v1.0.zip
Source: https://packetstormsecurity.com/files/65053/proxystrike-v1.0.zip.html