How do I un-gzip data captured by Wireshark?

Question

I have a Wireshark capture file with a HTTP request, however, the request is gzipped.

My question is how can I ungzip it so see what data was transfered in cleartext?

The capture file is here if anyone is interested: http://datanethost.net/superuser/log.cap

For inquiring minds, it is a request from malware, but I am curious to see what it was "talking" about. I know who it was "talking" to, I just don't know what.

Answer 1

From what I can figure, the TCP packets in frames 78 through 89 appear to be encrypted, Tor communication.

^{That is quite regular for malware that does not want you to know what it calls 'home' (which is almost all Malware).}

Answer 2

This is from the Rustock botnet.