zgrab

A TLS Banner Grabber, in Go

Building

You will need to have a valid $GOPATH set up, for more information about $GOPATH, see https://golang.org/doc/code.html.

Once you have a working $GOPATH, run:

go get github.com/zmap/zgrab

This will install zgrab under $GOPATH/src/github.com/zmap/zgrab

$ cd $GOPATH/src/github.com/zmap/zgrab
$ go build

Usage

./zgrab --help

Example

$ zmap -p 443 --output-fields=* | ztee --output-file=results.csv | zgrab --port 443 --tls --data=./http-req --output-file=banners.json

Requirements

zgrab requires go version of at least 1.3.3. Please note that this is newer than the version included in Ubuntu 14.04 apt repository. You can install ztee from ZMap Github repository at https://github.com/zmap/zmap.