root@vitor-hp:~# apt-get install cowpatty
Reading package lists ... ready
Building dependency tree
Reading state information ... ready
E: Could not find package cowpatty
root@vitor-hp:~#

sudo apt-get install libpcap-dev libssl-dev
cd ~
wget http://pkgs.fedoraproject.org/repo/pkgs/cowpatty/cowpatty-4.6.tgz/b90fd36ad987c99e7cc1d2a05a565cbd/cowpatty-4.6.tgz
tar zxfv cowpatty-4.6.tgz
cd cowpatty-4.6/
make
sudo cp cowpatty /usr/bin
cd ~

cd ~
wget http://www.willhackforsushi.com/code/cowpatty/4.6/cowpatty-4.6.tgz
tar zxfv cowpatty-4.6.tgz
cd cowpatty-4.6
make cowpatty
sudo cp cowpatty /usr/bin

deb http://http.kali.org/kali kali-rolling main non-free contrib

apt-get install libssl-dev

apt-get install libpcap0.8-dev