打开/etc/apt/sources.list
删除所有，并粘贴以下代码
#中科大kali源
deb http://mirrors.ustc.edu.cn/kali sana main non-free contrib
deb http://mirrors.ustc.edu.cn/kali-security/ sana/updates main contrib non-free
deb-src http://mirrors.ustc.edu.cn/kali-security/ sana/updates main contrib non-free
#阿里云kali源
deb http://mirrors.aliyun.com/kali sana main non-free contrib
deb http://mirrors.aliyun.com/kali-security/ sana/updates main contrib non-free
deb-src http://mirrors.aliyun.com/kali-security/ sana/updates main contrib non-free
保存即可。也可以全面升级软件。
apt-get update & apt-get upgrade
apt-get dist-upgrade
apt-get clean