atp-get install python-dev
pip install mmh3
pip install requests
编写python脚本
vim icon_hash.py

import mmh3
import requests

response = requests.get(‘https://xxx.xxx.xxx/favicon.ico‘)
favicon = response.content.encode(‘base64‘)
hash = mmh3.hash(favicon)
print hash

计算目标网站的icon hash值用于搜素工具搜索