环境准备：
1.安装python3.7和相关的依赖
并安装redis缓存数据库
pip install aliyun-python-sdk-core
pip install aliyun-python-sdk-slb
pip intall IPy
pip intall redis
pip intall paramiko
2.添加ram访问控制的编程接口用户
3.添加slb的访问控制策略并和需要频控的slb进行绑定
redis封堵ip的格式
脚本程序目录
Aliyun_SLB_Manager
├── helpers
│ ├── common.py
│ ├── email.py
│ ├── remote.py
│ └── slb.py
├── logs
│ └── run_20210204.log
└── run.py
# 程序核心就是使用shell命令对nginx的日志中出现的ip地址 和 访问的接口进行过滤，找出访问频繁的那些程序加入slb黑名单，同时加入redis缓存，因为slb有封堵ip个数限制，redis中存储的ip需要设置过期时间，对比后删除slb中封堵的Ip
# grep 04/Feb/2021:15:4 /data/www/logs/nginx_log/access/masterapi.chinasoft.cn_access.log | grep '/api' | awk '{print $1}' | sort | uniq -c | sort -r -n | head -200
2454 114.248.45.15
1576 47.115.122.23
1569 47.107.239.148
269 112.32.217.52
grep 04/Feb/2021:14:5 /data/www/logs/nginx_log/access/masterapi.chinasoft.cn_access.log | grep '/api' | awk '{print $1}' | awk -F ':' '{print $2}' | sort | uniq -c | sort -r -n | head -200 | awk '{if ($1 >15)print $1,$2}'
[root@alisz-edraw-api-server-web01:~]# grep 04/Feb/2021:15:4 /data/www/logs/nginx_log/access/masterapi.chinasoft.cn_access.log | grep '/api' | awk '{print $1}' | sort | uniq -c | sort -r -n | head -3
2454 114.248.45.15
1576 47.115.122.23
1569 47.107.239.148
python脚本
主入口程序
run.py
import time
from helpers.email import send_mail
from helpers.remote import get_black_ips
from helpers.common import is_white_ip,get_ban_ip_time,set_ban_ip_time,groups
from helpers.slb import slb_add_host,slb_del_host,slb_get_host
if __name__ == "__main__":
# aliyun 访问控制针对 slb 的管理用户
# 用户登录名称 slb-frequency-user@xxx.onaliyun.com
accessKeyId = 'id'
accessSecret = 'pass'
# slb 访问控制策略id
acl_id = 'acl-slb'
# reginid 查询地址：https://help.aliyun.com/document_detail/40654.html?spm=a2c6h.13066369.0.0.54a17471VmN3kA
region_id = 'cn-shenzhen'
# 黑名单限制个数 300
slb_limit = 200
# 每10分钟访问限制阈值
threshold = 50
# 接收邮箱
mails = ['reblue520@chinasoft.cn']
# 远程ssh执行grep过滤出可疑ip
res = get_black_ips(threshold)
deny_host_list = res[0]
hosts_with_count = res[1]
hosts_with_count = sorted(hosts_with_count.items(), key=lambda x: x[1] , reverse=True)
print(hosts_with_count)
# exit()
# 等待被ban的ip , 过滤掉ip白名单
deny_hosts = []
for host in deny_host_list:
if (is_white_ip(host) == False):
deny_hosts.append(host + '/32')
# 获取所有已经被ban的ip
response = slb_get_host(accessKeyId , accessSecret , acl_id , region_id)
denied_hosts = []
if('AclEntrys' in response.keys()):
for item in response['AclEntrys']['AclEntry']:
denied_hosts.append(item['AclEntryIP'])
# 被ban超过2天，首先移除
must_del_hosts = []
denied_hosts_clone = denied_hosts.copy()
for host in denied_hosts:
if (get_ban_ip_time(host) == 0 or (get_ban_ip_time(host) int(round(time.time())) - 2* 24 * 3600)):
must_del_hosts.append(host)
denied_hosts_clone.remove(host)
# 排除相同的
deny_hosts_new = []
for item in deny_hosts:
if(item not in denied_hosts_clone):
deny_hosts_new.append(item)
# 两者和超过300的限制
if((len(denied_hosts_clone)+len(deny_hosts_new))>slb_limit):
denied_hosts_detail = {}
for host in denied_hosts_clone:
denied_hosts_detail[host] = get_ban_ip_time(host)
# 需要排除的数量
num = len(denied_hosts_clone) + len(deny_hosts_new) - slb_limit
denied_hosts_detail = sorted(denied_hosts_detail.items(), key=lambda x: x[1])
denied_hosts_detail = denied_hosts_detail[:num]
for item in denied_hosts_detail:
must_del_hosts.append(item[0])
print("denied:",denied_hosts)
print("delete:",must_del_hosts)
print("add:",deny_hosts_new)
# exit()
# 先删除一部分 must_del_hosts
if(len(must_del_hosts)>0):
if (len(must_del_hosts)>50):
must_del_hosts_clone = groups(must_del_hosts,50)
for item in must_del_hosts_clone:
slb_del_host(item, accessKeyId, accessSecret, acl_id, region_id)
time.sleep(1)
else :
slb_del_host(must_del_hosts, accessKeyId, accessSecret, acl_id, region_id)
# 再新增 deny_hosts_new
if(len(deny_hosts_new)>0):
if(len(deny_hosts_new)>50):
deny_hosts_new_clone = groups(deny_hosts_new,50)
for item in deny_hosts_new_clone:
slb_add_host(item, accessKeyId, accessSecret, acl_id, region_id)
time.sleep(1)
else:
slb_add_host(deny_hosts_new, accessKeyId, accessSecret, acl_id, region_id)
# 记录ip被禁时间
for host in deny_hosts_new:
set_ban_ip_time(host)
if (len(deny_hosts_new) >= 1):
mail_content = ''
if(len(must_del_hosts) > 0):
mail_content += "以下黑名单已被解禁("+str(len(must_del_hosts))+"):\n"+"\n".join(must_del_hosts) + "\n"
mail_content += "\n新增以下ip黑名单("+str(len(deny_hosts_new))+"):\n"+"\n".join(deny_hosts_new)
mail_content += "\n\n10分钟访问超过15次("+str(len(hosts_with_count))+"):\n"
for item in hosts_with_count:
mail_content += str(item[1]) + " " + str(item[0]) + "\n"
mail_content += "\n\n黑名单("+str(len(denied_hosts))+"个):\n"
for item in denied_hosts:
mail_content += str(item) + "\n"
send_mail(mail_content , mails)
slb操作相关的脚本
slb.py
import logging , json
from aliyunsdkcore.client import AcsClient
from aliyunsdkslb.request.v20140515.AddAccessControlListEntryRequest import AddAccessControlListEntryRequest
from aliyunsdkslb.request.v20140515.RemoveAccessControlListEntryRequest import RemoveAccessControlListEntryRequest
from aliyunsdkslb.request.v20140515.DescribeAccessControlListAttributeRequest import DescribeAccessControlListAttributeRequest
# 阿里云slb访问控制里添加ip
def slb_add_host(hosts, accessKeyId, accessSecret, acl_id, region_id):
client = AcsClient(accessKeyId, accessSecret, region_id)
request = AddAccessControlListEntryRequest()
request.set_accept_format('json')
logging.info("正在封印IP：%s" % ",".join(hosts))
try:
add_hosts = []
for host in hosts:
add_hosts.append({"entry": host, "comment": "deny"})
request.set_AclEntrys(add_hosts)
request.set_AclId(acl_id)
response = client.do_action_with_exception(request)
print(response)
except BaseException as e:
logging.error("添加黑名单失败，原因：%s" % e)
# slb删除ip
def slb_del_host(hosts, accessKeyId, accessSecret, acl_id , region_id = 'us-west-1'):
logging.info("正在解封IP：%s" % ",".join(hosts))
try:
del_hosts = []
for host in hosts:
del_hosts.append({"entry": host, "comment": "deny"})
client = AcsClient(accessKeyId, accessSecret, region_id)
request = RemoveAccessControlListEntryRequest()
request.set_accept_format('json')
request.set_AclEntrys(del_hosts)
request.set_AclId(acl_id)
client.do_action_with_exception(request)
logging.info("slb删除IP:%s成功" % ",".join(hosts)) # 查看调用接口结果
logging.info("slb删除IP:%s成功" % ",".join(hosts)) # 查看调用接口结果
except BaseException as e:
logging.error("移出黑名单失败，原因：%s" % e)
# 阿里云slb获取IP黑名单列表
def slb_get_host(accessKeyId, accessSecret, acl_id, region_id):
client = AcsClient(accessKeyId, accessSecret, region_id)
request = DescribeAccessControlListAttributeRequest()
request.set_accept_format('json')
try:
request.set_AclId(acl_id)
response = client.do_action_with_exception(request)
data_sub = json.loads((response.decode("utf-8")))
return data_sub
except BaseException as e:
logging.error("获取黑名单失败，原因：%s" % e)
远程操作日志的脚本
remote.py
#!/usr/bin/python
# -*- coding: UTF-8 -*-
import datetime
import re
import paramiko
def get_black_ips(threshold = 100):
# file = '/data/www/logs/nginx_log/access/*api*_access.log'
file = '/data/www/logs/nginx_log/access/masterapi.chinasoft.cn_access.log'
# 可以 ssh 访问服务器 nginx 日志的用户信息
username = 'apache'
passwd = 'pass'
ten_min_time = (datetime.datetime.now() - datetime.timedelta(minutes=10)).strftime("%d/%b/%Y:%H:%M")
ten_min_time = ten_min_time[:-1]
# 线上 需要对日志进行过滤的目标服务器，一般是内网ip，本地调试时可以直接使用外网ip方便调试
ssh_hosts = ['1.1.1.1']
deny_host_list = []
for host in ssh_hosts:
'''
# 过滤日志文件，需要显示如下效果，次数 ip地址,需要定位具体的api接口，否则误伤率极高
# grep 04/Feb/2021:15:2 /data/www/logs/nginx_log/access/masterapi.chinasoft.cn_access.log | grep '/api' | awk '{print $1}' | sort | uniq -c | sort -r -n | head -5 | awk '{if ($1 >15)print $1,$2}'
2998 116.248.89.2
2381 114.248.45.15
1639 47.107.239.148
1580 47.115.122.23
245 59.109.149.45
'''
shell = (
# "grep %s %s | grep '/index.php?submod=checkoutmethod=indexpid' | awk '{print $1}' | awk -F ':' '{print $2}' | sort | uniq -c | sort -r -n | head -200 | awk '{if ($1 >15)print $1,$2}'") % (
# grep 04/Feb/2021:14:5 /data/www/logs/nginx_log/access/masterapi.chinasoft.cn_access.log | grep '/api/user' | awk '{print $1}' | awk -F ':' '{print $2}' | sort | uniq -c | sort -r -n | head -200 | awk '{if ($1 >15)print $1,$2}'
"grep %s %s | grep '/api' | awk '{print $1}' | sort | uniq -c | sort -r -n | head -200 | awk '{if ($1 >2000)print $1,$2}'") % (
ten_min_time, file)
print(shell)
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(host, port=2020, username=username, password=passwd)
stdin, stdout, stderr = ssh.exec_command(shell)
result = stdout.read().decode(encoding="utf-8")
deny_host_re = re.compile(r'\d{1,99} \d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}')
deny_host_re = deny_host_re.findall(result)
deny_host_list = deny_host_list + deny_host_re
uniq_host = {}
for host_str in deny_host_list:
tmp = host_str.split(' ')
if tmp[1] in uniq_host:
uniq_host[tmp[1]] += int(tmp[0])
else:
uniq_host[tmp[1]] = int(tmp[0])
deny_host_list = []
for v in uniq_host:
if (uniq_host[v] > threshold):
deny_host_list.append(v)
return [deny_host_list , uniq_host]
发送邮件的脚本
email.py
#!/usr/bin/python
# -*- coding: UTF-8 -*-
import smtplib
from email.mime.text import MIMEText
from email.header import Header
import logging
def send_mail(host , receivers):
# 发送邮件的服务器，用户信息
mail_host = "smtpdm-ap-southeast-1.aliyun.com"
mail_user = "admin@mail.chinasoft.com"
mail_pass = "pass"
sender = 'admin@mail.chinasoft.com'
message = MIMEText('chinasoft国内接口被刷,单个IP最近10分钟内访问超过阈值100次会收到此邮件告警!!!!\n%s' % (host), 'plain', 'utf-8')
message['From'] = Header("chinasoft国内接口被刷", 'utf-8')
subject ='[DDOS]购买链接接口异常链接!!'
message['Subject'] = Header(subject, 'utf-8')
try:
smtpObj = smtplib.SMTP(mail_host, 80)
smtpObj.login(mail_user, mail_pass)
smtpObj.sendmail(sender, receivers, message.as_string())
logging.info("邮件发送成功")
except smtplib.SMTPException as e:
logging.error("发送邮件失败，原因：%s" % e)
配置文件
common.py
#!/usr/bin/python
# -*- coding: UTF-8 -*-
import IPy
from functools import reduce
import redis,time
def groups(L1,len1):
groups=zip(*(iter(L1),)*len1)
L2=[list(i) for i in groups]
n=len(L1) % len1
L2.append(L1[-n:]) if n !=0 else L2
return L2
def ip_into_int(ip):
return reduce(lambda x, y: (x 8) + y, map(int, ip.split('.')))
# 过滤掉内网ip
def is_internal_ip(ip):
ip = ip_into_int(ip)
net_a = ip_into_int('10.255.255.255') >> 24
net_b = ip_into_int('172.31.255.255') >> 20
net_c = ip_into_int('192.168.255.255') >> 16
return ip >> 24 == net_a or ip >> 20 == net_b or ip >> 16 == net_c
# 是否为白名单ip （公司内网+集群内网ip+slb和需要互访的服务器ip避免误杀）
def is_white_ip(ip):
if (is_internal_ip(ip)):
return True
white_hosts = [
# web-servers
'1.1.1.1',
'1.1.1.2',
];
for white in white_hosts:
if (ip in IPy.IP(white)):
return True
return False
def get_ban_ip_time(ip):
pool = redis.ConnectionPool(host='127.0.0.1', port=6379, db=1)
client = redis.Redis(connection_pool=pool)
key = 'slb_ban_'+ip
val = client.get(key)
if val == None:
return 0
else :
return int(val)
def set_ban_ip_time(ip):
pool = redis.ConnectionPool(host='127.0.0.1', port=6379, db=1)
client = redis.Redis(connection_pool=pool)
key = 'slb_ban_'+ip
timestamp = time.time()
timestamp = int(round(timestamp))
return client.set(key , timestamp , 86400)
本地可以直接运行run.py进行调试
到此这篇关于python脚本使用阿里云slb对恶意攻击进行封堵的实现的文章就介绍到这了,更多相关python脚本阿里云slb内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！
您可能感兴趣的文章:- 利用Python+阿里云实现DDNS动态域名解析的方法
- 阿里云 CentOS7.4 安装 Python3.6的方法讲解
- Python3编程实现获取阿里云ECS实例及监控的方法
- 在阿里云服务器上配置CentOS+Nginx+Python+Flask环境
