南强小屋 Design By 杰米
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"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") % (
# 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
南强小屋 Design By 杰米
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南强小屋 Design By 杰米
暂无python脚本使用阿里云slb对恶意攻击进行封堵的实现的评论...
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