本文讲述了一个python查找 webshell脚本的代码,除了查找webshell功能之外还具有白名单功能,以及发现恶意代码发送邮件报警等功能,感兴趣的朋友可以自己测试一下看看效果。
#!/usr/bin/env python #-*- coding: utf-8 -*- import os import sys import re import smtplib #设定邮件 fromaddr = "smtp.qq.com" toaddrs = ["voilet@qq.com"] username = "voilet" password = "xxxxxx" #设置白名单 pass_file = ["api_ucenter.PHP"] #定义发送邮件函数 def sendmail(toaddrs,sub,content): '发送邮件模块' # Add the From: and To: headers at the start! msg = ("From: %s\r\nTo: %s\r\nSubject: %s\r\n\r\n" % (fromaddr,",".join(toaddrs),sub)) msg += content server = smtplib.SMTP('mail.funshion.com',25,) server.login(username,password) server.sendmail(fromaddr,toaddrs,msg) server.quit() #设置搜索特征码 rulelist = [ '(\$_(GET|POST|REQUEST)\[.{0,15}\]\(\$_(GET|POST|REQUEST)\[.{0,15}\]\))','(base64_decode\([\'"][\w\+/=]{200,}[\'"]\))','eval\(base64_decode\(','(eval\(\$_(POST|GET|REQUEST)\[.{0,'(assert\(\$_(POST|GET|REQUEST)\[.{0,'(\$[\w_]{0,15}\(\$_(POST|GET|REQUEST)\[.{0,'(wscript\.shell)','(gethostbyname\()','(cmd\.exe)','(shell\.application)','(documents\s+and\s+settings)','(system32)','(serv-u)','(提权)','(PHPspy)','(后门)','(webshell)','(Program\s+Files)','www.PHPdp.com','PHPdp','PHP神盾','decryption','Ca3tie1','GIF89a','IKFBILUvM0VCJD\/APDolOjtW0tgeKAwA','\'e\'\.\'v\'\.\'a\'\.\'l\'',] def Scan(path): for root,dirs,files in os.walk(path): for filespath in files: isover = False if '.' in filespath: ext = filespath[(filespath.rindex('.')+1):] if ext=='PHP' and filespath not in pass_file: file= open(os.path.join(root,filespath)) filestr = file.read() file.close() for rule in rulelist: result = re.compile(rule).findall(filestr) if result: print '文件:'+os.path.join(root,filespath) print '恶意代码:'+str(result[0]) print '\n\n' sendmail(toaddrs,"增值发现恶意代码",'文件:'+os.path.join(root,filespath)+"\n" + '恶意代码:'+str(result[0])) break try: if os.path.lexists("/home/web_root/"): print('\n\n开始扫描:'+ "/home/web_root/") print(' 可疑文件 ') print('########################################') Scan("/home/web_root/") print('提示:扫描完成--~') else: print '提示:指定的扫描目录不存在--- ' except IndexError: print "请指定扫描文件目录"
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