Linux -- 应急响应

#!/usr/bin/python# -*- coding: utf-8 -*-
import osimport sysimport re
TRUST_USER = ['root','piaox']TRUST_IP =['10.0.211.71']FILE_PATH=['/var/www/html','/tmp','/var/tmp','/home']FILE_LIST =[]ACCESS_LOG = '/var/log/httpd/access_log'php_Features_list = ['(\$_(?:GET|POST|REQUEST)\[.*?](\s|\n)*\((\s|\n)*\$_(?:GET|POST|REQUEST)\[.*?\](\s|\n)*\))','(?:base64_decode)\([\'"][\w\+/=]{200,}[\'"]\)','function\_exists\s*\(\s*[\'"](popen|exec|proc\_open|system|passthru)+[\'"]\s*\)','@?(eval\_?r?|assert|include|require|include\_once|require\_once|array\_map|array\_walk)+\s*\(\s*\$\_(GET|POST|REQUEST|COOKIE|SERVER|SESSION)+\[?(.*)\]?\s*\)','eval\s*\(\s*\(\s*\$\$(\w+)','(\$[\w_]{0,15}(\s|\n)*\((\s|\n)*\$_(?:POST|GET|REQUEST)\[.*?\](\s|\n)*\))','(ReDuh|silic)','(?:call_user_func)(\s|\n)*\(.{0,15}\$_(?:GET|POST|REQUEST)','(?:wscript)\.(?:shell)','(?:cmd)\.(?:exe)','(?:shell)\.(?:application)','(?:documents)\s+(?:and)\s+(?:settings)','(?:system32)','(?:serv\-u)','(?:phpspy)','(?:webshell)','(?:Program)\s+(?:Files)','(?:include|require)(?:_once)?\s*["\']?\(?\s*\$?\w+["\']?\)?\s*\;?','ec38fe2a8497e0a8d6d349b3533038cb|88f078ec861a3e4baeb858e1b4308ef0|7Zt/TBNnGMfflrqBFnaes|\\x50\\x4b\\x05\\x06\\x00\\x00\\x00\\x00|9c3a9720372fdfac053882f578e65846|silic1234','((udp|tcp)\://(.*)\;)+','preg\_replace\s*\((.*)/e(.*)\,\s*\$\_\[?(.*)\]?\,(.*)\)','preg\_replace\s*\((.*)\(base64\_decode\(\$','.*?\$\_\w+.*?@?preg_replace\(("|\').*?/e("|\'),.*?,.*?\)','(eval|assert|include|require|include\_once|require\_once)+\s*\(\s*(base64\_decode|str\_rot13|gz(\w+)|file\_(\w+)\_contents|(.*)php\://input)+','(include|require|include\_once|require\_once)+\s*\(\s*[\'"](\w+)\.(jpg|gif|ico|bmp|png|txt|zip|rar|htm|css|js)+[\'"]\s*\)','\$\_(\w+)\s*=?\s*(eval|assert|include|require|include\_once|require\_once)+\s*\(\s*\$(\w+)\s*\)','\(\s*\$\_FILES\[(.*)\]\[(.*)\]\s*\,\s*\$\_(GET|POST|REQUEST|FILES)+\[(.*)\]\[(.*)\]\s*\)','(fopen|fwrite|fputs|file\_put\_contents)+\s*\((.*)\$\_(GET|POST|REQUEST|COOKIE|SERVER)+\[(.*)\](.*)\)','(fopen|fwrite|fputs|file\_put\_contents)+\s*\(\$\_(GET|POST|REQUEST|COOKIE|SERVER)+\[(.*)\](.*)\)','echo\s*curl\_exec\s*\(\s*\$(\w+)\s*\)','new com\s*\(\s*[\'"]shell(.*)[\'"]\s*\)','\$(.*)\s*\((.*)\/e(.*)\,\s*\$\_(.*)\,(.*)\)','\$\_\=(.*)\$\_','\$\_(GET|POST|REQUEST|COOKIE|SERVER)+\[(.*)\]\(\s*\$(.*)\)','\$(\w+)\s*\(\s*\$\_(GET|POST|REQUEST|COOKIE|SERVER)+\[(.*)\]\s*\)','\$(\w+)\s*\(\s*\$\{(.*)\}','\$(\w+)\s*\(\s*chr\(\d+\)','\$\w*\s*\=\s*\$\_(GET|POST|REQUEST|COOKIE|SERVER|SESSION)\[.*?\]\;\s*include\s+\(\s*\$(.*?)\s*\)\;','\$\w+\s*\=\s*\$\_\w+\[.*?\]\;\s*@eval\(.*?\)','\$\w+\s*\=\s*base64_decode\(\$\_\w+\[(.*?)\]\);\s*@eval\(.*?\)','\$\_\w+\[.*?\]\s*\(\s*\$\_\w+\[.*?\]\s*\)\;','\(\$\_\=@\$\_\w+\[.*?\]\s*\)\.@\$\_\(\$\_\w+\[.*?\]\s*\)','\$\_\w+\[.*?\]\s*\(\s*\$\_\w+\[.*?\]\s*,\$\_\w+\[.*?\]\)','\$\{\'\_\'.\$\_}\[\'\_\'\]\(\$\{\'\_\'.\$\_\}\[\'\_\_\'\]\)\;','\_\_angel\_1111111111\_eof\_\_','xx.php\?pwd=e','687474703a2f2f377368656c6c2e676f6f676c65636f64652e636f6d2f73766e2f6d616b652e6a7067','Changed by pnkoo.cn|Jakub Vrana|blackbap.org|Code By isosky|16jTwyAtIHBocCZNeVNRTMr9vt2/4rG4t925pL7fIC0g']
asp_Features_list = ['(?:eval|execute)(\s|\n)*(?:request)(\s|\n)*\((\s|\n)*(.*?)(\s|\n)*\)','(?:eval)(\s|\n)*\((\s|\n)*(?:Request)(\s|\n)*\.(\s|\n)*(?:Item)(\s|\n)*\[(\s|\n)*(.*?)(\s|\n)*\]','(?:ExecuteStatement)\(.*?request','FromBase64String\("UmVxdWVzdC5JdGVtWyJ6Il0="\)','tseuqer\s*lave.*','Request.form(.*)eval(.*)','(.*)eval','reDuh(.*)','PublicKeyToken\=B03F5F7F11D50A3A','20132165414621325641311254123112512','#@~\^oHMBAA==@#@&@#@&"\+kwW','(Client/Login\.xml\?Command=Login&Sync=1227081437828)|(因为serv-u的userid变化我搞不懂)','aspmuma|(免杀去后门版\s*by\s*UnKnown)','芝麻开门|F4ck|1c1f81a8b0a630f530f52fa9aa9dda1b|法客论坛|F4ckTeam','silicname|silicpass|命令行执行','server.mappath\("go.asp"\)','MSSQL语句执行工具','gif89a(\s|\n)*<%@?','UJ@!z\(G9X@\*@!z4Y:\^@\*ryglpAA==\^#~@','clsid:72C24DD5-D70A-438B-8A42-98424B88AFB8','WebSniff(.*?)Powered\s*by','11\.asp','mssql导库|闪电小子|\_tysan|MYSQL Manager','#@~\^bGsBAA==@#@&AC13`DV{J@!8D@\*@!8D@\*@!\^n']
jsp_Features_list = ['reDuh','没有权限执行该操作','(chopper|QQ\(cs,z1,z2,sb\)|caicaihk|Alanwalker|(by\s*n1nty)|(Code\s*By\s*Ninty)|JspSpyPwd|JspSpy|6625108|(charles\s*QQ\s*77707777))','((21,25,80,110,1433,1723,3306,3389,4899,5631,43958,65500)|(192.168.230.1\s*4444))','1decc1ce886d1b2f9f91ecb39967832d05f8e8b8','JFolder\.jsp|Steven\s*Cee|JFileMan\.jsp|hack520\s*by|mailto\:hack520@77169\.org|by\s*Bagheera|luoluonet|Recoding\s*by\s*Juliet|lovehacker|webshell\.jsp|Hacker|jsp\s*File\s*Browser|jshell|ceshi2009']
other_Features_list = ['System32\\cmd\.exe|cmd|CFM\s*shell','俺的门门','Gamma Web Shell']
attack__Features_list = {"\.\./":"目录穿越攻击","select.+(from|limit)":"SQL注入攻击","(?:(union(.*?)select))":"SQL注入攻击","having|rongjitest":"SQL注入攻击","sleep\((\s*)(\d*)(\s*)\)":"SQL注入攻击","benchmark\((.*)\,(.*)\)":"SQL注入攻击","base64_decode\(":"SQL注入攻击","(?:from\W+information_schema\W)":"SQL注入攻击","(?:(?:current_)user|database|schema|connection_id)\s*\(":"SQL注入攻击","(?:etc\/\W*passwd)":"敏感文件操作","into(\s+)+(?:dump|out)file\s*":"SQL注入攻击","group\s+by.+\(":"SQL注入攻击","xwork.MethodAccessor":"命令注入攻击","xwork\.MethodAccessor":"命令注入攻击","(gopher|doc|php|glob|file|phar|zlib|ftp|ldap|dict|ogg|data)\:\/":"敏感文件操作","\<(iframe|script|body|img|layer|div|meta|style|base|object|input)":"XSS跨站脚本","(alert|confirm|prompt)":"XSS跨站脚本","(onmouseover|onerror|onload)\=":"XSS跨站脚本","java\.lang":"命令注入攻击","\.(svn|htaccess|bash_history)":"敏感文件访问","\.(bak|inc|old|mdb|sql|backup|java|class)$":"敏感文件访问","(vhost|bbs|host|wwwroot|www|site|root|hytop|flashfxp).*\.rar":"敏感文件访问","(phpmyadmin|jmx-console|jmxinvokerservlet)":"管理控制台探测行为","/(attachments|upimg|images|css|uploadfiles|html|uploads|templets|static|template|data|inc|forumdata|upload|includes|cache|avatar)/(\\w+).(php|jsp)":"敏感文件访问","(HTTrack|harvest|audit|dirbuster|pangolin|nmap|sqln|-scan|hydra|Parser|libwww|BBBike|sqlmap|w3af|owasp|Nikto|fimap|havij|PycURL|zmeu|BabyKrokodil|netsparker|httperf|bench| SF/)":"Web扫描器扫描"}
def Un_worktime_login(localday):if os.popen("last |grep -v 'reboot' |grep " + "'" + localday.strip() + "'" + "|awk '($7>=\"12:00\" && $7<=\"14:00\") || ($7>=\"00:00\" && $7<=\"06:00\")'").readlines():print '[+] Un_worktime_login ------------------------------------ [ DONE ]'for bb in os.popen("last |grep -v 'reboot' |grep " + "'" + localday.strip() + "'" + "|awk '($7>=\"12:00\" && $7<=\"14:00\") || ($7>=\"00:00\" && $7<=\"06:00\")'").readlines():print bb.strip()return Trueelse:return False
def Faild_user(localday):print '\n[+] Faild_user ------------------------------------ [ DONE ]'os.system("egrep '(new user: name=)|(Failed password for)' /var/log/secure*|grep " + "'" + localday + "'")
def Un_trust_user():all_user = os.popen("grep '/bin/bash' /etc/passwd | awk -F ':' '{print $1}'").readlines()print '\n[+] Un_trust_user ------------------------------------ [ DONE ]'for l in all_user:if l.strip() not in TRUST_USER:os.system("grep "+l.strip()+" /etc/passwd")
def Dubious_netstat():print '\n[+] Dubious_netstat ------------------------------------ [ DONE ]'for ip in TRUST_IP:os.system("netstat -antp|egrep -v ':::*' |egrep 'ESTABLISHED|LISTEN'|awk '$5 !~ /"+ip.strip()+"/' | awk '$5 ~/:(21|22|443|80|8080|7001|8443|9080)$/{print}'")
def Dubious_files(filepath):for f in os.listdir(filepath):path = os.path.join(filepath, f)if os.path.isfile(path):FILE_LIST.append(path)if os.path.isdir(path):Dubious_files(path)
def Webshell_detect(filename,rulename):f1 = open(filename).read()for rule in rulename:result = re.compile(rule).findall(f1)if result:print "============================================"print 'Risk file:' + filenameprint 'Risk code：' + str(result[0])os.system("stat " +str(filename)+ " |grep 'Modify'")
def Attack_analysis():f2 = open(ACCESS_LOG).readlines()print "\n[+] Attack_analysis ------------------------------------ [ DONE ]"for line in f2:for r in attack__Features_list:result = re.compile(r).findall(line)if result:print '匹配特征：' + '[' + str(result[0]) + ']' + '===>' + line.strip()print '攻击类型:' + '[' + attack__Features_list[r] + ']'
if __name__=='__main__':localday = os.popen("env LANG=en_US.UTF-8 date |awk '{print $2,$3}'").readline().strip()Un_worktime_login(localday)Faild_user(localday)Un_trust_user()Dubious_netstat()for file in FILE_PATH:Dubious_files(file.strip())print '\n[+] Webshell_detect ------------------------------------ [ DONE ]'for f in FILE_LIST:if str(f).lower().endswith(".php"):Webshell_detect(f, php_Features_list)elif str(f).lower().endswith(".jsp"):Webshell_detect(f, jsp_Features_list)elif str(f).lower().endswith(".aspx"):Webshell_detect(f, asp_Features_list)Attack_analysis()