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Cracking Files

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Hunting for encoded files

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Hunting for files

cry0l1t3@unixclient:~$ for ext in $(echo ".xls .xls* .xltx .csv .od* .doc .doc* .pdf .pot .pot* .pp*");do echo -e "\nFile extension: " $ext; find / -name *$ext 2>/dev/null | grep -v "lib\|fonts\|share\|core" ;done

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Hunting for SSH Keys

cry0l1t3@unixclient:~$ grep -rnw "PRIVATE KEY" /* 2>/dev/null | grep ":1"
circle-info

If ssh key has Proc-Type: 4,ENCRYPTED, then we can't use that because it is password protected

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Hunting for archives

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Download all file extensions

$ curl -s https://fileinfo.com/filetypes/compressed | html2text | awk '{print tolower($1)}' | grep "\." | tee -a compressed_ext.txt

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Cracking using john

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Cracking SSH keys

$ ssh2john.py SSH.private > ssh.hash
$ john --wordlist=rockyou.txt ssh.hash
$ john ssh.hash --show

SSH.private:1234

1 password hash cracked, 0 left

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Cracking Microsoft Office Documents

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Cracking PDFs

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Cracking ZIP

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Cracking openssl encrypted archives

  • there will be lots of false positive and might also fail finding the correct password so we must use the openssl itself

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Cracking bitlocker encrypted drives

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Mounting .vhd

https://www.linuxuprising.com/2019/04/how-to-mount-bitlocker-encrypted.htmlarrow-up-right

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