Advent of Cyber Day 4 Training

TryHackMe | Advent of Cyber

With the entire incident, McElferson has been very stressed.

We need all hands on deck now

To help resolve things faster, she has asked you to help the new intern(mcsysadmin) get familiar with Linux. Access the machine via SSH on port 22 using the command

Setup

ssh mcsysadmin@[your-machines-ip]

username: mcsysadmin

password: bestelf1234

Check out the supporting material here

#1 How many visible files are there in the home directory(excluding ./ and ../)?

Copy 
18
2(ls -la)

#2 What is the content of file5 ?

Copy 
1cat file5 -> recipies

#3 Which file contains the string ‘password’?

Copy 
1grep "password" *
2file6:passwordHpKRQfdxzZocwg5O0RsiyLSVQon72CjFmsV4ZLGjxI8tXYo1NhLsEply

#4 What is the IP address in a file in the home folder?

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1grep -E -o "([0-9]{1,3}[\.]){3}[0-9]{1,3}" *
2file2:10.0.0.05

#5 How many users can log into the machine?

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1cat /etc/passwd
23 (root, and the other users)

#6 What is the sha1 hash of file8?

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1sha1sum file8
2fa67ee594358d83becdd2cb6c466b25320fd2835  file8

#7 What is mcsysadmin’s password hash?

Copy 
1cd /var/
2cat shadow.bak
3$6$jbosYsU/$qOYToX/hnKGjT0EscuUIiIqF8GHgokHdy/Rg/DaB.RgkrbeBXPdzpHdMLI6cQJLdFlS4gkBMzilDBYcQvu2ro/