Just a command worth saving. grep -rl ‘findmatch’ filename | xargs sed -i ‘s/original/replacement/g’
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My favorite nmap commands
nmap –sT -p- -Pn 192.168.18.132 nmap –sS -p- -Pn 192.168.0.100 nmap –sUV 192.168.0.100 nmap –sX -p- -Pn 192.168.0.100 nmap –sN -p- -Pn 192.168.0.100 nmap –script vuln 192.168.18.132 nmap –script banner 192.168.18.132
Add Git Branch Name to Shell Prompt
PS1=’\[\033[0;32m\]\[\033[0m\033[0;32m\]\u\[\033[0;36m\] @ \w\[\033[0;32m\]\n$(git branch 2>/dev/null | grep “^*” | colrm 1 2)\[\033[0;32m\]??\[\033[0m\033[0;32m\] \$\[\033[0m\033[0;32m\]\[\033[0m\] ‘ Credit: https://gist.github.com/justintv/168835
Reset default MySQL root pass in Centos 7
This post is mainly for my own benefit since I lost track of the steps I followed to change the mysql default password in a Centos 7 environment. I am going to assume that you can use yum to install… Read More
Cryptography Warm Up – CTF challenge
Here is a starter problem for everyone. Since you will be using computer to break my secret code, I am giving you the encrypted message in many forms: Hex: 0x540x680x65 0x730x650x630x720x650x74 0x690x73 0x6f0x750x74 Decimal: 084104101 115101099114101116 105115 111117116 Binary: 010101000110100001100101… Read More
Steganography Example – CTF – Chicken Curry
OK, in this Steganography challenge today, I have used one of my favorite dishes – chicken curry. This image was taken in 2013 in Bluefield VA at my house. I have hidden another full image inside the chicken curry! See… Read More
Top 10 Wireshark Fileters
I found this youtube video very useful to learn some of the most common WireShark filters. tcp,port == 443 dns or http ip.addr ip.src ip.dest tcp.analysis.flags !(apr or dns or icmp) tcp contains facebook dns contains facebook http.request http.response http.response.code… Read More
Steganography – Hide and Seek – Solve it
CTF lovers, I have hidden a secret message with the image of a “tree turtle” I took almost a decade ago. See if you can solve the problem. The secret message starts with “Secret”. Now, just play some Hide and… Read More
Hash Type in Linux Password
A reference table when you review /etc/shadow file: $1$ md5 $2a$ Blowfish $2y$ Blowfish, with correct handling of 8 bit characters $5$ sha256 $6$ sha512 Just stick to sha512 please! You can change the hash setting by the file:… Read More