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Cybersecurity, Technology, and CTFs

Ai


THAT PATH TO AI: #8 HACKING AI WITH ADV MACHINE LEARNING

Adversarial machine learning Adversarial machine learning exploits how
artificial intelligence algorithms work to disrupt the conduct of artificial
intelligence algorithms. In the past years, adversarial machine learning has
become an active zone of research as the job of AI continues to grow in vast
numbers of the applications we use.

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fr33s0ul Nov 21, 2020 • 3 min read
Ai


THAT PATH TO AI: #7 CNNS, RNNS, FEATURE ENG ML / IMPUTAXON

Convolutional Neural Networks (CNNs) A Convolutional Neural Networks (CNNs) is a
Deep Learning algorithm which can take in an input picture, appoint significance
(learnable weights and biases) to different articles in the image and have the
option to separate one from the other. The pre-processing required in a CNNs; it

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fr33s0ul Nov 21, 2020 • 3 min read
Ai


THAT PATH TO AI: #6 DIMENSIONALITY REDUCTION / AND ENS LEARNING TO IMPROVE
CLASSIFI...

Dimensionality reduction is a set of machine learning-based indicative models.
They are useful to execute data manipulation; it decreases the dimensionality of
a dataset. It is instrumental in cases where the issue becomes intractable, and
the quantity of variables increases, then dimensionality reduction leads to
choosing significant variables. Low variance

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fr33s0ul Nov 21, 2020 • 4 min read
Ai


THAT PATH TO AI: #5 PERFORMANCE EVALUATION

Now that we covered a fair amount of the components and instruments involving in
the AI systems, it is the time to talk a little about performance evaluation and
its importance. Performance evaluation is an essential step in a methodological
operation. Because after finishing the whole machine learning model, testing

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fr33s0ul Nov 21, 2020 • 3 min read
Ai


THAT PATH TO AI: #4 ANN AND ACTIVATION FUNCTIONS

Artificial neural networks Artificial neural networks are one of the trending
topics in nowadays, Applications based on this type of technology imitate the
sophisticated functionality of the human brain, where neurons process
information in parallel. Researchers have successfully proved the concept by
creating prototypes and successful models, for example, pattern

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fr33s0ul Nov 21, 2020 • 5 min read
Ai


THAT PATH TO AI: #3 THE OTHERS

Unsupervised learning The distinction in unsupervised learning from supervised
learning, as it may have surmised the data will not contain any labels, and the
module should attempt prospects and learn without a teacher. Semi-supervised
learning The semi-supervised learning algorithm is a combination of supervised
learning and unsupervised. The algorithms run

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fr33s0ul Nov 21, 2020 • 2 min read
Ai


THAT PATH TO AI: #2 SUPERVISED LEARNING

It is a type of machine learning algorithms that learns from a provided
input/output data to predict an un-provided output from the same form of input
data in training. Supervised learning is often in our daily life, for example,
the algorithm that indicates how much time a driver will

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fr33s0ul Nov 21, 2020 • 2 min read
Ai


THAT PATH TO AI: #1 INTRO TO THE FANCY NORMAL SCIENCE.

Cybersecurity field grew so fast that now the industry needs many cybersecurity
professionals to defend and patch issues in networks and web applications before
cybercriminals attempt to do it. Still, thankfully we have nowadays a lot of
conferences and many people working together to make the internet a better
internet.

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fr33s0ul Nov 21, 2020 • 5 min read
CTF


YEAROFTHERABBIT | CTF WRITE-UP

TryHackMe | Year of the RabbitTime to enter the warren...TryHackMeHello
everyone, Today's challenge is full of surprises and I would suggest you be
patient while doing it, and make sure not to get into the rabbit holes, this
challenge is made by MuirlandOracle. Hope you enjoy this write-up let's get

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fr33s0ul Apr 22, 2020 • 9 min read
CTF


DOGCAT | THM WRITE-UP

Hello everyone, Today's CTF is very special made by Jammy a user in Tryhackme.
Trust me even if this box is rated medium difficulty, You'll need to think a lot
and be very patient. I guarantee you if you try hard in this challenge you'll
learn a lot about LFI

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fr33s0ul Apr 19, 2020 • 6 min read
CTF


LOCAL FILE INCLUSION | WRITE-UP

Hello everyone, here's a quick write-up about LFI that I really recommend for
people just starting in the field. It's created by a user called falconfeast
feel free to visit his room. TryHackMe | Hacking TrainingAn online platform for
learning and teaching cyber security, all through your
browser.TryHackMeEnumeration root@kali:

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fr33s0ul Apr 17, 2020 • 6 min read
CTF


ATTACKTIVE DIRECTORY | THM WRITE-UP

Hello world! today's challenge is very unique, we will go through the steps to
exploit an active directory. The challenge is designed by a user called Sp00ky.
in my opinion, anyone who wants to get close to active directory exploitation
this is the one for you, the amount of knowledge

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fr33s0ul Apr 17, 2020 • 23 min read
CTF


THECODCAPER CTF | WRITE-UP

Hello everyone, today's CTF is so impressive, not rated yet but from my little
experience I can tell there's no easy or hard challenge, it's all about how
out-of-the-box can you think. but no worries this one does have hints and the
techniques are provided with the questioner. anyways! hope

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fr33s0ul Apr 14, 2020 • 9 min read
CTF


BEBOP | DRONE LOVERS CTF

Hello everyone, Today's CTF is available at www.Tryhackme.com rated as an easy
challenge so it won't be hard for someone just starting in the field, the
concept is based on the Parrot Bebop drone and brings a huge inspiration of the
memory of the DEFCON 23 speech "Knocking

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fr33s0ul Apr 13, 2020 • 3 min read
CTF


JACK-OF-ALL-TRADES TRYHACKME | WRITE-UP

Hello everyone, today's machine is so fun to break, I enjoyed every step I
practised, Jack-of-All-Trades CTF challenge box was created for the Securi-Tay
conference run on the 28th of February, 2020 by the Hacksoc. Let's start with
some enumeration! root@kali:~# nmap -sC -sV 10.10.37.180 Starting

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fr33s0ul Apr 12, 2020 • 5 min read
CTF


BLUEPRINT TRYHACKME | WRITE-UP

Hello everyone, today's challenge is really fun! rated as easy, and we get no
hints or instruction, only one question as a note: "Do you have what is takes to
hack into this Windows Machine?" ENUMERATION TIMEroot@kali:~# nmap -sC -sV
10.10.41.176 Starting Nmap 7.80 ( https:

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fr33s0ul Apr 11, 2020 • 5 min read
CTF


INCLUSION | CTF WRITE-UP

today's CTF is really easy, and really recommend it for beginners to CTFs, let's
go straight to it ENUMERATION! root@kali:~# nmap -sC -sV 10.10.94.6 Starting
Nmap 7.80 ( https://nmap.org ) at 2020-04-10 14:38 UTC Nmap scan report for
ip-10-10-94-6.eu-west-1.compute.internal (10.10.

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fr33s0ul Apr 10, 2020 • 3 min read
CTF


CTFCOLLECTIONVOL2 | WRITE-UP

Hello everyone, today's CTF is the second part of a first one, it doesn't mean
you need to do the first one to pass to the second. this CTF is rated as a
medium when it comes to difficulty, but trust me it doesn't matter. less talking
more doing ... let's

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fr33s0ul Apr 9, 2020 • 8 min read
CTF


JOCKERCTF | WRITE-UP

Hello world, I hope you are all well and safe home from the pandemic, today's
challenge is a CTF by Tryhackme it's rated medium, but still it needs focus and
trying the right techniques, or you'll just dive in a rabbit hole. Let's get
started with some enumeration ... root@kali:

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fr33s0ul Apr 7, 2020 • 8 min read
CTF


KENOBI | CTF WRITE-UP

today's CTF we will cover a Kenobi made by www.tryhackme.com the theme of the
machine is star-wars  ... Let's enumerate this machine and see what we're
dealing with root@kali:~# nmap -sC -sV 10.10.68.87 Starting Nmap 7.80 (
https://nmap.org ) at 2020-04-07 11:36 UTC

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fr33s0ul Apr 7, 2020 • 9 min read
CTF


TOOLSRUS CTF | WRITE-UP

Hello all, today's challenge is made by Tryhackme.com, it's a fun CTF ratted as
easy, totally straight forward. Let's enumerate the machine root@kali:~# nmap
-sC -sV 10.10.27.83 Starting Nmap 7.80 ( https://nmap.org ) at 2020-04-03 13:36
UTC Nmap scan report for ip-10-10-27-83.eu-west-1.

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fr33s0ul Apr 3, 2020 • 6 min read
CTF


RETRO | WRITE-UP

Hello everyone, today's CTF is provided by tryhackme.com and made by
Darkstar7471 it is a web server based on windows, before we start enumerating
the machine we have to take in consideration the note we got, which is we won't
get any response for any ping request, nmap does

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fr33s0ul Apr 3, 2020 • 4 min read
CTF


PICKLE RICK CTF | WRITE-UP

Hello again, today we'll cover another CTF made by Tryhackme.com such a cool box
I enjoyed every second of it, I hope you do and let's start our challenge with
some enumeration. nmap -sC -sV <target-machine>it looks like we don't have much
to break, two ports.

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fr33s0ul Apr 2, 2020 • 3 min read
CTF


CHERRYBLOSSOM CTF | WRITE-UP

Hello all, this is my first write-up at this page If you see anything not right
or have any corrections I would be very happy getting some feedback, anyways
let's start our write-up, Today we'll review a CTF challenge on TryHackme
CherryBlossom. This challenge is rated hard and it focuses

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fr33s0ul Apr 1, 2020 • 5 min read
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