Forem: Dmitry

DC++ Clients (Java, Kotlin)

Dmitry — Wed, 02 Jan 2019 21:23:27 +0000

Hello everybody!

I've decided to train my skills in Java/Kotlin; the topic for this purpose is DC++ client, so for now I'm wondering does anybody know whether it's possible to find any information about it?

I was trying to google, but I didn't succeed, so I'd be glad if there are examples, articles, specifications!

Thanks in advance

Killing many procs at one time

Dmitry — Tue, 04 Sep 2018 11:05:07 +0000

Sometimes I have a desire to kill many processes using just one line of my BASH console. All this stuff like finding out PIDs from top or ps commands, killing them manually makes me suffer!

Deal, it has to be a shell-script in order to automate it!
First of all we got to create an empty file to put commands into it, let us do it:

touch kill-all.sh

Once the file is created we have to make it executable, easily:

chmod +x ./kill-all.sh

Now we have a script that could be run and we got to fill it with some helpful instructions:

#!/bin/bash

# Defining a proc name
proc_name=$1

# Clearing stdout
clear

# Performing killing
ps -aux | grep "$proc_name" | grep -v grep | cut -c 10-15 | xargs sudo kill -9

It's done! Now if you are going to kill many processes with same name you just need to run this quite simple instruction:

./kill-all.sh slack

It will lead you to close all the processes with name slack

Thanks for reading this article! You may follow me in order to be updated with most new articles from my side.

As usual if you have anything just let me know about it in the comments!

7zip archives under attack!

Dmitry — Mon, 03 Sep 2018 15:55:22 +0000

Notice! This article is for folks who are familiar with BASH-console a bit.
If you feel you do not realize how it works let me know in comments please!

I think that one from my mind is correct, I just need to try all those two hundred ones!

Does that remember you anything?

Sometime people face situation they do not remember the password on an archive, but at the same time they remember that is sort of simple one.

Sometime we know that the password is one of those couples in our mind, but we do not remember which exactly!
For such cases it would be good to have some mechanism or practice to find out the correct one, so that means we need to think about it and produce a solution!

In this article I will show you how an archive could be attacked using 7zip command-line interface without many efforts.

The first thing we need to think about is how many passwords we remember.
Let us say we remember ten of those, that means we need to arrange a list of those.

password
makemoneymonkey
...

Okay, let us say we have needed file and it already contains all needed passwords you could remember.
Then we have to use this file in conjunction with 7zip command-line interface.

All what we got to do in this case is just running the following script from a folder you have an archive that is going to be attacked using that dictionary.
Okay, let us see how it works in real life!

I have already prepared a script that allows us to run 7zip command-line interface against each password, check it out here:

#!/bin/bash

passwords_list="passwords-list"
archive=$1

echo "Starting attacking"

while IFS='' read -r line_data; do
    result=$(7z t $archive -p"$line_data" 2> /dev/null | grep -o "is Ok")

    if [[ $result ]]; then
        echo "Excellent! Password is $line_data"
        exit
    fi
done < $passwords_list

echo "Sorry we didn't find any appropriate password :-("

Please let me know whether this article has been helpful or not