Most people who are programmers or other technical people started their serious journey as a computer guru by trying to hack something. The game or the site - it doesn't really matter. Also, a small warning - this information is located here for informational purposes only and its use and application in practice is strongly discouraged. Also, to avoid negative consequences, everything will be described in general terms without specifics, such as program names or detailed hacking algorithms. And in the end, it will be considered how to hack the server to the admin panel.
So how do servers get hacked? The very first step in any strategy is port scanning. This is done to find out what software is installed. Each open port is a server program. Example: FTP is on port 21. If you connect to it and get the appropriate rights, you can safely download or upload any files. First of all, you need to scan the first 1024 ports. Here you can find many standard services. Each of them is a kind of door. And the more there are, the easier it will be to find that one orseveral of them are not closed. To a large extent, it all depends on the computer skills of the administrator who looks after the server. The received information about weaknesses should be recorded on an autonomous medium (a sheet of paper or a tablet).
Next, check everything above port 1024. Why? The fact is that the programs that are on them may have vulnerabilities or someone may have trojaned the server before. And malware always keeps its “door” open. Next, find out the operating system. Oh yes, and if you decide to hack something, then it is advisable to destroy all the recorded data before our valiant police find you. This information is enough to carry out the simplest hack. In addition, there are many sites on the Internet where information about new weaknesses is published. And given that many of the servers do not update their security due to the negligence or lack of qualifications of administrators, many of them can be hacked due to “old” problems. You can find them with the help of special programs. But if everything is closed and there is not a single approach (which is unlikely), then wait for publications about new security holes. This is how real professionals hack servers. It is clear that this is not a matter of the moment, but is carried out after hours, days and weeks of hard work.
Almost every day, security specialists find and eliminate various shortcomings. Usually they are well aware of how servers are hacked, and they do everything to prevent this from happening. Therefore, it is possible thatwhen you have to look for a weak spot for quite some time. But even so, there is no universal base for all the shortcomings, so if you want to identify problems, you need to stock up on time, patience and a large number of programs. After all, identifying weaknesses and exploiting them is in most cases much easier than patching them up.
How is a remote server actually hacked?
Many problems come from CGI scripting. Therefore, it is not surprising that they are a priority target. This is due to the universality of the programming languages in which they are written. As a result, functions in scripts pass data that is not checked, but is immediately directed to potentially vulnerabilities. The weakest language in terms of security is Perl. Others, like PHP and ASP, also have holes, but there are fewer of them. Java is considered relatively secure, but due to slow data processing, it is reluctant to use. But the biggest problem is the human factor. Many self-taught programmers don't even think about security. So a few good CGI scanners will help in this case.
Where can I find the data I need?
So we looked at how servers are hacked. But how to find what you need, and where? It all depends on what you need to find. So, if it's a file on the server itself, then that's one thing. If you need to make changes to the database - it's quite another. You can get the file when it is possible to download it from the server. For such cases, the 21st port is suitable. Forchanges to the database data, you will need to additionally gain access to it or the file that edits it.
An example of a hack in general
How does hacking actually happen from A to Z? Let's look at this process using the example of gaining access to the Contra Strike game server. This choice was made due to the popularity of this entertainment. How to hack the server to the admin panel, because they are of the greatest interest? There are two main ways - a simple selection of passwords and more sophisticated. One of these more complex and effective ways is backdoors. They involve logging into the console through open ports between 27000-37000 and editing a file that specifies who is the administrator. There are other ways to hack the "KS" server, but remember that these actions are illegal!