MDaemon Pro 10.1.2 MDaemon Pro 10.1.2 62.7 MB MDaemon Pro 10.1.2 - this is one of the most powerful mail server with many advanced features. It supports the protocols SMTP, POP and IMAP, allows remote configuration. There is a built-mail Web-server, and also built a powerful system of filtering spam. Another of the very useful features - a built-in antivirus protection KAV (AVP) More information about the mail server MDaemon Outlook Connector for MDaemon opens up access to the functions of collective work, implemented in the package Microsoft Outlook, for small and medium-sized organizations. As a server, send e-mail uses the package MDaemon. With Outlook Connector for MDaemon you can always stay connected with their employees through general access your Outlook, address book, schedule meetings, lists of projects, tasks, notes, etc. Outlook Connector for MDaemon offers companies the opportunity to use the Groupware-functions of Microsoft Outlook without the additional costs of Microsoft Exchange Server.

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SecurityPlus for MDaemon - a powerful means of protecting email from spam, spyware, phishing and viruses on your mail server MDaemon. Unlike traditional solutions, the package SecurityPlus for MDaemon used spam detection in real-time detection technology duplicate samples Recurrent Pattern Detection Technology (RPD?), as well as protection technology from the newly emerging viral epidemics Zero Hour? Virus Outbreak Protection. When using a mail server with MDaemon SecurityPlus you get anti-virus and spam protection the next generation. SecurityGateway for Exchange / SMTP servers is helping the owners of other mail servers use the achievements of Alt-N in the fight against spam and other network threats that have been successfully applied in the server MDaemon.

Firewall spam SecurityGateway Server Exchange / SMTP is different convenient administration, a powerful system of filters and high precision work. RelayFax - is a powerful fax server that automates sending, receiving and processing of faxes over the network, as well as integrating tools for faxing to the existing email system.

LDaemon - is a centralized address book and store contact information for the popular mail server MDaemon. This software is free, downloaded separately from MDaemon. Archive Server for MDaemon - the program allows to keep the mail and quickly find any e-mail. All incoming and outgoing mail is automatically recorded, so you can restore any letter without technical assistance. MailDetective for Microsoft? Exchange Server and email server MDaemon - an effective tool for monitoring e-mail us. Unlike other analysis programs e-mail traffic, MailDetective easily adapts to the specific needs of the organization.

The program offers both the possibility of quick access to information from any computer network company, and a fully automated version of the configuration of mailing of reports via e-mail. Mail Access Monitor for MDaemon mail server performs monitoring the mail server. Analyzing log files created by MDaemon, Mail Access Monitor allows you to quickly monitor the mail server to reflect the volume of generated traffic and issue reports on those to whom, how and when the most heavily send and receive emails.

If you've ever heard software piracy terminology being discussed, I'm sure the term KeyGens came up. KeyGens is short for key generator, which is a program that exploits algorithmic faults in software by generating software license keys that appear to be genuine. Normally used as a technique to protect the source code software and prevent piracy, a key generator exploits the key algorithm to effectively nullify the need for any software licenses. For example, we must try to find patterns in the keys, such as three 5s in every key, all even numbers, etc. Any way that the program could validate a program without being online could be a way that software is protected.

Normally, something like this would be of no use, but everything has its purpose. Suppose that you lose source to one of your programs, wouldn't you want to have the ability to reverse it and recover the source code? Alternatively, if you made a tool that people enjoyed, and decided to sell it via licenses, you need to check it for vulnerabilities such as these to mitigate the chances of your own software being stolen.

In today's Null Byte, let's go over how a KeyGen could work by cracking the algorithm used to verify software keys in a few examples. I will not be walking you through how to actually crack a program, because I can't just crack a program for demonstration, but the techniques applied to my examples should give you the foundation needed to create your own. At that point, it's a test of your morals if you want to use your knowledge for good or bad.

You must follow The Hacks Behind Cracking, Part 1 through until just before the final step, and then you can begin the tutorial below.

Step 1 Step Into the Function

1. Run the program with the debugger and resume where you are asked to enter the key again with an interrupt on it.
2. Strike F7 to go inside the function.
3. Keep striking F7 until you find the credentials and key you entered in the disassembler again, followed by a jump.
4. Shortly thereafter, you should find CMP 2D, DL, or something similar. This is the function that is validating our key.

Step 2 Start Reversing for the Key

1. You should see a bunch of CMP and shorts on the screen, likely alternating in pattern.
2. Click on, and examine CMP and what it is looking for, as opposed to what you entered.
3. This shows that it is looking for a dash, so let's try adding a dash anywhere in the key we are testing to see how far we can get in the validation. Remove all breakpoints and set a new one here.
4. Scroll down to the next null byte and find the one where the EAX is equal to the first part of your serial in decimal. You can use the converter built in to the Windows calculator.
5. Remove all previous breakpoints and set the new breakpoint to the CMP section that, when clicked on, shows our key value in hex being compared to the value it should be (because keys are generated based upon the name entered in the registration process).
6. The value here is actually the first correct part of the key written in the field, so if we convert it from hex to decimal, we now have the next part of our key. Set your new breakpoint, and rinse and repeat the past two steps until you receive a full key code and register successfully.

To make a key generator program, you have to repeat the steps at least one or two more times with different usernames so you can get different and working keys. These keys will be compared and examined for commonalities for algorithmic reversing. I hope you learned something.

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