Software cracking (known as "breaking" mostly in the 1980s[1]) is the modification of software to remove or disable features which are considered undesirable by the person cracking the software (software cracker), especially copy protection features (including protection against the manipulation of software, serial number, hardware key, date checks and disc check) or software annoyances like nag screens and adware.
A crack refers to the means of achieving, for example a stolen serial number or a tool that performs that act of cracking.[2] Some of these tools are called keygen, patch, loader, or no-disc crack. A keygen is a handmade product serial number generator that often offers the ability to generate working serial numbers in your own name. A patch is a small computer program that modifies the machine code of another program. This has the advantage for a cracker to not include a large executable in a release when only a few bytes are changed.[3] A loader modifies the startup flow of a program and does not remove the protection but circumvents it.[4][5] A well-known example of a loader is a trainer used to cheat in games.[6] Fairlight pointed out in one of their .nfo files that these type of cracks are not allowed for warez scene game releases.[7][4][8] A nukewar has shown that the protection may not kick in at any point for it to be a valid crack.[9]
Volume Serial Number Editor Cracked
The most common software crack is the modification of an application's binary to cause or prevent a specific key branch in the program's execution. This is accomplished by reverse engineering the compiled program code using a debugger such as SoftICE,[18] OllyDbg, GDB, or MacsBug until the software cracker reaches the subroutine that contains the primary method of protecting the software (or by disassembling an executable file with a program such as IDA).[19] The binary is then modified using the debugger or a hex editor such as HIEW[20] or monitor in a manner that replaces a prior branching opcode with its complement or a NOP opcode so the key branch will either always execute a specific subroutine or skip over it. Almost all common software cracks are a variation of this type. Proprietary software developers are constantly developing techniques such as code obfuscation, encryption, and self-modifying code to make this modification increasingly difficult.[21] Even with these measures being taken, developers struggle to combat software cracking. This is because it is very common for a professional to publicly release a simple cracked EXE or Retrium Installer for public download, eliminating the need for inexperienced users to crack the software themselves.
Seagate has created a very simple tool called DriveDetect.exe, which will tell you the serial number and the model number of any and all Seagate, Samsung and Maxtor-brand drives connected to your computer.
First, this is what I mean about serial numbers. Suppose you're using a Windows system, have a floppy disk at drive A:/ and a regular USB flash drive at E:/, and you run these commands in the command prompt:C:\>vol E:Volume in drive E is CRUZERVolume Serial Number is 955C-59BFC:\>vol A:Volume in drive A has no label.Volume Serial Number is EC2B-36AFThese serial numbers are assigned when the drive is formatted; reformatting a floppy disk or flash drive will give it a different serial number.According to The Wikipedia, the serial number (ID) is kept in two different places on the partition depending on the version of FAT being used.In FAT12 and FAT16 (used with floppy disks), the ID begins at byte offset 0x27 (39 in decimal); in FAT32 (used with flash drives and external hard drives), the ID begins at 0x43 (67 in decimal).So, with the handy dd utility that comes standard on pretty much any Unix-like system, you can extract this information and display it. Here are a couple of one-liners you can run in a Unix terminal. I'll explain how they work afterward.# For FAT32 filesystems (modern flash drives)dd if=/dev/sdb1 skip=67 bs=1 count=4 hexdump -v -e '1/1 "%02X" " "' xargs perl -e '@_=@ARGV; print "Serial Number: $_[3]$_[2]-$_[1]$_[0]\n"'# For FAT12/16 filesystems (old floppy drives)dd if=testfloppy.img skip=39 bs=1 count=4 hexdump -v -e '1/1 "%02X" " "' xargs perl -e '@_=@ARGV; print "Serial Number: $_[3]$_[2]-$_[1]$_[0]\n"'I underlined the input file (if) and byte offset (skip) in both of these commands. In the first one, I ran the command on a real, physical, flash drive, that had a device node at /dev/sdb1 for its one and only partition. In the second one, I ran it on a floppy disk image file (who has a computer with a real floppy drive these days?)If you're going to be using a physical device like in my first command, you need to run the command with root privileges (regular users can't read directly from the device node). My second example (using an image file) can be run as a regular user, however.These commands printed in the terminal for me:(for the flash drive)4+0 records in4+0 records out4 bytes (4 B) copied, 3.3445e-05 s, 120 kB/sSerial Number: 955C-59BF(for the floppy image)4+0 records in4+0 records out4 bytes (4 B) copied, 3.1551e-05 s, 127 kB/sSerial Number: EC2B-36AFAnd now, how the commands work. I'll use the flash drive command as the example. In this one-liner, three commands are being executed at once:dd if=/dev/sdb1 skip=67 bs=1 count=4hexdump -v -e '1/1 "%02X" " "'xargs perl -e '@_=@ARGV; print "Serial Number: $_[3]$_[2]-$_[1]$_[0]\n"'The dd command gets the operating system to read raw data from the flash drive at /dev/sdb1, skipping the first 67 bytes, reading only 1 byte at a time, and reading a total of 4 bytes. This gets the 4 byte serial number; now we need to display it in hexadecimal like Windows and DOS.The hexdump command takes the 4 binary bytes and displays them in hexadecimal. On my flash drive, it looks like this: BF 59 5C 95. Note that the hex codes are out of order; Windows shows them as 955C-59BF - basically, the reverse of what hexdump shows. Hexdump is showing the correct order; Windows and DOS reverse them when they show you the serial number.So, we run it through xargs (which turns the four hex numbers into four separate parameters) and sends them to a quick Perl script, which prints out "Serial Number:" and puts the hex codes in the correct order, to give the same result as Windows and DOS.One could use this information to make a vol command for Unix. If the command checks other places in the filesystem headers to determine the version of FAT, it could automatically use the correct byte offset and get the serial number from both floppy disks and flash drives. Tags: Linux Windows DOS Comments There are 15 comments on this page.Add yours.
I follow your step, but on Macintosh HD my serial number is 0000-0000 and on DVDs\CDs it response: "Resource busy". If I search this SN with Windows on Mac HD or optical support I read my real SN why?
I have a usb pen drive. I am developing an application which stores the serial number of the pen drive, so that it can check it the next time the pen drive is plugged in. Please provide me with all the steps required to find the serial number on a linux system.Thanks !
I got a question. I heard, and have seen it done, that some license company that put licenses on usb sticks, use the serial number or UUID, and you then can't just clone the usb drive to get a second license. so, I know this was a Russian hack, does anyone know how to do this. clone a usb stick with a license, so you can have 2 licenses...I know its been done before. please send me a link with the crack.
If they are using the serial numbers as described on this blog post it should be trivially easy to clone the USB drive: these serial numbers are encoded as part of the partition headers on the filesystem. When you (re)format a drive as FAT it rolls new numbers for the serial number but you could clone the whole disk including the serial easily from a Linux terminal like:
Or, without needing to copy disk images or reformat an existing FAT partition on the new USB stick, you could just hex edit the serial number in. See the original blog post for the filesystem offsets where the serial is kept for FAT16 and FAT32, you could copy the serial from the original disk and paste that same value into the same offset on the target disk.
Note: this is all assuming the software is using the FAT serial number for its DRM; it could be checking a lower level, hardware serial number which is a whole other kind of creature. The hardware serial may be difficult to modify on a regular USB stick, but - with an Arduino teensy USB development board or similar, you can program the USB device yourself to present itself as anything you want. For example a device like this could be programmed to present to your computer as being a USB hub with a USB keyboard+mouse attached plus a USB flash drive attached, or any other such shenanigans. So by programming it to present as a USB flash drive it could tell the computer anything it wants regarding its hardware serial number and can pretend to be the original flash drive which may be enough to defeat such licensing issues. I don't have any direct personal experience in that domain, however!
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Detailed block diagram of the three subsystems of our serial preoperative image-update system. (a) Building of the biomechanical model from the preoperative images. (b) Calculation of the volume displacement field of the initial biomechanical model using the displacement fields of surface landmarks tracked between a pair of successive iMR images. The updated iMR images are used for validation. For each subsystem, inputs are in green, outputs are in red, and steps related to the definition and use of a discontinuity are in blue. 2ff7e9595c
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