7C FB 1F FC be 1 b 7C
000000010 BF 1 b B9 E5 F3 A4 CB BD are B1 04
000000020 6E 7C C5 E2 F4 CD 8B F5
000000030 C6 2C F6 A0 B5 modified B4 modified 8B
000000040 F0 AC 3C FC BB B4 0E CD-EB F2 88
000000050 4E E8 2A FE (7E) 0B 0B (EUR) (a) of $ i
000000060 7E 0C A0 B6 D2 80 46 02 06 83
000000070 0A E8 A0 B6 modified EB (MB)
000000080 BC bayi 3E FE 7D m AA C8 0B 7E A0
000000090 B7 modified
move exceeds the 8-bit limit, and the Debug program displays a new row and displays the new address at the beginning of the line.Returns to the previous byte. To do this, press the hyphen key (-). You can repeatedly press the hyphen key (-) to move more than one byte backwards. When you press hyphen, Debug starts a new row and displays the current address and byte values.Stop the Execute e command. To do this, press the ENTER key. You can press ENTER at any byte position.Using the list paramete
the ESP value, and then the ESP-4 is assigned to EBP, the value of the EBP register used to save the ESP value in this "Top program" will never change. Although it may change temporarily after entering the sub-call (used for the stack balance of the sub-call), after exiting, the original ebp value will be restored according to * pop EBP.
Taking this sentence as a breakthrough means that as long as we can break through the "top-Layer Program", we can observe the ESP value of EBP when the shell i
displayed...
The Formatting Function is as follows:
The Code is as follows:
// Format the size DisplayFunction formatSize ($ B, $ times = 0 ){If ($ B gt; 1024 ){$ Temp = $ B/1024;Return formatSize ($ temp, $ times + 1 );} Else {$ Unit = 'B ';Switch ($ times ){Case '0': $ unit = 'B'; break;Case '1': $ unit = 'kb'; break;Case '2': $ unit = 'mb'; break;Case '3': $ unit = 'gb'; break;Case '4': $ unit = 'tb'; break;Case '5': $ unit = 'petab'; break;Case '6': $ unit = '
Found a lot of methods on the Internet, all not, and finally found this.(Linux remote Windows is much more convenient, directly with your own Remote Desktop client on the line)1. Set Ubuntu system to allow remote control Open Desktop Sharing in Dash650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M01/82/EB/wKioL1dlH4ayv56GAADUh32P2SI346.png "title=" 2016-06-18 18-16-06 screen. png "alt=" Wkiol1dlh4ayv56gaaduh32p2si346.png "/>2. Run the Dconf-edi
Sometimes we need to show the size of a file on a Web page, or the size or number of other data.This number is often from a large span, if the unit B is a bit, if 1G is up to 1073741824 of the number, this time we need to format according to the size, such as less than 1K is displayed in units B, less than 1M is displayed in kilobytes, less than 1G is displayed in megabytes, etc...The Format function reference is as follows://Format size DisplayfunctionFormatsize ($b,$times=0){ if($b>1024){
Sometimes we need to show the size of a file on a Web page, or the size or number of other data.
This number is often from a large span, if the unit B is a bit, if 1G is up to 1073741824 of the number, this time we need to format according to the size, such as less than 1K is displayed in units B, less than 1M is displayed in kilobytes, less than 1G is displayed in megabytes, etc...
The Format function reference is as follows:
//Format size DisplayfunctionFormatsize ($b,$times=0){ if($b>102
, KB is displayed. if the value is smaller than 1 GB, MB is displayed...
The formatting function is as follows:
The code is as follows:
// Format the size displayFunction formatSize ($ B, $ times = 0 ){If ($ B gt; 1024 ){$ Temp = $ B/1024;Return formatSize ($ temp, $ times + 1 );} Else {$ Unit = 'B ';Switch ($ times ){Case '0': $ unit = 'B'; break;Case '1': $ unit = 'KB'; break;Case '2': $ unit = 'mb'; break;Case '3': $ unit = 'GB'; break;Case '4': $ unit = 'TB'; break;Case '5': $ unit = 'pet
Basically, most of the methods for cracking are the same, that is, to change the logic value to false when it is judged to be true. Therefore, we often need to replace some assembly commands:
Cmp a, B compare A and BMoV A and B send the value of B toRET back to masterProgramNOP is ineffective. The abbreviation of "no operation" means "do nothing" (machine code 90) *** for the meaning of the machine code, see the above(Explanation: When ultraedit opens and edits the EXE file, you will see 90, e
following format:
04BA: 0100 EB.
To change the value to 41, type 41 at the insertion point, as shown below:
04BA: 0100 EB.41 _
You can use an e command to Type Continuous byte values. Press SPACEBAR (Space key) instead of ENTER after you type a new value. Debug displays the next value. In this example, If You Press SPACEBAR three times, Debug displays the following values:
04BA: 0100
hexadecimal byte or a string. Use spaces, commas, or tabs to separate values. You must include the string in single or double quotes.
Example
Suppose you type the following command:
ecs:100
Debug Displays the contents of the first byte in the following format:
04ba:0100 EB.
To change the value to 41, type 41 at the insertion point as follows:
04ba:0100 eb.41_
You can type a contiguous byte value with an e
[Break text title] crack UPolyX 0.51 Shell[Author] xianguo[Author mailbox] xianguo1985@163.comAuthor homepage http://hi.baidu.com/zhanglinguo11[Cracking tool] OD PEID[Cracking platform] Win32-XPsp2[Software Overview] The UPolyX 0.5 shell information on the network today found that there is very little information about the Shell cracking, And I have cracked it myself. I think I can give this shell more information![Cracking statement] is purely a personal hobby.----------------------------------
Cmp a, B // compare A and BMoV A, B // send the value of B to the value of a, so that a = BRET // return the main programNOP // no effect, abbreviated as "do nothing" (machine code 90)(Ultraedit open and edit the EXE file to see the NOP of 90 equivalent Assembly statements)Call // call a subroutine ending with RETJe or JZ // equal jump (machine code 74 or 84)JNE or jnz // skip if not equal (machine code is 75 or 85)JMP // unconditional jump (machine code is
following command:
ECS: 100
Debug displays the content of the first byte in the following format:
04ba: 0100 EB.
To change the value to 41, type 41 at the insertion point, as shown below:
04ba: 0100 eb.41 _
You can use an e command to Type Continuous byte values. Press spacebar (Space key) instead of enter after you type a new value. Debug displays the next value. In this example
Spacebar (Space key), debu
the correctness of the program running,
You can also track the execution process, compare the values before and after a command execution, compare and move the data range in the memory, and read and write files and disk sectors.
Enter the D command to view the register content:
[Plain]View plaincopy
-D
0b5d: 0100 02 00 EB 0e 50 B0 03 B4-FF E8 9e 00 58 EB 03 E8 ...... P...
0b5d: 0110 1D 01 58 C3 F9 C3 5
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