Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language.
For example:Add eax,-2;// It can be considered that a value such as-2 is added to the variable eax.
These 32-bit registers have multiple purposes, but each of them has "expertise" and has its own special features.
EaxIt is an accumulator, which is t
most notably uccnet, an Internet-based electronic commerce service.
Getting started with ebXML
How your company gets started with ebXML depends on where you are with electronic business communication. if you are currently engaging in electronic business, the answer to "how" will depend on your trading partners and their industry. if you are new to doing business electronically, ebXML will enable you to cost your tively enter the market, cut operating costs, strengthen relationships with tradin
FTP
File Transfer Protocol (FTP) was defined and published in 1985 with four objectives: to promote the sharing of files, to encourage the use of remote computers, to shield a user from variations in file storage systems among hosts and to transfer data in a reliable and efficient way. FTP is a simply way to exchange files between the Internet and your computer. FTP is a protocol used to upload files from a computer to a FTP server or to download files from a FTP server to a computer. the compu
Part 1: network configuration, memory 512 MB * 2 There are three servers, each with two fast virtual NICs: VMnet1 and VMnet2. the first server DC01 serves as AD, the other two servers are named cluster1, and cluster2 serves as two nodes. the network
Uccnet
What is uccnet?
Uccnet's globalregistry? Has been endorsed by region standards groups, including UCC, EAN International, GCI, vics, GMA, and FMI, as the central item registry for our industry. export other retailers including Ace Hardware,
Collaborative planning, forecasting and replenishment (CPFR)
CPFR is a concept that allows collaborative processes processing ss the supply chain, using a set of process and technology models that are:
Open, yet allow secure
Web Services
The term Web Services refers to the use of Internet-based standards as a means of sharing information and services between incompatible applications and information sources. by making information and services accessible in a
Xml| e-commerce
The development of electronic commerce
The earliest e-commerce is the traditional EDI (Electronic data interchange, electronic exchange). In the the late 1960s, the concept of EDI was introduced almost simultaneously by Europe and the United States. The early EDI was done by direct communication between two business partners, and the deve
is not running in the compiler environment and does not include to declare functions, there is no function table for the application. Therefore, shellcode needs to find its own API function address and then forcibly call it.(1) Find the kernel32.dll base address:The APIs used in the shellcode are generally unrelated to the user interface, because it is used in kernel32.dll to do bad things. Therefore, we must first find the base address of kernel32 to further find the specific address of each A
18. String processingThe preceding article describes the processing of strings, which are arrays of type Byte, and now implement a piece of code to copy the string string1 data into the string string2The code is as follows" Hello world! " 0 0 . Codemov-mov ebx,0. Repeatmov al, String1[ebx]mov string2[ebx], AlInc Ebx.untilcxzby ecx Decrement, the string string1 each character at once to string2, where the EBX base register is used. can also be passed through ESI and
, that is, taking the pixel (x, y) as the center, to (x-radius, Y) and (x + radius, Y) after the pixels are multiplied by weights, the new pixels are obtained and written to the corresponding points on the target image.
The process ends.
Since the above processing process only performs a "Ten" operation on each pixel of the image, the operation on each pixel point is greatly reduced, and the greater the fuzzy length, the more reduced. As mentioned above, the Q = 3 and r = 5 Fuzzy Operations only
.
Generally, you can call psgetcurrentprocess to obtain the first eprocess structure. Unfortunately, when a remote driver is injected, we mayInjected into a process in the "Waiting" status, the "Waiting" process does not return a valid process control block. I used pslookupprocessbyprocessid to replace,The PID of the "System" process is used as the parameter. In Windows XP, this value is 4, while in Windows 2000, this value is 8.
Lea EBP, [edi
--------------------------------------------------------------------------------. Data; InitializationBEGIN_INITDd offset Shap_destructor_FunctDd offset Shap_getArea_FunctDd offset Shap_setColor_FunctDd NULLEND_INIT--------------------------------------------------------------------------------. CodeShape_Init PROC uses edi esi lpTHIS: DWORD; Actual call InitializationSET_CLASS Shape; Set edi assmue to Shap
the kernel shellcode and the user shellcode. The kernel shellcode is responsible for returning and executing the user shellcode. The user shellcode is a common function. You must add the firewall-based code. The following is the kernel shellcode Code, which does not provide complete shellcode, because first, it is only for technical research, but not to be used by people who do not know nothing about the technology but only want to destroy it. The machine code to be converted is only 230 bytes
to add CALLGATE for MGF virus:
_ DwFlag ----- bit 0: 0 = ntldr, 1 = PE; bit 1:0 = mem, 1 = file;Bit 2: 0 = auto (ansi/unicode), 1 = ansi......................... Else; _ dwFlag; write CALLGATE if the file is NTLDRLea esi, szGdtData [ebx]Mov edi, @ lpFileMapMov ecx, @ dwFileSize@@:Inc ediPush esiPush ediPush ecxMov ecx, 10 hRepz cmpsbPop ecxPop ediPop esiLoopnz @ B
In NTLDR, search for RING0 and CS in 16 bytes. After DS finds the d
by virtual machines to run multiple "virtual servers" on a high-end server at the same time. These virtual servers are no different from the real servers. The use of the partitioning server has multiple advantages: first, the many machines formed by the partitioning system are in the same physical server, rather than scattered around, so it is much easier to manage. Second, purchasing large servers to separate them will be cheaper than buying many small servers. In this way, we have implemented
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