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Description: 让进程在系统中更加隐蔽(2) 一般来说一个后门程序需要更改系统的某些文件来让程序在系统启动执行这个程序， 又要在某个地方保留这个程序（一般是在硬盘）。如果有什么办法不这样做又让程序在 系统中运行的话，就可以使后门程序更加隐蔽。也就是说程序在硬盘上找不到在系统的 启动配置中没有这有项。真正要做到这样好象不太现实，但可以采用简单的方法：在程 序被执行后删除程序文件和启动文件中被更改的部分，然后在系统被关闭前保留程序文 件和更改启动文件，让它在系统启动时又能被执行。 程序是一个可执行文件在被执行时系统会把它保护起来，如果要删除它需要更改系 统！很麻烦！可以把代码放到其他程序中作为另外进程的线程来运行既利用创建远程线程 函数。系统被关闭一般有三种情况：正常关机，掉电(不正常关机),一键关机(按下power). 对于正常关机，程序会收到CTRL_SHUTDOWN_EVENT的信号，一键关机，可以简单的使用钩子 但掉电(不正常关机)老农实在想不出办法。好在一般的nt服务器很少这种情况。 在nt系统下用CreateService来注册一个服务，当然是在系统SHUTDOWN前。在启动时 用DeleteService删除这个服务,保存一个程序文件在虚拟内存中,删除在硬盘上程序-process in the system to allow a more subtle (2) In general a backdoor procedures need to change the system to certain documents procedures for the system to initiate the implementation of this procedure, but also to retain a place in the process (usually in a hard disk). If there is any way to do so without letting procedures in the system running, then we can process more subtle back door. In other words procedures not found in the hard disks on the system's configuration did not start with this item. Really want to do so it did not seem realistic, but it is a simple approach : in the process would be implemented to delete files and startup files were altered, Then the system was closed down before the document retention procedures and changes in startup files, it started when the sy
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Size: 75506 |
Author: 无间刀 |
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Description: 题目内容：使用队列模拟理发馆的排队现象，通过仿真手法评估其营业状况。
基本要求：
假设理发馆内设有N把理发椅，可同时为N位顾客进行理发。对于在营业时间(假设为T小时)内进门的顾客：
*当顾客进门时，若有空椅，则可以立即坐下理发，否则需要依次排队等候。
*一旦有顾客理完发离去时，排在队头的顾客便可开始理发。
*若理发馆每天连续营业T小时，求一天内顾客在理发馆内的平均逗留时间
*顾客排队等候的队列平均长度。
*营业时间到点后仍需完成服务的收尾工作时间。-topics as : the use of cohort simulation barber's shop, the queues, through simulation methods to assess its financial situation. Basic requirement : Suppose N Barber Library has put barber chairs, as well as for customers, N barber. For hours (assuming T-hour) entering customers : * When customers come through the door, if empty chairs, they can sit down barber immediately, otherwise needs were queuing up. * Once customers Jimmy End made to leave, the first in the queue of customers will start barber. * If the Barber Museum consecutive business day T-hour day for customers in the barbershop where the average length of stay * Customers waiting in line for the average queue length. * Hours after the close of the service needs to be done finishing time.
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Size: 7560 |
Author: lucky100 |
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Description: 一个非常简短的WEB后门程序，能实现对数据库操作，对文件的编辑，删除，上传功能。
以及远程运行应用程序。-a very brief Web back door that can be used for database operation, the paper's editor, delete, Upload function. Remote operation and application procedures.
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Size: 6851 |
Author: 白痴 |
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Description: 看门狗演示开门狗是单片机学习中一个重要的知识点,本程序是开门狗的一个简单的演示程序，希望给初学者一些帮助.-watchdog demonstration opened the door the dog was a learning SCM important knowledge, the process is to open the dog's a simple demonstration of the procedure, hoping for some help beginners.
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Size: 15196 |
Author: 许见 |
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Description: 超级市场中，有的时候需要保存购买者的名称、电话号码、地址信息，以方便进行送货上门、订购服务。
电话号码目录是拥有大量数据的存储库，提供有关个人和组织的信息，简易的电话号码存储系统可以采用C语言来实现，并且这些信息可以保存在磁盘文件上。
随着新订户的加入、一些老订户的删除以及其他订户数据的改变，必须经常地更新目录。除了添加、删除、修改操作外，还可以查询现有的数据。
-supermarket, sometimes necessary to preserve the purchaser's name, telephone number, address information, to facilitate door-to-door, ordering services. The telephone number directory with large data storage library, providing individual and organizational information, the telephone number of simple storage systems can be used to achieve C language, and these messages can be stored on disk documents. With the accession of new subscribers, some old subscribers and other subscribers to delete data changes, must regularly updated directory. In addition to add, delete, modify operations, but also for the existing data.
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Size: 2918 |
Author: 李奕龙 |
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Description: 串口键盘,单片机应用者必备
给有用的同志门-serial keyboard, SCM application to a person's door useful
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Size: 8770 |
Author: zhengyi |
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Description: 以P3.7為切換開關設定不同顯示P0~P2之走馬燈模式，當P3.7為0時P0到P2為全亮或全暗，當全亮則逐點暗掉，若全暗則會逐點亮起。P3.0~P3.6則用以設定走馬燈執行的速度。
-to P3.7 Switches to set different shows P0 - P2's like a revolving door model When P3.7 P0 to 0:00 a.m. for the whole of the P2 - or full darkness, when the whole point - is gradually dark swap, if the whole secret will be a case-by-point turn. P3.0 - P3.6 like a revolving door that is used to set the pace of implementation.
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Size: 1715 |
Author: se |
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Description: 模拟电梯运行程序
功能如下：
初始化时，电梯位于第一层；
有键按下时，开始运行
运行时距离相差一层的才被记录并
向上运行时记下所有的所在层下面的请求；
向下运行时记下所有的所在层上面的请求；
到达楼层后，关掉指示灯，开门并停留20S
在停留的20S中包含关门的时间
在停留期间，按下关门则立即关门！
假设关门的时间是5S，在这个时间内按下开门时将开门停留
当有人按下该层按钮时，则自按下起停留20S
然后关门继续运行
当到达楼层时，传感器输出高电平
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I/O口描述：
模拟方式驱动：
P0口连接DAC0832的数据口
P2_6<-->CS1
P2_7<-->CS2
P2口作为传感器信号输入端
P2_0-P2_4<-->1~5
P1口作为来自按键的控制信号输入端
P1_0~P1_6<--> 按键的 1~7
timer1作为定时器定时20S使用 -simulated lift operating procedures following functions : initialization, the lift in the first layer; Press a button, Operation started running away from the difference was only one record to run on all remember when the host layer below the request; remember running down all the host layer above; arrived at the floor, turn off lights come on, 20 remain open and stay in the S 20 S includes closing time during his stay in? closed immediately closed! Assuming the closing time is 5 S, in time to open the door when the press will stay open when someone pressed the button layer, Since then press the starting 20 S then stay close to running arriving floors, sensor output serial SUMMARY **************************** I / O I Description : simulation-driven : P0 connectors DAC0832 data mouth P2_6
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Size: 875 |
Author: 穆勒 |
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Description: The PCI Local bus concept was developed to break
the PC data I/O bottleneck and clearly opens the door
to increasing system speed and expansion capabilities.
The PCI Local bus moves high speed peripherals
from the I/O bus and places them closer to the system’s
processor bus, providing faster data transfers
between the processor and peripherals. The PCI Local
bus also addresses the industry’s need for a bus standard
which is not directly dependent on the speed,
size and type of system processor. It represents the
first microprocessor independent bus offering performance
more than adequate for the most demanding
applications such as full-motion video.
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Size: 6777237 |
Author: 丰毅 |
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Description: The PCI Local bus concept was developed to break
the PC data I/O bottleneck and clearly opens the door
to increasing system speed and expansion capabilities.
The PCI Local bus moves high speed peripherals
from the I/O bus and places them closer to the system’s
processor bus, providing faster data transfers
between the processor and peripherals. The PCI Local
bus also addresses the industry’s need for a bus standard
which is not directly dependent on the speed,
size and type of system processor. It represents the
first microprocessor independent bus offering performance
more than adequate for the most demanding
applications such as full-motion video.
Hardware reference
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Size: 2121553 |
Author: 丰毅 |
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Description: The PCI Local bus concept was developed to break
the PC data I/O bottleneck and clearly opens the door
to increasing system speed and expansion capabilities.
The PCI Local bus moves high speed peripherals
from the I/O bus and places them closer to the system’s
processor bus, providing faster data transfers
between the processor and peripherals. The PCI Local
bus also addresses the industry’s need for a bus standard
which is not directly dependent on the speed,
size and type of system processor. It represents the
first microprocessor independent bus offering performance
more than adequate for the most demanding
applications such as full-motion video.
User Manual
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Size: 3303966 |
Author: 丰毅 |
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Description: SSP从机器实验！可以配置从机通信，朋友门可以参考一下...希望对大家有帮助！-SSP from the experimental machine! Can configure communications from the plane, friends can make reference to the door ... we want to help!
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Size: 1024 |
Author: 徐阳 |
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Description: 综合的加密软件可以对候选客流量为中华人民共和国-Encryption software can be integrated traffic on the candidate for the People s Republic of China
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Size: 1167360 |
Author: 张鑫彦 |
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Description: 用于工厂对于门花尺寸进行自动计算，给出门的设计尺寸后对材料清单进行计算，delphi开发-For the plant for the flower size door automatic calculation, to go out after the design of the size of materials are calculated, delphi development
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Size: 7661568 |
Author: toxzh |
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Description: 可以供在SVM门口的初学者早日入门，这些都是最基本的SVM程序，但是也比较专业，希望有需要的人使用-SVM can be at the door for an early entry for beginners, these are the most basic SVM procedure, but more professional, I hope the person has required the use of
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Size: 288768 |
Author: xin |
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Description: 这是本人设计的门禁电路图，已经实际生产，作为本公司的产品，在市场上使用。放在这里供大家参考，程序晚点上传。-This is my design of the access control circuit, has the actual production, as the company' s products in the market to use. Placed here for your reference, the program late upload.
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Size: 14336 |
Author: 吴青青 |
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Description: 基于8051单片机的走马灯控制程序。开发环境为Keil，用C语言编写程序。可通过与PROTEUS软件的联调进行仿真。-Based on 8051' s revolving door control procedures. Development environment for the Keil, using C language programming. Through the FBI and the PROTEUS simulation software.
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Size: 92160 |
Author: 叶震林 |
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Description: 酒店门锁软件用户手册 内含详细操作 酒店管理 -Hotel door lock operation of the software user' s manual contains detailed
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Size: 1068032 |
Author: 夏志 |
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Description: 控制与制作，合理的使用我门的单片机制作程序等，我们借助单片机控制硬件-Control and making reasonable use of my door SCM production process, we use SCM control hardware
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Size: 546816 |
Author: xieyuan |
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Description: it's a sdk doc, and has the lib and dll and document, it's control the door open and close.
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Size: 11341824 |
Author: sunyang
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