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File loading method and device

A file loading and file technology, applied in the field of information security, can solve problems such as the system cannot access the Internet, the program crashes, and the LSPDLL file is not found and blocked.

Active Publication Date: 2015-12-02
BEIJING QIHOO TECH CO LTD
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  • Claims
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Problems solved by technology

In addition, because LSP is injected into most processes of the system and connected in series with the network access operation of the application program, if the code is not well thought out, the computer system where the application program is located will not be able to access the Internet, the program will crash or freeze, etc.
[0004] However, there is currently no effective measure to detect and shield some problematic LSPDLL files in time

Method used

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Embodiment Construction

[0025] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

[0026] figure 1 Schematic diagram of the WinSock framework. WinSock contains two extensible DLLs, transportproviderDLL and namespaceproviderDLL. Transportprovider is used for network data transmission and reception. It is layered and theoretically supports unlimited layers. All layers are strung together to form a chain; namespaceprovider is used for network name resolution. , not layered. Generally speaking, LSP refers t...

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Abstract

The embodiment of the invention discloses a file loading method and a file loading device. The file loading device comprises a configuration file loading device, and a loading conversion device, wherein the configuration file loading device is used for loading a configuration list of an application program; the loading conversion device is used for judging whether an LSP (Logical Signal Processor) DLL (Dynamic Link Library) file to be loaded is a special LSP DLL file according to the configuration information in the loaded configuration list, and replacing the operation for loading the special LSP DLL file with an operation for loading a predefined LSP DLL file, wherein the special LSP DLL is an LSP DLL file to be sheltered; the predefined LSP DLL file is a through-type DLL file; the through-type DLL file is the DLL file which is loaded through a special magnetic disk file path, so that a data packet is transmitted between an LSP chain upper layer and an LSP chain lower layer through the through-type DLL file. According to the scheme of the embodiment of the invention, the application program is prevented from loading the LSP DLL file to be sheltered through a file loading technology, and can be used for loading the through-type LSP DLL file; and the normal network communication is ensured.

Description

technical field [0001] The invention relates to information security technology, in particular to a file loading method and device. Background technique [0002] LSP (LayeredServiceProvider, network socket tool) is a unique mechanism in WinSock (WindowsSockets, layered service provider), the communication architecture of the Windows platform. Through the extensible LSP mechanism, third-party software developers can Insert DLL (DynamicLinkLibrary, dynamic link library) to monitor and modify TCP / IP data packets, so as to develop rich network applications, such as chat software communication encryption tools, network proxy software, online game accelerators, etc. [0003] LSPs can be used to develop regular applications. Virus or Trojan horse authors can also use LSPs to insert malicious codes into users' operating systems to steal user information. In addition, because LSP is injected into most processes of the system and is connected in series in the network access operation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/445H04L29/06
Inventor 张波谭合力
Owner BEIJING QIHOO TECH CO LTD
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