![]() ![]() 6.Īssuming that the above steps have been taken, a Wireshark pcap file should have been generated. Kill the malware process using Process Explorer. “Detonate” the malware from its new location. Start Wireshark capturing network traffic. The steps for this portion of the behavioral analysis are as follows: 1. There will be more about integrated mode versus classic mode later in this chapter. Isapimodule.dll maps ISAPI calls as though modules were running in the older IIS 6.0 and earlier model in classic mode. As we will see later, this native global module provides managed code direct access to the pipeline when running in integrated mode. These modules allow C and C++ programmers more freedom because they are not being bound by the tight restrictions in writing ISAPI code.Įxtensibility in IIS 7.0 is also provided to manage code via webengine.dll. Programmers who are used to writing ISAPI filters and extensions now have the option of using the new publicly available APIs for creating their new modules. The advantage of this is speed and improved performance. Native code itself interacts with the IIS 7.0 request pipeline directly, without any intermediaries or shims. What's even better is that they can be downloaded for free at Through the use of the new native application programming interfaces (APIs) or ASP.NET, modules can be developed to extend IIS 7.0. The tools created by this group are some of the best in the industry. The tools provided at Windows Sysinternals are used by many at Microsoft and have been for years, so it made sense when Microsoft acquired the group headed by Windows guru Mark Russinovich. Notice that both native and managed code have the same access to the same events. Figure 3.1 depicts the core server in IIS 7.0. Now managed code can control every request going to the application to which it is mapped. No longer do developers have to depend on an ISAPI intermediary, which is difficult to write and must be done in C or C++. When running in integrated mode, IIS 7.0 allows ASP.NET to integrate with the core server, thus providing a unified pipeline for both native and managed code and allowing ASP.NET modules to be used for requesting static files and other content. Requests to non-ASP.NET content such as static files were not visible to ASP.NET under IIS 6.0 and earlier. This was integrated via ISAPI extensions therefore, administrators ended up having two separate pipelines-one for native code (ISAPI filters and extensions) and a second for managed code (ASP.NET). NET application components was allowed through ASP.NET. In earlier versions of IIS (6.0 and earlier), the development of.
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