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Practical Malware Analysis
book

Practical Malware Analysis

by Michael Sikorski, Andrew Honig
February 2012
Intermediate to advanced
800 pages
23h 55m
English
No Starch Press
Content preview from Practical Malware Analysis

Lab 19-2 Solutions

Short Answers

  1. The program process-injects the default web browser, Internet Explorer.

  2. The shellcode buffer is located at 0x407030.

  3. The shellcode is XOR’ed with the byte 0xe7.

  4. The shellcode manually imports the following functions:

    • LoadLibraryA

    • CreateProcessA

    • TerminateProcess

    • GetCurrentProcess

    • WSAStartup

    • WSASocketA

    • connect

  5. The shellcode connects to IP 192.168.200.2 on TCP port 13330.

  6. The shellcode provides a remote shell (cmd.exe).

Detailed Analysis

The malware starts by determining the default web browser by reading the registry value HKCR\http\shell\open\command. The browser is created as a new process whose StartupInfo.wShowWindow value is set to SW_HIDE, so the process is hidden from the user interface. Process-injecting the default web ...

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Publisher Resources

ISBN: 9781593272906Errata Page