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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 11-3 Solutions

Short Answers

  1. Lab11-03.exe contains the strings inet_epar32.dll and net start cisvc, which means that it probably starts the CiSvc indexing service. Lab11-03.dll contains the string C:\WINDOWS\System32\kernel64x.dll and imports the API calls GetAsyncKeyState and GetForegroundWindow, which makes us suspect it is a keylogger that logs to kernel64x.dll.

  2. The malware starts by copying Lab11-03.dll to inet_epar32.dll in the Windows system directory. The malware writes data to cisvc.exe and starts the indexing service. The malware also appears to write keystrokes to C:\Windows\System32\kernel64x.dll.

  3. The malware persistently installs Lab11-03.dll by trojanizing the indexing service by entry-point redirection. It redirects the entry point ...

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ISBN: 9781593272906Errata Page