February 2012
Intermediate to advanced
800 pages
23h 55m
English
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Lab 9-3 Solutions
Short Answers
The import table contains kernel32.dll, NetAPI32.dll, DLL1.dll, and DLL2.dll. The malware dynamically loads user32.dll and DLL3.dll.
All three DLLs request the same base address: 0x10000000.
DLL1.dll is loaded at 0x10000000, DLL2.dll is loaded at 0x320000, and DLL3.dll is loaded at 0x380000 (this may be slightly different on your machine).
DLL1Printis called, and it prints “DLL 1 mystery data,” followed by the contents of a global variable.DLL2ReturnJreturns a filename of temp.txt which is passed to the call toWriteFile.Lab09-03.exe gets the buffer for the call to
NetScheduleJobAddfromDLL3GetStructure, which it dynamically resolves.Mystery data 1 is the current process identifier, mystery data 2 is the handle to ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.