Contents
What section of the PE contains the executable code?
PE section headers also specify the section name using using a simple character array field, called as Name. Below are the various common sections names available from an executable file: . text: This is normally the first section and contains the executable code for the application.
What is a PE section?
Portable executable file format is a type of format that is used in Windows (both x86 and x64). The PE file format is a data structure that contains the information necessary for the Windows OS loader to manage the wrapped executable code. Before PE file there was a format called COFF used in Windows NT systems.
What is data directory in PE file?
Data directories. Address/size pairs for special tables that are found in the image file and are used by the operating system (for example, the import table and the export table).
How does PE file work?
A PE file consists of a number of headers and sections that tell the dynamic linker how to map the file into memory. An executable image consists of several different regions, each of which require different memory protection; so the start of each section must be aligned to a page boundary.
What are non PE files?
Non-Portable Executable (non-PE) file attacks are attacks not using binary executable (EXE) or dynamic-link library (DLL) files. Visual Basic Script, JavaScript and PowerShell are the three basic examples commonly seen. Each can complete the same tasks but look different doing so, thereby avoiding detection.
What is PE Viewer?
PE Viewer is handy and user friendly tool for viewing PE structures. It has editing feature to modify PE headers for learning purposes or fixing invalid PE files. Use the tool to view Imported DLL’s and functions of any Windows 32 or 64 bit files.
What are PE tools?
PE Tools lets you actively research PE files and processes. Process Viewer and PE files Editor , Dumper , Rebuilder , Comparator , Analyzer are included. PE Tools is an oldschool reverse engineering tool with a long history since 2002 . PE Tools was initially inspired by LordPE (yoda).
Where are the number ofnames located in a PE file?
NumberofNames is the number of functions which are exported by their names. It contains information about the sections of a file. It is an array of IMAGESECTIONHEADER structure. In PE file we have some sections. each section has its own section header. The information of each header is located in section table.
What are the sub-sections of a PE file?
There are some basic sub-sections defined in the header section itself; they are listed below: Signature: It only contains the signature so that it can be easily understandable by windows loader. The letters P.E. followed by two 0’s tells everything.
What should the header of a PE file look like?
Like other executable files, a PE file has a collection of fields that defines what the rest of file looks like. The header contains info such as the location and size of code, as we discussed earlier. The first few hundred bytes of the typical PE file are taken up by the MS-DOS stub.
Why is there a.bss section in a PE file?
The .bss section type of data section represents uninitialized data. This is to reduce the size of the executable file. Since some variables may not have values until the program is executed, it becomes a waste of space to declare and allocate space in the executable file.