PE64: Replace manual PE checksum calculations with Win32 API call instead.
I was trying to avoid using Win32 API calls in this project for the most part, however, this calculation has multiple conditions that can alter its result. Steamless was only producing proper checksums about 40% of the time as a result of this. Instead, the project will now use the system API call 'MapFileAndCheckSum' to calculate the checksum properly.
AutomaticPlugin - Added detection and logging output to mention if a file is most likely not packed with SteamStub.
Core - Fixed issue with AutomaticPlugin not properly initializing.
Unpacker v2.0 (x86) - Adjusted how the code section RVA is determined. (Moved a second check to 'optional feature' state for now.)
API: Add new option RecalculateFileChecksum to allow unpacked files to have their PE checksum recalculated.
API: PE32 - Add new functionality to Pe32Helpers to recalculate a PE file checksum.
Unpackers: (x86) Add support for new RecalculateFileChecksum setting.
64bit handling to be added soon.
Core: Add UI option to enable/disable the new zero DOS stub data option.
Unpackers: Add support for new zero DOS stub data option.
API: `DontRealignSections` and `ZeroDosStubData` are now default enabled as this is the general 'correct' way to handle most files. (Some files do require the section alignment to happen and some files may use the DOS stub for self-validation and such. Adjust accordingly when using Steamless.)
This unpacker is currently considered beta. Since I only have 1 sample that uses this variant at the moment, it is not possible to confirm the data and signatures being used are consistent across the board. This variant is also very basic and does not seem to include any means of real protection. (ie. encrypting the code section.) I'd assume this version also did not support x64 files or TLS callbacks so most of the work the other variants can do is left out until other samples prove this needs to support those kinds of features.
API: PE36 Adjusted FindPattern to return a long instead of uint. Default return is now -1.
Unpackers: Updated all usages of FindPattern to reflect new API change.
Unpacker: v30.x64 - Add support for handling files packed with TlsCallback overrides.
This feature is currently only supported in this variant for the time being. (Until other samples are provided that have a TlsCallback override for the other variants.)
Notes on how this file type works can be found here: https://github.com/atom0s/Steamless/issues/20#issuecomment-1078821463
This fixes: #20
Core: Add support for new disable section realignment option.
Unpacker: v20.x86 - Add support for new disable section realignment option.
Unpacker: v21.x86 - Add support for new disable section realignment option.
Unpacker: v30.x86 - Add support for new disable section realignment option.
Unpacker: v30.x64 - Add support for new disable section realignment option.
Unpacker: v31.x86 - Add support for new disable section realignment option.
Unpacker: v31.x64 - Add support for new disable section realignment option.
Unpacker: v31.x64 - Adjust size of data searched when determining the variant version. Fixes #56
Misc: Update project copyrights.
Misc: Remove some unused/dead code from the UI.
Update Paypal links to use newer Paypal.me format.
Fix issue with structure size casting that can cause an exception when trying to read a stub header structure.
Fix typo's on some spelling.
Added new UseExperimentalFeatures option.
Added new dynamic offset reader for v2 stub parser to better support more files. (experimental feature)
General code cleanup.
