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Author: rootm0s

Polychaos/contrib/portable-executable-library/pe_lib/Makefile

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+OBJS = entropy.o file_version_info.o message_table.o pe_base.o pe_bound_import.o pe_checksum.o pe_debug.o pe_directory.o pe_dotnet.o pe_exception_directory.o pe_exports.o pe_imports.o pe_load_config.o pe_properties.o pe_properties_generic.o pe_relocations.o pe_factory.o pe_resources.o pe_resource_manager.o pe_resource_viewer.o pe_rich_data.o pe_section.o pe_tls.o utils.o version_info_editor.o version_info_viewer.o pe_exception.o resource_message_list_reader.o resource_string_table_reader.o resource_version_info_reader.o resource_version_info_writer.o resource_cursor_icon_reader.o resource_cursor_icon_writer.o resource_bitmap_writer.o resource_bitmap_reader.o resource_data_info.o pe_rebuilder.o
+LIBNAME = pebliss
+LIBPATH = ../lib
+CXXFLAGS = -O2 -Wall -fPIC -DPIC -I.
+
+ifdef PE_DEBUG
+CXXFLAGS  += -g -O0
+endif
+
+all: $(LIBPATH)/lib$(LIBNAME).a
+
+clean:
+	rm -f $(OBJS) lib$(LIBNAME).a
+	rm -rf ../lib
+
+lib$(LIBNAME).a: $(OBJS)
+	ar -cvr lib$(LIBNAME).a $(OBJS)
+	ranlib lib$(LIBNAME).a
+
+$(LIBPATH):
+	mkdir -p ../lib
+
+$(LIBPATH)/lib$(LIBNAME).a: lib$(LIBNAME).a $(LIBPATH)
+	cp -d lib$(LIBNAME).a ../lib

Polychaos/contrib/portable-executable-library/pe_lib/Win32/Debug/entropy.obj

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+#TargetFrameworkVersion=v4.0:PlatformToolSet=v141:EnableManagedIncrementalBuild=false:VCToolArchitecture=Native32Bit:WindowsTargetPlatformVersion=10.0.15063.0
+Debug|Win32|C:\Users\rmt01\Dropbox\WindowsBox\Kodning\Fusk\Mutation\Polychaos-master\|

Polychaos/contrib/portable-executable-library/pe_lib/Win32/Debug/file_version_info.obj

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+  version_info_viewer.cpp
+  version_info_editor.cpp
+  utils.cpp
+  resource_version_info_writer.cpp
+  resource_version_info_reader.cpp
+  resource_string_table_reader.cpp
+  resource_message_list_reader.cpp
+  resource_cursor_icon_reader.cpp
+  resource_data_info.cpp
+  resource_cursor_icon_writer.cpp
+  resource_bitmap_writer.cpp
+  resource_bitmap_reader.cpp
+  pe_rich_data.cpp
+  pe_resources.cpp
+  pe_relocations.cpp
+  pe_resource_manager.cpp
+  pe_factory.cpp
+  pe_exception.cpp
+  pe_base.cpp
+  pe_imports.cpp
+  Generating Code...
+  Compiling...
+  pe_exports.cpp
+  pe_exception_directory.cpp
+  pe_dotnet.cpp
+  pe_debug.cpp
+  pe_tls.cpp
+  pe_section.cpp
+  pe_resource_viewer.cpp
+  pe_rebuilder.cpp
+  pe_properties_generic.cpp
+  pe_properties.cpp
+  pe_load_config.cpp
+  pe_directory.cpp
+  pe_checksum.cpp
+  pe_bound_import.cpp
+  message_table.cpp
+  file_version_info.cpp
+  entropy.cpp
+  Generating Code...
+  pe_lib.vcxproj -> C:\Users\rmt01\Dropbox\WindowsBox\Kodning\Fusk\Mutation\Polychaos-master\build\Win32\Debug\pe_bliss.lib

Polychaos/contrib/portable-executable-library/pe_lib/Win32/Debug/message_table.obj

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+#include <cmath>
+#include "entropy.h"
+#include "utils.h"
+
+namespace pe_bliss
+{
+//Calculates entropy for PE image section
+double entropy_calculator::calculate_entropy(const section& s)
+{
+	if(s.get_raw_data().empty()) //Don't count entropy for empty sections
+		throw pe_exception("Section is empty", pe_exception::section_is_empty);
+
+	return calculate_entropy(s.get_raw_data().data(), s.get_raw_data().length());
+}
+
+//Calculates entropy for istream (from current position of stream)
+double entropy_calculator::calculate_entropy(std::istream& file)
+{
+	uint32_t byte_count[256] = {0}; //Byte count for each of 255 bytes
+
+	if(file.bad())
+		throw pe_exception("Stream is bad", pe_exception::stream_is_bad);
+
+	std::streamoff pos = file.tellg();
+
+	std::streamoff length = pe_utils::get_file_size(file);
+	length -= file.tellg();
+
+	if(!length) //Don't calculate entropy for empty buffers
+		throw pe_exception("Data length is zero", pe_exception::data_is_empty);
+
+	//Count bytes
+	for(std::streamoff i = 0; i != length; ++i)
+		++byte_count[static_cast<unsigned char>(file.get())];
+
+	file.seekg(pos);
+
+	return calculate_entropy(byte_count, length);
+}
+
+//Calculates entropy for data block
+double entropy_calculator::calculate_entropy(const char* data, size_t length)
+{
+	uint32_t byte_count[256] = {0}; //Byte count for each of 255 bytes
+
+	if(!length) //Don't calculate entropy for empty buffers
+		throw pe_exception("Data length is zero", pe_exception::data_is_empty);
+
+	//Count bytes
+	for(size_t i = 0; i != length; ++i)
+		++byte_count[static_cast<unsigned char>(data[i])];
+
+	return calculate_entropy(byte_count, length);
+}
+
+//Calculates entropy for this PE file (only section data)
+double entropy_calculator::calculate_entropy(const pe_base& pe)
+{
+	uint32_t byte_count[256] = {0}; //Byte count for each of 255 bytes
+
+	size_t total_data_length = 0;
+
+	//Count bytes for each section
+	for(section_list::const_iterator it = pe.get_image_sections().begin(); it != pe.get_image_sections().end(); ++it)
+	{
+		const std::string& data = (*it).get_raw_data();
+		size_t length = data.length();
+		total_data_length += length;
+		for(size_t i = 0; i != length; ++i)
+			++byte_count[static_cast<unsigned char>(data[i])];
+	}
+
+	return calculate_entropy(byte_count, total_data_length);
+}
+
+//Calculates entropy from bytes count
+double entropy_calculator::calculate_entropy(const uint32_t byte_count[256], std::streamoff total_length)
+{
+	double entropy = 0.; //Entropy result value
+	//Calculate entropy
+	for(uint32_t i = 0; i < 256; ++i)
+	{
+		double temp = static_cast<double>(byte_count[i]) / total_length;
+		if(temp > 0.)
+			entropy += std::abs(temp * (std::log(temp) * pe_utils::log_2));
+	}
+
+	return entropy;
+}
+}

Polychaos/contrib/portable-executable-library/pe_lib/Win32/Debug/pe_base.obj

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+#pragma once
+#include <istream>
+#include "pe_base.h"
+
+namespace pe_bliss
+{
+class entropy_calculator
+{
+public:
+	//Calculates entropy for PE image section
+	static double calculate_entropy(const section& s);
+
+	//Calculates entropy for istream (from current position of stream)
+	static double calculate_entropy(std::istream& file);
+
+	//Calculates entropy for data block
+	static double calculate_entropy(const char* data, size_t length);
+
+	//Calculates entropy for this PE file (only section data)
+	static double calculate_entropy(const pe_base& pe);
+
+private:
+	entropy_calculator();
+	entropy_calculator(const entropy_calculator&);
+	entropy_calculator& operator=(const entropy_calculator&);
+
+	//Calculates entropy from bytes count
+	static double calculate_entropy(const uint32_t byte_count[256], std::streamoff total_length);
+};
+}