1 files changed, 40 insertions, 0 deletions
diff --git a/enc_file/source.cpp b/enc_file/source.cpp
new file mode 100644
index 0000000..9056764
--- /dev/null
+++ b/enc_file/source.cpp
@@ -0,0 +1,40 @@
+#include <iostream>
+#include <Windows.h>
+
+int main( ) {
+	uint8_t key{ };
+	std::cin >> key;
+	printf( "key: %d", key );
+
+	auto file = CreateFileA( "./enc.dll", GENERIC_READ, 0, 0, OPEN_ALWAYS, 0, 0 );
+	if( !file ) return 0;
+
+	auto size = GetFileSize( file, 0 );
+	if( !size ) {
+		CloseHandle( file );
+		return 0;
+	}
+
+	uint8_t* data = ( uint8_t* )( malloc( size ) );
+	if( !ReadFile( file, data, size, 0, 0 ) ) {
+		CloseHandle( file );
+		free( data );
+		return 0;
+	}
+
+	CloseHandle( file );
+
+	for( size_t i{ }; i < size; ++i ) {
+		data[ i ] ^= key;
+	}
+
+	data[ 0 ] = 'c';
+	data[ 1 ] = 'd';
+
+	FILE* f;
+	fopen_s( &f, "./out.dll", "wb" );
+	fwrite( data, 1, size, f );
+	fclose( f );
+
+	return 0;
+}
+\ No newline at end of file