refactor: fix a bug and cleanup

pe/derbackdoorer.py

@@ -46,7 +46,7 @@ Code section size : {sect_size}
 ''')
 
         offset = int((sect_size - len(self.shellcodeData)) / 2)
-        logger.debug(f'Inserting shellcode into 0x{offset:X} offset.')
+        logger.info(f'Inserting shellcode into 0x{offset:X} offset.')
 
         self.superpe.pe.set_bytes_at_offset(offset, self.shellcodeData)
         self.shellcodeOffset = offset

pe/superpe.py

@@ -132,8 +132,12 @@ class SuperPe():
                 iat[dll_name].append(IatEntry(dll_name, imp_name, imp_addr))
         return iat
 
+
     def write_code_section_data(self, data: bytes):
         sect = self.get_code_section()
+        if len(data) != sect.SizeOfRawData:
+            logger.error(f'New code section data is larger than the original! {len(data)} != {sect.SizeOfRawData}')
+            return
         self.pe.set_bytes_at_offset(sect.PointerToRawData, data)