mirror of
https://github.com/dobin/SuperMega
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Dobin
57 lines
1.7 KiB
Python
57 lines
1.7 KiB
Python
from helper import *
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import pefile
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def make_shc_from_asm(asm_file, exe_file, shc_file):
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print("--[ Assemble to exe: {} -> {} -> {} ]".format(asm_file, exe_file, shc_file))
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print("---[ Assemble ASM to EXE: {} -> {} ]".format(asm_file, exe_file))
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run_process_checkret([
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path_ml64,
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asm_file,
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"/link",
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"/OUT:{}".format(exe_file),
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"/entry:AlignRSP"
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])
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if not os.path.isfile(exe_file):
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print("Error")
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return
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print("---[ EXE to SHC: {} -> {} ]".format(exe_file, shc_file))
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code = get_code_section(exe_file)
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with open(shc_file, 'wb') as f:
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f.write(code)
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return code
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#print("---[ Shellcode from {} written to: {} (size: {}) ]".format(exe_file, shc_file, len(code)))
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def get_code_section(pe_file):
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try:
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# Load the PE file
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pe = pefile.PE(pe_file)
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# Iterate over the sections
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for section in pe.sections:
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# Check if this is the code section
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if '.text' in section.Name.decode().rstrip('\x00'):
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data = section.get_data()
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data = remove_trailing_null_bytes(data)
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print(" > Code Size: {} (raw code section size: {})".format(
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len(data), section.SizeOfRawData))
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return data
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else:
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print("Code section not found.")
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except FileNotFoundError:
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print(f"File not found: {pe_file}")
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except pefile.PEFormatError:
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print(f"Invalid PE file: {pe_file}")
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def remove_trailing_null_bytes(data):
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for i in range(len(data) - 1, -1, -1):
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if data[i] != b'\x00'[0]: # Check for a non-null byte
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return data[:i + 1]
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return b'' # If the entire sequence is null bytes
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