Function truncate

sign/sigthief.py:164–188

(exe, output)

def truncate(exe, output):
    flItms = gather_file_info_win(exe)
 
    if flItms['CertLOC'] == 0 or flItms['CertSize'] == 0:
        # not signed
        print("Inputfile Not signed!")
        sys.exit(-1)
    else:
        print( "Inputfile is signed!")

    if not output:
        output = str(exe) + "_nosig"

    print("Output file: {0}".format(output))

    shutil.copy2(exe, output)

    with open(output, "r+b") as binary:
        print('Overwriting certificate table pointer and truncating binary')
        binary.seek(-flItms['CertSize'], io.SEEK_END)
        binary.truncate()
        binary.seek(flItms['CertTableLOC'], 0)
        binary.write(b"\x00\x00\x00\x00\x00\x00\x00\x00")

    print("Signature removed. \nFIN.")


def signfile(exe, sigfile, output):