mirror of
https://github.com/space-wizards/RobustToolbox.git
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72 lines
2.3 KiB
Python
Executable File
72 lines
2.3 KiB
Python
Executable File
#!/usr/bin/env python3
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# exe_set_subsystem
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# Copyright (c) 2020 20kdc
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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import sys
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import struct
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if len(sys.argv) != 3:
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print("exe_set_subsystem.py <EXE> <SUBSYSTEM>")
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print(" alters EXE in-place to change it's subsystem to SUBSYSTEM")
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print("")
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print("SUBSYSTEM values:")
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print(" 2: GUI")
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print(" 3: Console")
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sys.exit(1)
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file = open(sys.argv[1], "r+b")
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if file.read(2) != b"MZ":
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print("Header must be 'MZ'.")
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sys.exit(2)
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file.seek(0x3C)
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peSignatureOfs = struct.unpack("<I", file.read(4))[0]
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print("PE Signature Ofs: " + str(peSignatureOfs))
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file.seek(peSignatureOfs)
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if file.read(4) != b"PE\x00\x00":
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print("PE Signature must be 'PE'.")
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sys.exit(3)
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peHeader = struct.unpack("<HHIIIHH", file.read(20))
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optHeaderOfs = peSignatureOfs + 4 + 20
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print("Opt. Header Ofs: " + str(optHeaderOfs))
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subsystemOptOfs = 0
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# This is the hard bit.
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# Or not.
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# Expected these to be in different places.
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if peHeader[0] == 332:
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subsystemOptOfs = 68
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elif peHeader[0] == 0x8664:
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subsystemOptOfs = 68
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else:
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print("Unable to handle machine: " + str(peHeader[0]))
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sys.exit(4)
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subsystemOfs = optHeaderOfs + subsystemOptOfs
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file.seek(subsystemOfs)
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print("Current Subsystem: " + str(struct.unpack("<H", file.read(2))[0]))
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file.seek(subsystemOfs)
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file.write(struct.pack("<H", int(sys.argv[2])))
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file.close()
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print("Done!")
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