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26 lines
999 B
Python
26 lines
999 B
Python
from passport.patchers import Patch, Patcher
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from passport.util import *
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class BootCounterPatcher(Patcher):
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"""MECC "limited backup" disks contain code to self-destruct after a certain number of boots"""
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def should_run(self, track_num):
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return track_num == 1
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def run(self, logical_sectors, track_num):
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if not find.wild_at(0x00, logical_sectors[0],
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b'\xAD\xF3\x03'
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b'\x8D\xF4\x03'
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b'\x20\x2F\xFB'
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b'\x20\x93\xFE'
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b'\x20\x89\xFE'
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b'\x20\x58\xFC'
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b'\xA9\x0A'
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b'\x85\x25'
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b'\x2C' + find.WILDCARD + find.WILDCARD + \
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b'\xCE\x17\x18'
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b'\xD0\x05'
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b'\xA9\x80'
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b'\x8D\x18\x18'): return []
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return [Patch(1, 0, 0x00, b'\x4C\x03\x1B', "bootcounter")]
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return patches
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