import struct, sys, io
sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8', errors='replace')

data = open('HAVOC_NOCD.EXE','rb').read()
FO2VA = lambda fo: fo + 0x400C00

# Search for "corrupted" and "unavailable" strings
for needle in [b'corrupt', b'unavail', b'CORRUPT', b'UNAVAIL', b'not found', b'NOT FOUND',
               b'cannot', b'CANNOT', b'missing', b'MISSING', b'invalid', b'INVALID']:
    idx = 0
    while True:
        pos = data.find(needle, idx)
        if pos == -1: break
        # Print surrounding context
        start = max(0, pos - 4)
        end = min(len(data), pos + 60)
        snippet = data[start:end]
        printable = ''.join(chr(b) if 32 <= b < 127 else '.' for b in snippet)
        print("FO 0x%05x VA 0x%08x: %s" % (pos, FO2VA(pos), printable))
        idx = pos + 1