pluralsight1.py

obfuscated = map( lambda x: int(x, 16),  "65 65 65 41 03 11 1c 15".split(" "))
original =  map( lambda x: int(x, 16), "00 00 00 24 66 74 79 70".split(" "))

print obfuscated
# [101, 101, 101, 65, 3, 17, 28, 21]

print original
# [0, 0, 0, 36, 102, 116, 121, 112]

# Every place we have a 0 in the original, the obfuscated file has 101. Sounds suspicious... ;)

# Let's xor every byte in the source with the equivalent in the destination
for i, obs in enumerate(obfuscated):
    orig = original[i]
    print "%s -> %s : xor: %s" % (obs, orig, obs^orig)
    
# Boom! Headshot!

#101 -> 0 : xor: 101
#101 -> 0 : xor: 101
#101 -> 0 : xor: 101
#65 -> 36 : xor: 101
#3 -> 102 : xor: 101
#17 -> 116 : xor: 101
#28 -> 121 : xor: 101
#21 -> 112 : xor: 101