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Simple decoding routine for Mirai encoded strings
import sys
def decode(input):
key = 0xdeadbeef
k1 = key & 0xFF
k2 = (key>>8) & 0xFF
k3 = (key>>16) & 0xFF
k4 = (key>>24) & 0xFF
output = ""
for n in input:
output += chr(ord(n)^k4^k3^k2^k1)
print output
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