Evidence.zip

As part of CSAW CTF's ongoing efforts to terminate cheaters with extreme prejudice, we were supposed to have evidence incriminating a handful of teams in this zip file. I do not know what happened, but I do not think the evidence actually made it in there...

Solution

Write up by: Alan Huang

Running the zip file through strings reveals some interesting strings at the end of the file:

galf
out/rxo802ayx4
3ht{
out/zhatnf5maf
1iv_
out/50lshu1ue6
n4i1
out/14o803swdq
_3w_
out/nppjdd2wdg
d33n
out/e9ydsxwetg
rf#_
out/0eetjrxpdm
elee
out/otuj3jrezt
neff

These segments reversed give you the flag

Flag

flag{th3_vi11ian_w3_n33d_#freeleffen}