Rating:
## Monke
We got an image of a monkey.
If we use the command 'strings' on the image, we can see at the end the string : `Z3JlcENURntyM2ozY3RfaHVtNG4xdHlfZzBfYjRja190MF9tMG5rM30K` which is base64 encoded.
Then we can use `echo 'Z3JlcENURntyM2ozY3RfaHVtNG4xdHlfZzBfYjRja190MF9tMG5rM30K' | base64 -d ` to decode the b64 string and so we get the flag :
grepCTF{r3j3ct_hum4n1ty_g0_b4ck_t0_m0nk3}