We downloaded the file, witch was a dump of a Linux Centos 7 image.


And using “strings” command on the file, among other informations, we found a long base64 encoded string.


By simply decoding it with this command :

```
echo "c2hrQ1RGe2wzdHNfc3Q0cnRfdGgzXzFudjNzdF83NWNjNTU0NzZmM2RmZTE2MjlhYzYwfQo=" | base64 -d
```

We obtained the flag :
**shkCTF{l3ts_st4rt_th3_1nv3st_75cc55476f3dfe1629ac60}**

Original writeup (https://www.0xbluesky.io/CTF/WRITEUP/Sharkyctf2020.html#EZDUMP-BUILD-ME).