FWO_FWF

FWO FWF

Misc

Challenge

As part of forensic investigations into servers operated by COViD, an investigator found this web server containing a hidden secret. Help us find the contents of this secret.

Web Server

Solution

There are 3 classes in the html. .a, .b, .c and in the embedded CSS, only .c is being shown, the others are hidden.

Modify it and we can see some texts...

Show a, hide b and c to see this text

The flag is hidden in a file

Show b, hide a and c to see this text

CSG.TXT

Visit the webpage

• http://yhi8bpzolrog3yw17fe0wlwrnwllnhic.alttablabs.sg:40731/CSG.TXT

We get this

Rmo0Y19HdTNfZkdsWTNfaTFmMW8xWTFHbAo=

Base64 decode

Fj4c_Gu3_fGlY3_i1f1o1Y1Gl

ROT Ceaser Cipher (Use this online tool: https://planetcalc.com/1434/)

ROT13	Sw4p_Th3_sTyL3_v1s1b1L1Ty

Flag

govtech-csg{Sw4p_Th3_sTyL3_v1s1b1L1Ty}