Sdctf 2021
hIDe and seek 2
Solved By : Ava and nigamelastic
- I’ve gotten some more good intel. Apparently, the following information is the location of another flag!
First piece of info : gg/4KcDWnUYMs
Second piece of info : 810237829564727312-810359639975526490
- the first piece is obviously discord:
- on opening the channel we see
sdctf{m@st3R_h@Ck3R_9999}
- which seems to be flag format, I am guessing that starts with 1 till 9999.
Rabbit Hole
The second part is obviously a unix time stamp:
810237829564727312 is Mon 4 September 1995 18:03:49.564 UTC
and
810359639975526490 is Wed 6 September 1995 03:53:59.975 UTC
-
my guess was to check the chats between the times mentioned, but they aren’t matching
-
sdctf{m@st3R_h@Ck3R_1995}–> randomly tried its incorrect -
however thanks to Ava we found it was a rabbit hole! below is the correct way to solve it.
- The numbers actually specify the discord links
-
usually the discord message links are something like this : https://discord.com/channels/675369276403744776/782835136654737429/840472812690210826
- there are three numbers, i am just taking guess :
- first number is for server
- second seems for the channel
- third seems for message
- we copy link for any message from the server we found and replace the last two numbers with the one given to us in the challenge
- https://discord.com/channels/810237829564727308/810237829564727312/810359639975526490
- boom, we get the right message
sdctf{m@st3R_h@Ck3R_4807}