Project Sekai - ✅-misc-lost

Project Sekai

🔒 BYUCTF 2023 / ✅-misc-lost

Lost - 500 points

Category: Misc Description: Help! My friend is lost and all I have is this folder of photos. https://byu.box.com/s/ld7tcfr2ievkrusdcgba9z0az51g6dt0 Files: No files. Tags: Hard

Sutx pinned a message to this channel. 05/19/2023 10:26 AM

@Legoclones wants to collaborate

@rubiya wants to collaborate

11:41

@afterworld wants to collaborate

@Deleted User wants to collaborate

15:16

@jayden wants to collaborate

:(

Image attachment

15:18

bruh this isnt geosint

15:19

what the fuck is this challenge?

ill check this

there's thousands of images of random places

15:21

some are lower resolution than the other

programming chal probably

15:21

check metadata

definitely

or data

ill try exif

looks like 12 images a group

15:21

prob see whats changed in 12

ig tell me concept and i can code it

idk concept, need trial and error

15:23

still checking last modified date

Deleted User

ig tell me concept and i can code it

each 12 photos, check if their data are the same (rgb or bytes)

theres random ass gps coords in the exif of the images

ah

15:23

are they the same acros 12 photos

looks like it differs slightly

lol i dont want the draw coord chal

it might be a draw coord chall

15:24

lmao

250x12 then

15:25

draw 250 dots

15:25

or sth

15:25

250 chars

15:25

will need to see

divide amount of images by 12

15:25

that's how many chars

250

15:25

idts

yeah idk

could be multiple to 1 char

15:25

will see

15:25

gonna check first few

15:30

{'geolocation_lat': 40.0023, 'geolocation_lng': -99.99980000000001}
{'geolocation_lat': 40.0023, 'geolocation_lng': -99.9997}
{'geolocation_lat': 40.0023, 'geolocation_lng': -99.9946}
{'geolocation_lat': 40.0023, 'geolocation_lng': -99.994}
{'geolocation_lat': 40.0023, 'geolocation_lng': -99.9939}
{'geolocation_lat': 40.0023, 'geolocation_lng': -99.99380000000001}
{'geolocation_lat': 40.0023, 'geolocation_lng': -99.9937}
{'geolocation_lat': 40.0023, 'geolocation_lng': -99.9932}
{'geolocation_lat': 40.0023, 'geolocation_lng': -99.9931}
{'geolocation_lat': 40.0023, 'geolocation_lng': -99.993}
{'geolocation_lat': 40.0023, 'geolocation_lng': -99.9919}
{'geolocation_lat': 40.0023, 'geolocation_lng': -99.9918}

15:31

first 12

15:31

so only lng changes

15:31

its definitely drawing

15:31

maybe depending on lat or long changes, 0 or 1

15:31

sth like that

15:31

gonna see the next set

15:31

ah

15:31

i see

15:32

time to draw them

15:34

Image attachment

15:34

yeah

15:34

its def flag

sahuang

used /ctf solve

✅ Challenge solved.

nice

ez

15:37

Image attachment

1

was this change in lat and change in lng

15:40

for x and y?

just plot them

15:41

x-40, y+100

why is x and y plot so small then

15:42

0.005

x is 40.0xx y is -99.yyy

sahuang

x-40, y+100

did this

I see

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