Logo Sucks Bad

• Download the PNG Image
• Try analysing using zsteg.

• We shall see the Lorum Ipsum text there in the b1,rgb,lsb,xy payload.
• Let’s extract the entire LSB payload from the Image.

zsteg -E <PayLoad> <File Name>zsteg -E b1,rgb,lsb,xy logo.png

• We shall see the flag in between the text.

nullhsctf{th4_l3est_s3gnific3nt_bbbbbbbbbbbbb}