[World misc offensive and defensive novice area 005]

[Skills] picture steganography Morse code

[Tools] Morse code decryption 

[writeup]

After the download is found to pdf, select all and copy the contents into Notepad, found that some of the government AABBB

 

 

 

 

Next, these replication AABBB to the word in a string, to replace A .B replaced -

Get -.- --- - .. .- .. - ..- ... .- - .. --- -. ... --..-- .... - .. .- - -... .---- - ...- .---- .---- -... .- .. .. ..... .-- - ...-- ..... ..... ....- - ...--

Decryption Morse code, get

CONGRATULATIONSFLAG1NV151BL3M3554G3

flag as follows:

flag{1NV151BL3M3554G3}

 

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I want to be runnin 'tis Baiyun

Exhausted sunny day

Only from the left

To the right

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Sylvia 

September 5, 2019