35 lines
986 B
Markdown
35 lines
986 B
Markdown
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## The adventures of Boris Ivanov. Part 1.
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The main idea finding the flag is to tangle image RGB filters with Stegsolver.
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#### Step-1:
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After downloading `Boris_Ivanov_1.jpg` from the cloud, I tried all basic Forensics Techniques, but I got nothing.
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<img src="Boris_Ivanov_1.jpg">
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NULL. NATA. ZIP.
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#### Step-2:
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I tried to use the Stegsolver application. For those who don't have it, can get the script from here:
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https://github.com/zardus/ctf-tools/tree/master/stegsolve
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After installation is complete, running `./stegsolver.jar` will launch the application.
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#### Step-3:
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After reading the challenge again and again we can notice the word KGB may bay relate to Steganography by RGB.
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In Stegsolver, there are 1000 offsets possible.
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#### Step-4:
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Luckily, after analyzing the image, I started to filter backwards and got flag at <strong>898</strong> offset.
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I got the flag there.
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<img src="Flag.png">
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#### Step-5:
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Finally the flag becomes:
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`flag{d0nt_m3s5_w1th_th3_KGB}`
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