Missingno's Memory Dump

Solution Write-up

#Verification Steps:

1. Run file missingno.bin -> returns unknown data block due to zeroed-out magic bytes.

2. Open in a hex editor (CyberChef, xxd, or Ghex) and identify the secondary chunks matching standard PNG (IHDR).

3. Repair the first 4 bytes to 89 50 4E 47.

4. The image now opens to show a visual image, but looking at the raw trailing strings of the file (via strings missingno.bin or scrolling to the bottom of a hex editor) reveals an obfuscated ASCII string: aGFja2Vtb257bTFzczFuZ24wX2g0eF9mMHVuZH0=

5. Recognize that the trailing character distribution indicates Base64 encoding. Decode the string to reveal the final flag:

   Command Line (Linux): echo "aGFja2Vtb257bTFzczFuZ24wX2g0eF9mMHVuZH0=" | base64 -d

   PowerShell: [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String("aGFja2Vtb257bTFzczFuZ24wX2g0eF9mMHVuZH0="))

Flag: hackemon{m1ss1ngn0_h4x_f0und}