---
# System prepended metadata

title: BTLO - Meta
tags: [Digital Forensics, BTLO]

---

# BTLO - Meta
Challenge: https://blueteamlabs.online/home/challenge/meta-b976cec9e2

:::spoiler TOC
[TOC]
:::

## Scenario
> The attached images were posted by a criminal on the run, with the caption "I'm roaming free. You will never catch me". We believe you can assist us in proving him wrong. 

## ==Q1==
> What is the camera model?
### Recon
問有關圖片相關的forensics直覺就是利用exiftool幫忙parse其中的內容，之後再慢慢extract出有用的資訊，~~或是直接丟到chatgpt幫忙extract問題的答案~~
### Exploit
```bash
$ sudo apt install exiftool -y
$ exiftool uploaded_1.JPG > uploaded1_exiftool.txt
$ exiftool uploaded_2.png > uploaded2_exiftool.txt
```
[chatgpt紀錄](https://chat.openai.com/share/6b38b409-1dec-4245-bb14-6a6fe98160af)

:::spoiler Flag
Flag: `Canon EOS 550D`
:::
## ==Q2==
> When was the picture taken?
### Exploit
這個也是直接看exiftool parse出的Create Date info就好

:::spoiler Flag
Flag: `2021:11:02 13:20:23`
:::
## ==Q3==
> What does the comment on the first image says?
### Exploit
直接看Comment的欄位就有了

:::spoiler Flag
Flag: `relying on altered metadata to catch me?`
:::
## ==Q4==
> Where could the criminal be?
### Exploit
這個直接以圖搜圖，就看到類似的建築物在加德滿都

:::spoiler Flag
Flag: `Kathmandu`
:::