> For the complete documentation index, see [llms.txt](https://docs.cooku222.kr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cooku222.kr/security/digital-forensics/dreamhack/dreamhack-grand-theft-auto.md).

# \[DreamHack] Grand Theft Auto

#### 문제 링크

<https://dreamhack.io/wargame/challenges/1362>

[Grand Theft Auto혹시 자동차🚗 해킹에 관심 있으신가요? 자동차의 CAN과 통신해서 얻은 파일을 통해 어떤 자동차인지 알아내세요!   플래그 형식 : DH{\\\[연도\\\]\\\\\[제조사\\\]\\\\\[모델명\\\]}   예를 들어, 차량이 "2014, Hyundreamhack.io](https://dreamhack.io/wargame/challenges/1362)

&#x20;

#### 문제

<figure><img src="https://blog.kakaocdn.net/dna/cj1dcp/btsNd6fa8MB/AAAAAAAAAAAAAAAAAAAAACjkvKxn691SakcbfFypx1WXO5_HMXojwG11egFWfFfr/img.png?credential=yqXZFxpELC7KVnFOS48ylbz2pIh7yKj8&#x26;expires=1782831599&#x26;allow_ip=&#x26;allow_referer=&#x26;signature=m3SpbeVZtLwDRyRwTTnlTwyyv%2Fk%3D" alt="" height="482" width="1070"><figcaption></figcaption></figure>

<figure><img src="https://blog.kakaocdn.net/dna/db9syH/btsNdXpiBkj/AAAAAAAAAAAAAAAAAAAAAINOXNyzoFUarStPt6OLzFjxrUW9IcJf8ztSo9vy5sdg/img.png?credential=yqXZFxpELC7KVnFOS48ylbz2pIh7yKj8&#x26;expires=1782831599&#x26;allow_ip=&#x26;allow_referer=&#x26;signature=ObiAPzPIiAfLQePmmiV2V89GckM%3D" alt="" height="165" width="446"><figcaption></figcaption></figure>

압축 해제 후 텍스트 파일을 여니까 이렇게 나온다.\
<https://piembsystech.com/data-identifiers-did-of-uds-protocol-iso-14229/>

[Data Identifiers (DID) of UDS Protocol (ISO 14229)Introduction To Data Identifiers (DID) of UDS Protocol Data Identifier (DID) of UDS Protocol is a unique identifier used to represent a specific data itempiembsystech.com](https://piembsystech.com/data-identifiers-did-of-uds-protocol-iso-14229/)

문제 안에 참조된 사이트인데 여기에 접속해서 저기 텍스트 파일의 헥사값의 정보를 얻으면 되는데,

<figure><img src="https://blog.kakaocdn.net/dna/1rA1Y/btsNfYtiRyS/AAAAAAAAAAAAAAAAAAAAAEzVn1g9djNn9bGeDi-XwfMaYPFnEv1Vvpa1XFjsZTmJ/img.png?credential=yqXZFxpELC7KVnFOS48ylbz2pIh7yKj8&#x26;expires=1782831599&#x26;allow_ip=&#x26;allow_referer=&#x26;signature=q2agiV0rqbOzRZMAtdUeeE0gc78%3D" alt="" height="202" width="992"><figcaption></figcaption></figure>

-> VIN 넘버로, 데이터가 담겨있고 차량 제조업체에서 포맷을 지정해주는 숫자임.\
나머지 부분은 해독하는 방법을 몰라서 지피티에게 부탁했다..

<figure><img src="https://blog.kakaocdn.net/dna/cthQeP/btsNf6LDytx/AAAAAAAAAAAAAAAAAAAAAMSlRTSsBCAdii7Qap-1nmVJ7QTRvqMGgsGpGHVS-WI1/img.png?credential=yqXZFxpELC7KVnFOS48ylbz2pIh7yKj8&#x26;expires=1782831599&#x26;allow_ip=&#x26;allow_referer=&#x26;signature=wnz%2FRP%2BTu%2FvZlJl6awoNtHNCvgs%3D" alt="" height="522" width="1072"><figcaption></figcaption></figure>

<figure><img src="https://blog.kakaocdn.net/dna/cgu3Fk/btsNgBxBfNk/AAAAAAAAAAAAAAAAAAAAAHCJ9CQSskioWSuyhlgPi_kxh3SgaSq36TAlKDEqdgnO/img.png?credential=yqXZFxpELC7KVnFOS48ylbz2pIh7yKj8&#x26;expires=1782831599&#x26;allow_ip=&#x26;allow_referer=&#x26;signature=mokKAvN8dxnhNiCpoiO3YCHwuSE%3D" alt="" height="603" width="1022"><figcaption></figcaption></figure>

<figure><img src="https://blog.kakaocdn.net/dna/tjSh5/btsNffCDkGO/AAAAAAAAAAAAAAAAAAAAALVtwv5I9CBAq7pY7Gv1fqE2si9DVt8O5kZZGIhgQ_1i/img.png?credential=yqXZFxpELC7KVnFOS48ylbz2pIh7yKj8&#x26;expires=1782831599&#x26;allow_ip=&#x26;allow_referer=&#x26;signature=NbWeXNQXNfELZJ9Wn3g%2F3pXT7tk%3D" alt="" height="432" width="977"><figcaption></figcaption></figure>

<figure><img src="https://blog.kakaocdn.net/dna/UHizM/btsNfo65r6A/AAAAAAAAAAAAAAAAAAAAAGS3PM8K3ANMWixEdcBFQd9s1-an_XuTCScYfxC5Gr0T/img.png?credential=yqXZFxpELC7KVnFOS48ylbz2pIh7yKj8&#x26;expires=1782831599&#x26;allow_ip=&#x26;allow_referer=&#x26;signature=xdFi%2BuwgDzpkggXyTUrwNfONUaU%3D" alt="" height="322" width="977"><figcaption></figcaption></figure>

16진수를 아스키코드로 변환 -> WDDHF5GB5BA270866\
<https://www.faxvin.com/order/decoder?vin=WDDHF5GB5BA270866>&#x20;

[VIN Decoding... | FAXVINPlease wait Decoding WDDHF5GB5BA270866www.faxvin.com](https://www.faxvin.com/order/decoding?vin=WDDHF5GB5BA270866)

요 사이트 들어가서 변환하면 된다(url 보면 해당 아스키 코드에 대한 vin값을 해독하는 링크로 이동하게 되어있다)

<figure><img src="https://blog.kakaocdn.net/dna/coN8HO/btsNfGNgqhS/AAAAAAAAAAAAAAAAAAAAACGOhcm5jxm-8kYS3suc24srSaARRZCf8y5_oSB4J2Qz/img.png?credential=yqXZFxpELC7KVnFOS48ylbz2pIh7yKj8&#x26;expires=1782831599&#x26;allow_ip=&#x26;allow_referer=&#x26;signature=FjNVx9YR1YpbDr3g1ciOIV7yw1Q%3D" alt="" height="752" width="1437"><figcaption></figcaption></figure>

```
DH{2011_Mercedes-Benz_E-Class} #플래그 값
```

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