https://github.com/c0ny1/ascii-jar

构造字节在ASCII范围内的jar
https://github.com/c0ny1/ascii-jar

Last synced: 2 months ago
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构造字节在ASCII范围内的jar

• Host: GitHub
• URL: https://github.com/c0ny1/ascii-jar
• Owner: c0ny1
• Created: 2022-02-13T06:53:37.000Z (almost 3 years ago)
• Default Branch: master
• Last Pushed: 2022-02-14T04:40:13.000Z (almost 3 years ago)
• Last Synced: 2024-08-05T17:44:25.170Z (6 months ago)
• Language: Python
• Size: 520 KB
• Stars: 70
• Watchers: 2
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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• awesome-hacking-lists - c0ny1/ascii-jar - 构造字节在ASCII范围内的jar (Python)

README

        
## 0x01 简介

该项目是为了解决[RWCTF 4th Desperate Cat](https://github.com/voidfyoo/rwctf-4th-desperate-cat)，基于[ascii-zip](https://github.com/Arusekk/ascii-zip)进行修改，生成字节均在ASCII范围的特殊jar。

#### 1.1 生成包含class的ascii jar

```bash

➜ ascii-jar python3 ascii-jar-1.py

[-] CRC:False RDL:False CDL:True CDAFL:False Padding data: 1*A

[-] CRC:False RDL:False CDL:True CDAFL:False Padding data: 2*A

[-] CRC:False RDL:False CDL:True CDAFL:False Padding data: 3*A

......

[-] CRC:False RDL:True CDL:True CDAFL:True Padding data: 247*A

[+] CRC:True RDL:True CDL:True CDAFL:True Padding data: 248*A

[+] Generate ascii01.jar success

```

#### 1.2 生成包含`META-INF/resources/`的ascii jar

```bash

➜  ascii-jar python3 ascii-jar-2.py

[-] CRC:False RDL:True CDL:True CDAFL:True Padding data: 1*A

[-] CRC:False RDL:True CDL:True CDAFL:True Padding data: 2*A

[-] CRC:False RDL:True CDL:True CDAFL:True Padding data: 3*A

[-] CRC:False RDL:True CDL:True CDAFL:True Padding data: 4*A

[-] CRC:False RDL:True CDL:True CDAFL:True Padding data: 5*A

[-] CRC:False RDL:True CDL:True CDAFL:True Padding data: 6*A

[-] CRC:False RDL:True CDL:True CDAFL:True Padding data: 7*A

[-] CRC:False RDL:True CDL:True CDAFL:True Padding data: 8*A

[-] CRC:False RDL:True CDL:True CDAFL:True Padding data: 9*A

[-] CRC:False RDL:True CDL:False CDAFL:True Padding data: 10*A

[-] CRC:False RDL:True CDL:True CDAFL:True Padding data: 11*A

[-] CRC:False RDL:True CDL:True CDAFL:True Padding data: 12*A

[+] CRC:True RDL:True CDL:True CDAFL:True Padding data: 13*A

[+] Generate ascii02.jar success

```

## 0x02 更多

* [RWCTF 4th Desperate Cat Writeup](https://mp.weixin.qq.com/s/QQ2xR32Fxj_nnMsFCucbCg)

* [RWCTF 4th Desperate Cat ASCII Jar Writeup](https://gv7.me/articles/2022/rwctf-4th-desperate-cat-ascii-jar-writeup/)