Challenge 4

Reverse Engineering challenge and a very very very easy one…

Download the file from:

Password for downloading the file: challenge4

To run the file: java -jar “Challenge 4.jar”

or double click on the .jar in windows.

The goal is to figure out what is the password

Every 3 attempts you will be blocked for 30 seconds…

If you like this challenge, you can try “Rafael Reverse Engineering challenges” at:

Gilad

2 Comments

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Martin English

June 28, 2015 at 7:40 am

I used zip to extract the classes from Chalenge4.jar, but you still need to know a bit about how the java compiler stores strings 🙂

Former Member

Blog Post Author

July 6, 2015 at 6:22 am

To solve this easy challenge you can do the following:

2. Upload the .jar file "challenge4.jar"

3. Then, you can see all jar content

4. Inside the MyFrame.java you could see: