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Which of the following is a common technique used in reverse engineering of mobile applications?

  1. Network sniffing

  2. Static analysis

  3. Session fixation

  4. Script injection

The correct answer is: Static analysis

Static analysis is a common technique used in the reverse engineering of mobile applications because it involves examining the application's code without executing it. This method allows security professionals and ethical hackers to dissect the app's logic, identify vulnerabilities, and understand how the app functions. By analyzing the compiled code or resources, they can discover issues like hardcoded credentials, insecure data storage, and potential vulnerabilities that could be exploited. During static analysis, various tools can be utilized to analyze the bytecode of the mobile application or even the original source code if accessible. This analysis can expose security flaws that might not be visible through dynamic testing methods, making it a vital component of reverse engineering techniques. Other methods such as network sniffing might provide insights related to data transmission and potential interception of sensitive information but do not focus directly on dissecting the application's internal structure. Session fixation and script injection are more related to web application vulnerabilities and are not specifically connected to the reverse engineering process of mobile applications.