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Mirai String Decryption

Author: Tim Blazytko

Demonstrates how to decrypt strings in Mirai samples

Description:

Script and malware sample to decrypt strings in a Mirai malware sample.

Implementation is based on Binary Ninja. Check out the following blog post for more information:

Automation in Reverse Engineering: String Decryption

Usage

  • Open sample/mirai_arm in Binary Ninja
  • Load and execute the script

To test the script with other Mirai samples, replace the function address in the following line:

target_function = bv.get_function_at(0x10778)

Contact

For more information, contact @mr_phrazer.