This blog post has been created for completing the requirements of the SecurityTube Linux Assembly Expert Certification. The task for 7/7 assignment is to create a custom crypter using any existing encryption schema. It can be written in any programming language of one’s choice.

This blog post has been created for completing the requirements of the SecurityTube Linux Assembly Expert Certification. The task for 6/7 assignment is to take up to 3 shellcodes from shell-storm and create polymorphic versions of those samples to beat pattern matching. The requirement is that the polymorphic versions cannot be larger than the 150% of the existing shellcode.

This blog post has been created for completing the requirements of the SecurityTube Linux Assembly Expert Certification. The task for 5.3/7 assignment is to analyse at least 3 shellcode examples created using Msfpayload for linux/x86_64. Since msfpayload is outdated, I used msfvenom instead. The analysis of the shellcodes is carried out using the gdb debugger and 3/3 shellcode analysed in this article is the shell_reverse_tcp payload.

This blog post has been created for completing the requirements of the SecurityTube Linux Assembly Expert Certification. The task for 5.2/7 assignment is to analyse at least 3 shellcode examples created using Msfpayload for linux/x86_64. Since msfpayload is outdated, I used msfvenom instead. The analysis of the shellcodes is carried out using the gdb debugger and 2/3 shellcode analysed in this article is the shell_bind_tcp payload.

This blog post has been created for completing the requirements of the SecurityTube Linux Assembly Expert Certification. The task for 5.1/7 assignment is to analyse at least 3 shellcode examples created using Msfpayload for linux/x86_64. Since msfpayload is outdated, I used msfvenom instead. The analysis of the shellcodes is carried out using the gdb debugger and 1/3 shellcode analysed in this article is the linux/x64/exec payload.