shellcode
Noun
Meaning
shellcode (countable and uncountable, plural shellcodes)
(computing) A small piece of code, used as the payload of a virus or other malware, that launches a shell so that the attacker can control the compromised computer.
Examples
As a result, it has become common practice for exploit writers to compose the no-op sled with randomly chosen instructions which will have no real effect on the shellcode execution.
The exploit includes a relatively benign shellcode, which simply writes a magic value to address 0x200000 in the firmware’s RAM, signalling successful execution.
It also will cover processes involved in constructing and testing shellcode which are usually left out in most buffer overflow tutorial.
Participants shall get insights into discovery and verification of vulnerabilities, finding the entry points, gaining control of program flow, choices of shellcode and finally writing a working exploit for the vulnerability.
Signature Based IDSes are not efficient against nation-state-sponsored attackers which use custom shellcode encoders in an exploit.
Switch to Long Mode and trigger Interrupt 0x29 with the R11 register set to (the shellcode address).