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Results tagged with shellcode
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user 2264
In computer security, a shellcode is a small piece of code used as the payload in the exploitation of a software vulnerability. It is called "shellcode" because it typically starts a command shell from which the attacker can control the compromised machine, but any piece of code that performs a similar task can be called shellcode.
3
votes
Shellcode Segfault mid execution?
This isn't really a security question, it's a low-level architecture one. But to get you started, I'd suggest looking in to what a Segmentation Fault actually represents.
Specifically, it happens on …
- 83.8k
2
votes
Accepted
How to achieve interactive shell attack?
Graphical shells are heavy on the bandwidth, unreasonably complex, and usually unnecessary anyway. "Shell" in an exploitation context usually refers to a text-only shell; bash or sh or zsh for example …
- 83.8k
0
votes
How to deal with MySQL's Errcode 13 when trying to write a shell
Ideally (if you're the server administrator) the file locations accessible by MySQL versus those accessible by Apache and PHP do not intersect. Typically /tmp is accessible to all, but a well-designed …
- 83.8k
2
votes
How to find malicious images in server?
If you know what you're looking for, then you simply examine the data within the file to see if it matches the pattern you're looking for. How you do that depends on what sort of pattern it is; you co …
- 83.8k
6
votes
NX bit: does it protect the stack?
By marking the stack as non-execute, you effectively prevent code inserted into the stack from running. You're not protecting the stack from modification; rather, you're causing a hard crash when the …
- 83.8k