.. / Functions

Reverse shell

It can send back a shell to an attacker giving unauthorized remote shell access.

File download

A binary with download capabilities.

Bind shell

binds to a certain port on the victim’s machine.

File upload

It can exfiltrate files on the victim’s machine.

Sudo

It runs in privileged context and may be used to access the file system, escalate or maintain access with elevated privileges if enabled on sudo.

Web shells

A piece of code or a script running on a server that enables remote

Limited SUID

It runs with the SUID bit set and may be exploited to access the file system, escalate or maintain access with elevated privileges working as a SUID backdoor. If it is used to run commands it only works on systems like Debian (<= Stretch) that allow the default sh shell to run with SUID privileges.

This example creates a local SUID copy of the binary and runs it to maintain elevated privileges. To exploit an existing SUID binary skip the first command and run the program using its original path.