# Day 24

#### Task 30 — Communication protocols Day 24: You can't hurt SOC-mas, Mayor Malware! <a href="#d6f0" id="d6f0"></a>

**1. What is the Flag?**

1. Start the Machine, open a Terminal, and navigate to `cd ~/Desktop/MQTTSIM/challenge/`
2. Type `./challenge.sh` and open wireshark.
3. Click any in Interface and apply `mqtt` filter.
4. Click on the Subscribe request and note down the topic value.
5. Now Type the below command with the Topic value which turns on the Lights. `mosquitto_pub -h localhost -t "some_topic" -m "on"`

```typescript
CopyTHM{Ligh75on-day54ved}
```


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