Step-by-step guide to import HTB Machines to Notion

Subject At nightfall, everything lights up. A beacon emits a signal in order to be recovered. The signal is transmitted at 3.58 MHz every minute for about 30 seconds. Find the message transmitted. The flag is of the form HACKDAY{…} Find the transmitted signal According to the subject, the signal is only transmitted in the evening. By going to WebSDR F5NKP (for example) we will be able to listen to the different signals transmitted on the radio waves....

Subject Flag is typed ! Challenge analysis The file provided with this challenge is a packet capture file (.pcap). So we open it with Wireshark. We can see that the captured packets’s protocol is USB. From the title and the subject of the challenge, and the fact that we have to find a flag, we can assume that this capture is from a QWERTY keyboard. First we have to extract the captured data to be able to process them in an automated way....