DEF CON 30 - Cesare Pizzi - Old Malware, New tools: Ghidra and Commodore 64

Рет қаралды 33,567

Жыл бұрын

Why looking into a 30 years old "malicious" software make sense in 2022? Because this little "jewels", written in a bunch of bytes, reached a level of complexity surprisingly high. With no other reason than pranking people or show off technical knowledge, this software show how much you can do with very limited resources: this is inspiring for us, looking at modern malicious software, looking at how things are done and how the same things could have been done instead.

Пікірлер: 67

@elitequeef Жыл бұрын

I come from the 90s shitty 56k modem era. Pranking, punting, playing mp3s loudly and all that jazz was what we would do to each other. No money involved and no ill intent. Just pure stupid fun and to see who could o whom. :P Thanks. I never had a commodore. I started with a cyrix clone ibm computer and DOS and Win 3.11. My mom lied to me and said if I wanted to be good at the computer I would be able to do everything in the DOS Manual. Needless to say, I am a backend linux administrator who knows DOS. Cheers.

@ME3WarrantyVoider Жыл бұрын

thanks for using my loader plugin! happy it was useful :)

@bZxc-no3ez Жыл бұрын

Thanks to you for your work on that!

@LadyB_miniatures 10 ай бұрын

@@bZxc-no3ez❤

@pythagorasgonzalez7137 10 ай бұрын

Where can I find that plug-in?

@joecincotta5805 Жыл бұрын

Small correction: register $00 and $01 and used for data direction and bank switching ROM, custom chips and RAM into memory - you have 64k of ram but you share with custom chips registers (like the audio SID) BASIC and ROM and you use the $01 to juggle them.

@bZxc-no3ez Жыл бұрын

Thanks!

@PatRiot- Жыл бұрын

I have not the slightest idea about any of this but I keep watching them 😅

@nNiceDreamsMadeTrue Жыл бұрын

keep on it through broad interest we widen perspective I also watch a lot and I never feel that I've wasted time if I got to grasp a new concept, even if it doesn't get put into practice directly in my lifetime

@-_--_-2106 10 ай бұрын

@@nNiceDreamsMadeTruewise words 👏🏻

@absurdengineering Жыл бұрын

It’s not meant to be BU£A. That’s just what the character set supported. It’s BUŁA - in Polish it means approximately “a big ass roll” or “a chunky or swollen face”. Apt name for a virus.

@bZxc-no3ez 11 ай бұрын

Correct. But it was just to keep this in the

@absurdengineering 11 ай бұрын

@@bZxc-no3ez I think you meant 8859-1 aka Latin-1. £ is not in 7 bit ASCII :)

@bZxc-no3ez 11 ай бұрын

@@absurdengineering correct :)

@joecincotta5805 Жыл бұрын

This is epic

@chupathingy5862 Жыл бұрын

22:15 that flashing screen and ascii garbage text was probably meant to simulate a decrunching routine.

@ekistic Жыл бұрын

Actually "maybe" it was to have an easy way to see whenever it was running, as you would have to press the power cartridge all the time to go to monitor mode. This first version was clearly a draft not for release.. Great to see appreciation for this kind of assembly code, as Ludwig Mies van der Rohe once told: "less is more!" :-)

@instantlyexchange 11 ай бұрын

Great video time to learn assemblu

@meowareasaservice Жыл бұрын

Subtittle correction: 17:13 "So you have LDA and SDA" it's supposed to be STA, isn't it? 21:25 "because Commodore 64 had custom ASCII codes"

@lemonjumpsofficial Жыл бұрын

SHOT THE NOOB IS BACK, AAAAAAAH I'M SO READY FOR THIS, MY BODY IS FUCKEN ON LET'S GOOOOOOOOOOO

@mariarahelvarnhagen2729 11 ай бұрын

What Specific Air Call Directs An Embraer Pilot To Pull The Bonzai Crash ?

@mariarahelvarnhagen2729 11 ай бұрын

You Can Know The Thing Was Hacked By How Many Tickets Are Sold

@mariarahelvarnhagen2729 11 ай бұрын

#Jeff'sAhoyTicket

@dollydiddums7889 Жыл бұрын

👍

@DanniDuck 11 ай бұрын

Ghidra is awesome. IDA is trash for how much it costs.