Hacker News: farmdve

New comment by farmdve in "Vanishing from Hyundai’s data network"

farmdve — Tue, 12 Aug 2025 06:51:49 +0000

For the CEM, I have done no modifications, yet. I have however spent a fair amount of time, reverse engineering the AW55 firmware and have discovered virtually all the maps related to the shifting process, pressures, speeds etc. I have a completely understanding of how the firmware works.

To say I am the only one with such a complete understanding and tuning abilities for it, may not be an understatement.

New comment by farmdve in "Vanishing from Hyundai’s data network"

farmdve — Mon, 11 Aug 2025 16:23:26 +0000

You guessed correctly.

New comment by farmdve in "Vanishing from Hyundai’s data network"

farmdve — Mon, 11 Aug 2025 07:00:52 +0000

I am actually fascinated by car electronics. I had heavily modified the software on mine, but it was easier than modern stuff, no encryption of the code, and even the checksum code only triggered a DTC with no consequences.

The only module that was encrypted was the main module, but it if you knew the security PIN you could do what you wanted. It was determined by people that if you observed the jitter of the CAN line fast enough, you could leak the pin via a side channel attack.

But modern car electronics are encrypted, and some probably have security processors that might trigger some irreversible states if you tamper with them. Modern cars are basically as locked up as a PS5.

New comment by farmdve in "Denuvo Analysis"

farmdve — Tue, 10 Jun 2025 18:53:13 +0000

The anti-tamper codes, if any tampering is detected will crash on undefined/unallocated regions. Meaning that if Windows ever were to overwrite that region for whatever reason, will trigger the crash.

Such was the case for SecuROM in early days. It featured the CRC checks mentioned, if any single byte was changed, including an INT (breakpoint) instruction, it would crash. Here it's unlikely that it wont crash. Rendering the game inoperable.

New comment by farmdve in "Denuvo Analysis"

farmdve — Tue, 10 Jun 2025 15:38:13 +0000

What isn't mentioned in the article is why UD2 is chosen. It is a relic from the SecuROM days, in fact, one of the developers on SecuROM is the one who also works or worked at Denuvo.

I would imagine many things from the SecuROM era live on in Denuvo.

But if you read the article you will realize that certain games will not work in the future due to Denuvo.

"This destroyed any exception-based hooking since majority of the time an exception is triggered, Windows will write an EXCEPTION_RECORD high up in unused stack space. You can probably see where this is going. Now, whenever the CPUID is hooked via an exception, that important value will become overwritten with an EXCEPTION_RECORD, causing undefined behaviour later on. I believe this can be bypassed if you attach a debugger to the process and set certain flags when it comes to exception handling, but the method of patching every hardware check is still cumbersome due to randomness anyway."

As Windows matures, behaviour can change, breaking certain stuff.

New comment by farmdve in "Poison Pill: Is the killer behind 1982 Tylenol poisonings still on the loose?"

farmdve — Tue, 03 Jun 2025 08:04:23 +0000

Didn't 23andme go bankrupt?

New comment by farmdve in "The Visual World of 'Samurai Jack'"

farmdve — Mon, 02 Jun 2025 18:56:11 +0000

I always enjoyed the near silent Samurai Jack Episodes. Especially the one with the Tower and three possessed soldiers.

New comment by farmdve in "Comma 3X: Initial Impressions"

farmdve — Fri, 16 May 2025 10:46:01 +0000

I like the concept of the Comma device. If only to get just one feature from it, adaptive cruise control.

But it requires for me to not only reverse engineer, but potentially also modify the firmware of my ABS unit to allow it to brake, which I am not comfortable doing.

New comment by farmdve in "Material 3 Expressive"

farmdve — Fri, 16 May 2025 10:11:19 +0000

I fully agree. The word I would describe this is indeed Flat.

New comment by farmdve in "GM's new turbo engine rewrites the rules of torque control-and locks out tuners"

farmdve — Thu, 15 May 2025 11:39:45 +0000

It would be an interesting reverse engineering challenge, 20 years down the road when it is more accessible.

I spent 1.5+ years on my 2005 car's ECU to reverse engineer most of the maps, since no public tuning files existed. I then went and spent 1 year on the TCM for which again, no tuning files existed. With the patent files, I was able to discover the algorithms and maps, and am even in IDA as I write this, and in Ghidra emulating some code.

New comment by farmdve in "Legendary Bose Magic Carpet Suspension Is Finally Going Global"

farmdve — Mon, 05 May 2025 10:25:47 +0000

I mean I am asking only because my government has failed to fix these roads and we've had protests that lead to nothing. They are the only connection between the rural parts of the country, as in the only ones.

You have no choice but to go at a speed useful enough to get anywhere. For me, these are real-world conditions.

New comment by farmdve in "Legendary Bose Magic Carpet Suspension Is Finally Going Global"

farmdve — Sun, 04 May 2025 13:24:11 +0000

Hello. How does this suspension handle severely neglected roads with large potholes or even off-road type with say 40-50mph? And I mean regularly, for years?

New comment by farmdve in "“Most promising signs yet” of alien life on a planet beyond our Solar System"

farmdve — Thu, 17 Apr 2025 10:56:28 +0000

Sadly it is still only a stop-gap measure. The sun is for all intents and purposes, dying a slow death.

New comment by farmdve in "Debugging memory corruption: who the hell writes "2" into my stack? (2016)"

farmdve — Tue, 31 Dec 2024 16:16:00 +0000

I remember back in the day of the Sony Satio U1, the last Symbian v5 phone, the software was horrendous(screen tearing, random OS freezes) and later, the phone abandoned. I think it was afterwards that Sony and Ericsson split?

New comment by farmdve in "What happened to the Japanese PC platforms?"

farmdve — Sun, 22 Sep 2024 16:21:45 +0000

I have done extensive reverse engineering of SH2 firmwares, at first I didn't like it, but then found it elegant.

Ask HN: How can sharing stories on Instagram DDoS my phone?

farmdve — Fri, 31 May 2024 17:31:07 +0000

So this has puzzled me how a single app can DDoS a connection of the entire phone sharing an Instagram video to your story.

Why would the Android connection manager or whatever stack is used permit an application to load the connection in such a way.

How to replicate:

1. Share short on instagram to story. 2. Watch as YouTube, Facebook and Instagram stop loading any videos or content. Browsers do not load pages.

Comments URL: https://news.ycombinator.com/item?id=40537961

Points: 1

# Comments: 1

New comment by farmdve in "Inventing Cyrillic"

farmdve — Tue, 28 May 2024 10:50:33 +0000

He did and so did I, you are just selectively ignoring them and gaslighting us.

New comment by farmdve in "Inventing Cyrillic"

farmdve — Tue, 28 May 2024 07:23:16 +0000

It is only plausible based on your own subjective views and cultural projection. As of now, it has no basis on any fact.

New comment by farmdve in "Inventing Cyrillic"

farmdve — Tue, 28 May 2024 07:19:31 +0000

Ok, and just because a few countries did it, in what way implies that Bulgaria will? Your arguments have no basis other than "Country A did it, so Bulgaria is also more likely to do it".

New comment by farmdve in "Inventing Cyrillic"

farmdve — Tue, 28 May 2024 07:13:43 +0000

For a while in the early 2000s to late 2000s there was a very widespread usage of 4 and 6 replacing the ch and sh sounds. In hindsight, this was more likely to replace the letters 'ч' and 'ш' than Latin letters.

However it died out.