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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. dragosr‏ @dragosr 12 Jun 2018
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      Replying to @dragosr @securelyfitz and

      and audio pwm is being used to transfer data in and out sdr style after.

      1 reply 0 retweets 0 likes
    2. Andrea Barisani‏Verified account @AndreaBarisani 12 Jun 2018
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      Replying to @dragosr @securelyfitz and

      This is a textbook case of confirmation bias. You are ignoring facts from experts as they are not the explanation you would like to hear. In combination with not making a single filesystem dump available anywhere it becomes impossible to reason with any of your analysis.

      2 replies 0 retweets 11 likes
    3. dragosr‏ @dragosr 12 Jun 2018
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      Replying to @AndreaBarisani @securelyfitz and

      How many of your raspis have an mmc1? I can give you a file system dump but it won’t help much as the fun stuff is loaded into a ramdisk from inaccessible hidden partition and only the unmodified components are available to dump. Offline forensics won’t make much headway.

      2 replies 0 retweets 0 likes
    4. Hector Martin‏ @marcan42 12 Jun 2018
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      Replying to @dragosr @AndreaBarisani and

      All of them have mmc1, you idiot. The Raspberry Pi 3 B has built-in WiFi. *SDIO* WiFi. How do you think it connects to the SoC, magic pixie dust?pic.twitter.com/buAT7zvlIH

      2 replies 0 retweets 1 like
    5. Hector Martin‏ @marcan42 12 Jun 2018
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      Replying to @marcan42 @dragosr and

      Seriously, you have *no excuse* for this stuff. The moment you saw "mmc1" you should've looked at sysfs to find out what that is used for, or the device tree to figure out how it's configured. This is just shoddy research. https://github.com/raspberrypi/linux/blob/rpi-4.14.y/arch/arm/boot/dts/bcm2837-rpi-3-b.dts …

      1 reply 0 retweets 1 like
    6. dragosr‏ @dragosr 12 Jun 2018
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      Replying to @marcan42 @AndreaBarisani and

      Don't care what it's used for there, as long as adversary has multiple control links in (probably multiple operators). Static thinking again. A few lines of code and dev will deploy other use in 15 minutes. Analysis needs to wait for control neutralization/isolation.

      1 reply 0 retweets 0 likes
    7. Hector Martin‏ @marcan42 12 Jun 2018
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      Replying to @dragosr @AndreaBarisani and

      You said "How many of your raspis have an mmc1?" and I explained to you how the answer is ALL OF THEM (of this model). Are you going to ever admit you confused something completely benign for an IOC, or just keep bullshitting forever?

      1 reply 0 retweets 2 likes
    8. dragosr‏ @dragosr 12 Jun 2018
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      Replying to @marcan42 @AndreaBarisani and

      Look at some raspi boot dmesgs and you will get what I'm talking about. I do that so often I can sometimes pick out lines that are wierd as it scrolls by even. Please stop being patronizing. Maybe these folks are already on your some of your computers. Would you know?

      1 reply 0 retweets 0 likes
    9. Hector Martin‏ @marcan42 12 Jun 2018
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      Replying to @dragosr @AndreaBarisani and

      I'm still waiting for a single piece of verifiable evidence that something is out of place. Where are these "weird" boot logs? Perhaps you should start considering that if everyone else can find a benign explanation for everything you point out, maybe the problem is in your head.

      3 replies 0 retweets 2 likes
    10. dragosr‏ @dragosr 13 Jun 2018
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      Replying to @marcan42 @AndreaBarisani and

      dragosr Retweeted dragosr

      https://twitter.com/dragosr/status/1006401154845065216?s=21 …

      dragosr added,

      dragosr @dragosr
      The same Raspi a few boots earlier but with less funny scope signals, with only mmc0 as normal. Yes, the MTP device stuff is not regular stock Rasbian either. This system card was a fresh install. pic.twitter.com/Ajr9u6Pk5K
      Show this thread
      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 13 Jun 2018
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      Replying to @dragosr @AndreaBarisani and

      The only thing that tells me is your WiFi module is not working on the second boot. Haven't you been cutting off stuff from the boards? Broken hardware is not an IOC. The first boot is normal, those mmc1 lines are exactly what is expected of a Pi 3 B.

      7:26 PM - 13 Jun 2018
      • 1 Like
      • Tom Thorogood 🏳️‍🌈
      2 replies 0 retweets 1 like
        1. New conversation
        1. dragosr‏ @dragosr 13 Jun 2018
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          Replying to @marcan42 @AndreaBarisani and

          Nah, the hardware is the same one in the picture. Stock raspi3. Here is another interesting bootlog I just replied on another thread. Lotsa weird in this one. Breakpoints went away two boots later.pic.twitter.com/kP7sTlY62J

          1 reply 0 retweets 0 likes
        2. Hector Martin‏ @marcan42 13 Jun 2018
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          Replying to @dragosr @AndreaBarisani and

          What's weird about it, other than it being BSD?

          2 replies 0 retweets 0 likes
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        1. dragosr‏ @dragosr 13 Jun 2018
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          Replying to @marcan42 @AndreaBarisani and

          The same hardware (untouched stock raspi3) in all those photos and boot-logs. Those mmc1 lines do _not_ show up on earlier boots of the same raspi. As shown in the other photo.

          1 reply 0 retweets 0 likes
        2. dragosr‏ @dragosr 13 Jun 2018
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          Replying to @dragosr @marcan42 and

          So it didn’t break. It started working :-). I’d have to check but on some installs I remove some kernel drivers (sometimes all networking and sound hardware). What could be happening here is the driver has been re-enabled. You probably don’t consider that an IOC either. :-)

          1 reply 0 retweets 0 likes
        3. Show replies

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