MarkJFernandes

Tinkerer

Comments

  • I currently have the impression that USB programmers can be used to reprogram BIOS EEPROM firmware chips without the computer needing to be turned on. Using a USB programmer could have been the way forward. But I realised that all the different firmware chips in the system could potentially have malware back-doors (such…
  • Hello billsey, Read your exchange with aajm. I have a question about the re-installing of the BIOS firmware. You probably don't know the answer to it because you probably have never experienced the situation, but anyway, do you know whether, if I un-solder the firmware chips so as to install blank chips (perhaps with a…
  • Hello JackE, Thanks for looking into this (sorry about the delay in responding). You've written that some weirdness in the SNID & UUID and model descriptors would likely be shown in the case that the firmware had been compromised. Whilst not saying this is untrue, is it possible for you to link to some web-page or site at…
  • Found some BIOS/UEFI information regarding the Extensa 2511G model here. Unfortunately, my model is the one without the 'G' on the end, so this information probably does not fully apply to my laptop. Was wondering whether maybe some of it does apply though, like the vendor perhaps also being "Insyde Corp." Anyone know?…
  • Just been reading about flashing BIOS/UEFI firmware on the internet. It seems that I could probably do what I wanted if there were a JTAG port on the motherboard. Been looking at photos, and looks like there isn't one. Does anyone know for sure? Thanks, Edited the content to hide personal information
  • StevenGen said: Laptop details Name: Acer Extensa 2511 Model Name: EX2511 Part Number: NX.EF6EK.001 Thanks, Mark Fernandes
  • As requested, see photos below: There were no hidden options and no Advanced tab. Thanks, Edited the content to hide sensitive and personal information
  •  As requested, see phone shots below: Thanks, Edited the content to hide personal information
  • Hello billsey, thanks for your insights. I was running Norton Security. Previously, I think I recall using Malwarebytes. I'm not switching the computer on with the system drive attached because of the chance of malware being in the BIOS/UEFI. Ideally, I would junk this system, but I'm on too much of a tight budget at the…
  • Thanks, this is great news. I would also like to disconnect the Bluetooth technology from the system. Looking on the internet, it seems that maybe the Bluetooth technology is also on the WiFi card. Can you at all help with this? Thanks, Edited the content to hide personal information
  • Thanks for this detailed explanation as to the security mechanisms in place for UEFI. I've actually compiled a Wikibooks book on end-user computer security as a result of my security breach, and so what you have written is of even more interest to me in respect of the book. Some questions: 1) You've written that CMOS…
  • Model Name: EX2511 Part Number: NX.EF6EK.001 Thanks, Edited the content to hide personal information
  • Yes, that might be possible, but unfortunately I suspect it may be integrated on the motherboard. The Acer support documentation for the laptop doesn't provide much detail about things like the motherboard chipset, etc. I've contacted Acer Support and I'm hoping they might provide me with more technical details on the…
  • Hello Jack, Unfortunately, I'd prefer not to switch on the computer even with the HDD disconnected, because of the potential of malware in the firmware. It's possible that my security credentials (such as passwords) have been copied over to the firmware, and that when I turn on the computer, using technologies such as…
  • The UEFI/BIOS can load even without the drive connected. In fact, there isn't much of a link between the drive and the UEFI/BIOS. Reading about Secure Boot on Wikipedia (https://en.wikipedia.org/wiki/Unified_Extensible_Firmware_Interface#Secure_boot), it seems that it only protects malware in the OS. Since I'm concerned…
  • I'm not switching the computer on because the BIOS/UEFI could have malware in it. That includes turning it on to access the BIOS menu as that would be triggering the potentially malware-infected BIOS. Kind regards, Edited the content to hide personal information
  • The computer appeared to be remote-controlled whilst in Windows. I had suspected that that might be the case, but thought perhaps maybe I was just imagining it. Then one day, there was very clear evidence of it, and then I presumed from that point onwards that the computer had been hacked. If I can turn on the computer,…
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