Is Bios Rewritten With Every BIOS Update Nitro 5 AN515-43?

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  • YusufAlp007
    YusufAlp007 Member Posts: 140 Troubleshooter
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    So that's not certain? Isn't it something that will change with very small possibilities or the coding of the virus or something?


    I realized that you were a little angry with me, so (don't get me wrong) I felt like you said it's not contagious even though it was infected outside of the update so I wouldn't write more. As I said, don't get me wrong, I'm a little obsessed, that's why I'm like this. That's why you didn't write the wrong answer to the question of whether the bios virus is only infected with an update, or because I don't want to write more, right? Like I said, I'm so obsessed with these things. @egydiocoelho

  • batmalin
    batmalin Member Posts: 4,231 Guru
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    The only way to flash a BIOS with a virus is with a SPI programmer. Any kind of modded BIOS can`t be flashed with the flash utils.

    Please click "Yes" if I have answered your question.
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  • Commodore_1995#
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    I'm not angry. I just want you to understand, that hardly a virus will infect your computer's bios. In the past, there were some types of viruses that infected the mbr. But not because of that, the computer stopped working. Today, this almost doesn't happen.

    Yes, you are correct. However, just erase the bios on the chip and rewrite the bios with the correct file again.

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  • YusufAlp007
    YusufAlp007 Member Posts: 140 Troubleshooter
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    I got it, get well soon :( I read that it can be transmitted in some reliable places, that's why I asked


    And for the last time I ask:



    A BIOS update is the only way for a BIOS virus to infect the BIOS, right? And isn't that certain? Isn't it something that will change with very small chances or the coding of the BIOS virus or the type of BIOS virus?

    @egydiocoelho

  • batmalin
    batmalin Member Posts: 4,231 Guru
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    No if there is a virus it will not flash as the update utils are checking the hash and if any modifications it will trow an error.

    Please click "Yes" if I have answered your question.
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  • YusufAlp007
    YusufAlp007 Member Posts: 140 Troubleshooter
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    What do you mean no?

    So there is no chance of it being infected other than a BIOS update, right? With very small chances, according to the coding of the virus, all known BIOS viruses can be infected with a BIOS update, but 1 of them can be infected without a BIOS update, or all BIOS viruses that we know are infected with a BIOS update, but there are no such things as BIOS viruses that we do not know can be transmitted without a BIOS update, is it DEFINITELY?



    Also, after a BIOS virus infects the BIOS itself, it goes from the BIOS to disks etc. a security vulnerability, a backdoor, etc. in the BIOS or device while passing or before or after. Can it infect the BIOS without updating the BIOS by using that vulnerability while leaving and returning again?



    Could you explain a little more after the part where you said no? @batmalin

  • batmalin
    batmalin Member Posts: 4,231 Guru
    edited October 2022
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    The SPI chip where the BIOS is stored is write protected, the only way to flash/write to it something different than an original BIOS is with a SPI programmer. So there is no way to mod the BIOS with the virus and write it with a update flash utils. Same is valid for any kind of mods including unlocked BIOS and so on. So to recap there is no way to infect your BIOS.

    Please click "Yes" if I have answered your question.
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  • YusufAlp007
    YusufAlp007 Member Posts: 140 Troubleshooter
    edited October 2022
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    Here, we can infect with things like spi programmer, and we couldn't update the BIOS if the BIOS was unwritable. @batmalin

  • batmalin
    batmalin Member Posts: 4,231 Guru
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    You will be not able to update if even 1 bit of the BIOS is modified.

    Please click "Yes" if I have answered your question.
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  • YusufAlp007
    YusufAlp007 Member Posts: 140 Troubleshooter
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    Is the system locked so I can't update or change it? And how can it be that I can't change it? @batmalin

  • batmalin
    batmalin Member Posts: 4,231 Guru
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    Again the BIOS chip is write protected, so you can`t flash non-original (modded/ infected) BIOS

    Please click "Yes" if I have answered your question.
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  • YusufAlp007
    YusufAlp007 Member Posts: 140 Troubleshooter
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    So, is it possible to update with the original BIOS update?



    If yes, how does it know if this file is original or not?


    Also, I didn't do the update with flash, I updated it by double-clicking on the BIOS file, can the hypothetically transmitted BIOS virus be transmitted like this? You said it cannot be flashed, but I did not use flash, and it may not have been used in the update that infected the bios virus. @batmalin

  • batmalin
    batmalin Member Posts: 4,231 Guru
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    1. Yes

    2. If I knew how it is checking I wouldn`t be using my SPI programmer to flash unlocked BIOS

    3. The exe file contains flasher so you are flashing the BIOS with the update.

    Please click "Yes" if I have answered your question.
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  • YusufAlp007
    YusufAlp007 Member Posts: 140 Troubleshooter
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    But can't cheating be done?


    For example, it's like a normal BIOS update, but does it contain a backdoor, or maybe there's something wrong with that controlling thing?



    Could there be a way to turn this controlling thing off somehow? So, for example, it is not a BIOS virus, but a virus on disks, and can this virus block that controlling thing in the BIOS or can it be turned off from the settings or something? @batmalin

  • batmalin
    batmalin Member Posts: 4,231 Guru
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    Not heard of such thing but if there is the BIOS mods community would know first. So for now Acer is safe.

    Please click "Yes" if I have answered your question.
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  • YusufAlp007
    YusufAlp007 Member Posts: 140 Troubleshooter
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    But there is still a possibility, right? By the way, I am using PK brand motherboard. In case it helps, a user said that only asus and gigabyte computers have BIOS viruses on their motherboards. Is this true? @batmalin

  • batmalin
    batmalin Member Posts: 4,231 Guru
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    I don`t know if it is true or not and to be honest I don`t care about other brands.

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  • YusufAlp007
    YusufAlp007 Member Posts: 140 Troubleshooter
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    What do you mean I don't care? Because my system is acer, if the computer guy didn't change it, I already had this motherboard in my laptop. @batmalin @batmalin

  • batmalin
    batmalin Member Posts: 4,231 Guru
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    What are you talking about? What MB ,what computer guy? What do you really want to hear? What is the point of this topic anyway?

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  • YusufAlp007
    YusufAlp007 Member Posts: 140 Troubleshooter
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    No need to philosophize. I was going to ask @egydiocoelho a few more questions and close the issue, but you both came and confused me and you say that you don't care about the brands other than acer.