Information Security Stack Exchange is a question and answer site for information security professionals. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. How can I know that a network card in a server was infected by a virus or not? Are there any methods to check it?
While it's theoretically possible to insert malicious code into flash memory on peripheral equipment like network cards, it's more likely to see the use of videocard GPU systems to do rainbow table cracks for special purpose hackware, etc. Specialized programming is needed that would be nation-state level targeted attack fodder.
Peripheral equipment malware would take special knowledge and techniques that would allow the device to operate normally without crashing while filtering traffic. If a theoretical hack was ever done to a network card, the only way you would ever detect it would be by analysis of the traffic coming in and out of it. Your standard anti-malware wouldn't have a clue.
It's more likely that this kind of attack would be done against routers and printers. They already have CPUs with plenty of left over clock cycles and flash memory storage that will easily hold a few minor mods. Very few viruses will infect the network card on your server. Viruses typically infect your OS or other application software. Therefore, for most purposes you don't need to worry about viruses in your network card. If you're worried about viruses, take standard steps to harden your server; search the archives for server hardening for instructions this will be OS-dependent.
It may be possible for viruses to replace the firmware on your network card with a malicious version. That'd be very bad, because then it wouldn't be detected by ordinary anti-virus software.
However, this would require a very sophisticated attack, and I don't think I can recall ever seeing this strategy used in the wild. Therefore, most people won't need to worry about this.
And remember, the best defense against viruses is: don't get infected in the first place. Keep your software up to date, use firewalls, don't run vulnerable software, etc. I know this is an oldish question but since the last post, This has been done to a bunch of nic's.
The most popular are mobile broadband or 4g lte nic's. I attended Def con this year 23, and was surprised at how easy and fast an attack could occur on nic cards firmware. Having something existing in memory would be unlikely as cost vs effort would be high for an attacker. A reboot would clear the virus and network cards and ntypically don't contain large amounts of memory to house a virus.
Using the network card as an entry to the firmware would be far more likely. So the remaining piece is to check the firmeware. You can check here if you're not sure if your computer is bit or bit.
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Share More sharing options Followers 0. Recommended Posts. Thanatos95 Posted August 22, Posted August 22, If not, any advice on where to go? Link to post Share on other sites More sharing options Root Admin. We will be happy to help. Was this reply helpful? Yes No. Sorry this didn't help. Thanks for your feedback. Thank you for posting your query in Microsoft Community Forums. What error message do you get in Device Manager? Have you made any changes to the computer prior to this issue?
I would recommend you to refer to the links provided below and check if it helps. Important: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you shouldn't disable your antivirus software. If you have to temporarily disable it to install other software, you should re-enable it as soon as you're done. If you're connected to the Internet or a network while your antivirus software is disabled, your computer is vulnerable to attacks.
Threats include any threat of suicide, violence, or harm to another. Any content of an adult theme or inappropriate to a community web site.
Any image, link, or discussion of nudity. Any behavior that is insulting, rude, vulgar, desecrating, or showing disrespect. Any behavior that appears to violate End user license agreements, including providing product keys or links to pirated software. Unsolicited bulk mail or bulk advertising. Any link to or advocacy of virus, spyware, malware, or phishing sites.
Any other inappropriate content or behavior as defined by the Terms of Use or Code of Conduct. Any image, link, or discussion related to child pornography, child nudity, or other child abuse or exploitation. Details required : characters remaining Cancel Submit. I've tried going through several support chats. My network adapter keeps disabling itself. I've uninstalled and reinstalled the drivers via advice of acer support team but still am having trouble.
It's in the college network so I don't have access to the home modem. I connect straight to the Ethernet port in the wall and my laptop though. I know it's my computer because my roommate is not having this problem. I've gone through so much trying to fix it and i'm at the point where I'm about to use my backup to go to regular windows 8.
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