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Network intrusion

Discussion in 'General Security Issues and Questions' started by malopr, May 30, 2017.

  1. malopr

    malopr Established Techie7 Member

    Can and outsider gain access to your network and control your pc even if you have uncheck all of the remote access points on your pc
     
  2. Digerati

    Digerati Super Moderator Techie7 Moderator

    Yes.

    But you really need to be more specific. How do you connect to your network? Do you have a router? What version of Windows? Is it fully updated? Do you use an anti-malware solution? Is it updated? Do you use wireless? Have you changed the wifi passphrase to a strong passphrase? Are there other users of your computer? Do you (or other users of your computer) partake in risky behavior like illegal filesharing via Torrents or P2P (peer-to-peer) sites? So you visit illegal pornography or gambling sites? Are you "click happy" on unsolicited attachments, popups, links and downloads?

    My point is, it really is easy to prevent unauthorized access to a network from anyone but a professional hacker who has targeted you specifically - and that is very rare.

    Most home networks that have been hacked are done by a neighbor who guessed your wifi passphrase. Most computers are compromised by the user failing to keep Windows current then they clicked on a malicious link, letting malware in.
     
  3. malopr

    malopr Established Techie7 Member

    Connect modem with built in Wi*Fi, Widows 10 fully updated, Norton Security Suite updated. User name and passphrase were change on the Wi-Fi. The story is that prior to all these changes. Purchased new laptop, installing Microsoft Office
    window popped up saying key not activated call number clicked back and tried key again same window called number gave access to new pc after person asked for money to fix problem which was refused then person turned on web cam. Powered off pc. Mind you person had ask how many devices were on the network and are on. That pc was returned to store and replaced with a new one.
     
  4. Digerati

    Digerati Super Moderator Techie7 Moderator

    If the user gave access, that's the same as opening the door and inviting the bad guy in. It does not matter how good the security is at that point.

    I would be curious as to where the copy of Office came from, and if it was legitimate.

    I don't understand why that information would be needed. But the access was granted only to that one computer, not all devices on the network - assuming those other devices were fully updated and secure too.
    Good.
     
  5. malopr

    malopr Established Techie7 Member

    The copy of Office came from the store where the original pc was purchased.
    One more thing just now as writing this the command prompt window opened and close this is another PC which was also returned and replace. My concern is can the still be able to access the network if they got the MAC address to the modem or is it possible to get the MAC address to the modem.
    Thank you so much for the information you are providing
     
  6. Digerati

    Digerati Super Moderator Techie7 Moderator

    Without knowing anything about the store, that does not convince me that copy of Office was legitimate - and clean of malware.

    MAC addresses are easy to obtain and don't provide any security - nor are they intended to. The MAC address is primarily used by the ISP to grant access to their network, not yours.

    Without knowing anything about the command prompt, I cannot answer that. But it does not cause the hairs on my neck to go up.

    For peace of mind, I suggest you let our malware expert Broni have a look. Read this then start a new topic here.