Jump to content


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.

Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.


Safe to have infected PC online - But not in Workgroup?

  • Please log in to reply
3 replies to this topic

#1 Mel_3


  • Members
  • 10 posts
  • Local time:12:17 PM

Posted 08 July 2012 - 04:52 PM

- On a small Peer-to-Peer network...
- One PC is infected
- Setup is: Cable Modem connected to small Linksys Router connected to a few PC's

1 - Is it a concern that the malware could spread to other PC's in the small Workgroup?
2 - If so will this fix it while still allowing the infected PC net access...
.. turn off all clean PC's
.. remove the infected PC from the Workgroup
.. turn on the clean PC's
This way the infected PC is not in the Peer-To-Peer Workgroup but it is still sharing the same router...

Right now I'm turning off (or disconnecting) all clean PC's from the network before turning on the infected PC. This is a problem for other users.

Thanks for any help.

BC AdBot (Login to Remove)


#2 Didier Stevens

Didier Stevens

  • BC Advisor
  • 2,734 posts
  • Gender:Male
  • Local time:06:17 PM

Posted 10 July 2012 - 09:13 AM

Are the clean PCs fully patched and are there no Windows accounts on those clean PCs with weak passwords?

Didier Stevens

SANS ISC Senior Handler
Microsoft MVP 2011-2016 Consumer Security, Windows Insider MVP 2016-2019


If you send me messages, per Bleeping Computer's Forum policy, I will not engage in a conversation, but try to answer your question in the relevant forum post. If you don't want this, don't send me messages.


Stevens' law: "As an online security discussion grows longer, the probability of a reference to BadUSB approaches 1.0"

#3 quietman7


    Bleepin' Janitor

  • Global Moderator
  • 51,927 posts
  • Gender:Male
  • Location:Virginia, USA
  • Local time:12:17 PM

Posted 10 July 2012 - 01:45 PM

Using infected computers on the Internet is a security risk to everyone as they are prone to attack from hackers, Botnets, and zombie machines. When there are compromised computers connected to the Internet, malware spreads faster and more extensively, distributed denial-of-service attacks are easier to launch, spammers have more platforms from which to send e-mail and more zombies are created to perpetuate the cycle.
Windows Insider MVP 2017-2018
Microsoft MVP Reconnect 2016
Microsoft MVP Consumer Security 2007-2015 kO7xOZh.gif
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

If I have been helpful & you'd like to consider a donation, click 38WxTfO.gif

#4 ShadyD


  • Members
  • 16 posts
  • Gender:Male
  • Location:The US of A
  • Local time:01:17 PM

Posted 11 July 2012 - 06:59 PM

Think about this as well. Depending on the virus, it may give an attacker a back door into your system. They can use this system as a jumping off point for other attacks, or against your other systems. Maybe they set up your computer as a jumping off point for hacks or something like forwarding child porn. That way, anyone tracking or investigating sees your IP rather than his.

If your computer has a virus, it's not your computer anymore.

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users