[Okta Webinar] Learn how to a build a cloud-first strategyRegister Now


Is it safe to connect a PC with unknown history to my router?

Posted on 2006-05-28
Medium Priority
Last Modified: 2013-12-04
I may need to connect a third-party PC to the internet for updates etc.  I have no idea what is on the machine - for all I know it may be (and probably is) riddled with viruses, spyware and other rubbish.
- Is it safe to connect to the internet with this machine to my router whilst other machines are connected?  Or, if not...
- Is there anything I can do to protect the other machines that are also connected to the router?
- Is it possible that the third-party machine could contain something horrible (virus etc) that could potentially upset my router's functionality?

Question by:Sigh_Man
  • 2
LVL 97

Accepted Solution

war1 earned 760 total points
ID: 16781360
Greetings, Sigh_Man !

If the PC virus and spyware status is unknown, do not connect it up to your network. You can unhook the other PC from router and connect this one.  Run your antivirus and antispyware programs to make sure this computer is clean. If you do not know what antivirus program to run, run one of these

Housecall Online Scan
Panda Activescan
Kaspersky Virus Scan

If you do not know which antispyware to run, run both Spy Sweeper and Ewido

Spy Sweeper

Best wishes!
LVL 97

Assisted Solution

by:Lee W, MVP
Lee W, MVP earned 120 total points
ID: 16781379
Anything is possible... but is it LIKELY.

First thing you should do is power it on WITHOUT it connected to the network and get some ideas about how infected in MAY be.  Then run antivirus software, antispyware software and other such programs.

THEN, I'd make sure your clients are all up-to-date on these programs.

Then decide what you'll do next based on what you find.  (And if you need to download programs and such, do it and burn them to CD so they can't transfer infections).
LVL 23

Assisted Solution

phototropic earned 120 total points
ID: 16782817
Is this a permanent connection?
If not, just disconnect other pc's when you connect this one...
If it is a permanent connection:
Delete all temp. files (%temp%)
Delete all temp. int. files
Delete all cookies.
Disable system restore (controlpanel - system - system restore)
Run Ewido (update it first)
Run av software (Bitdefender is the best rated :   http://www.bitdefender.com/PRODUCT-14-en--BitDefender-8-Free-Edition.html )
Run Hijackthis:
Analyse the scan log here:
Once the log is clean you should be okay.

The short answer to the question in your title is:

LVL 23

Expert Comment

ID: 16782829
don't forget to re-enable system restore if you use it.

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In today's information driven age, entrepreneurs have so many great tools and options at their disposal to help turn good ideas into a thriving business. With cloud-based online services, such as Amazon's Web Services (AWS) or Microsoft's Azure, bus…
Recently, I read that Microsoft has analysed statistics for their security intelligence report. It revealed: still, the clear majority of windows users do their daily work as administrator. An administrative account is a burden, security-wise. My ar…
Are you ready to place your question in front of subject-matter experts for more timely responses? With the release of Priority Question, Premium Members, Team Accounts and Qualified Experts can now identify the emergent level of their issue, signal…
When cloud platforms entered the scene, users and companies jumped on board to take advantage of the many benefits, like the ability to work and connect with company information from various locations. What many didn't foresee was the increased risk…
Suggested Courses

872 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question