Windows Legacy OS forum

General discussion

network sweeps...

by hsfan407 / June 5, 2008 6:13 AM PDT

I'm boggled... Every so often a computer on a network I manage will do a network scan on ports 139, 445 and 2048. It is not consistent in regards to time of day, etc. What, on a normal Windows XP OS SP2 with MS Office, could cause this to occur? I can't seem to link the network scans to a particular event or application. Please help!

Thanks in advance.

Discussion is locked
You are posting a reply to: network sweeps...
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: network sweeps...
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
Maybe An Antivirus...?
by Grif Thomas Forum moderator / June 5, 2008 6:44 AM PDT
In reply to: network sweeps...

For example, McAfee will do it IF the settings on a particular machine are set to scan "network drives" and that specific machine has mapped network drives, it may be doing a scheduled full system scan which includes a check all network connections..

Or if the scan is completely random, then maybe an antivirus/antispyware scanner has similar settings and someone is running it manually with the "network scanning" option enabled.. Obviously, that's an incorrect setting for most computers but it is possible.

One other possibility comes to mind as we've had something similar here in the past.. Quite a few virus/worms are network aware and have the ability to scan the network checking for shared drives (NETBIOS) in the network machines.. We had one years ago (W32/QAZ.worm)which had the ability to breach routers in our WAN.. It doesn't happen any more, but it did.

Hope this helps.

Grif

Collapse -
Thanks!
by hsfan407 / June 10, 2008 6:33 AM PDT
In reply to: Maybe An Antivirus...?

Thanks Grif! Sure enough, the setting on the clients, "Enable Network Scanning" is checked. So, I'll have the AV admins disable that and see what happens.

Popular Forums
icon
Computer Newbies 10,686 discussions
icon
Computer Help 54,365 discussions
icon
Laptops 21,181 discussions
icon
Networking & Wireless 16,313 discussions
icon
Phones 17,137 discussions
icon
Security 31,287 discussions
icon
TVs & Home Theaters 22,101 discussions
icon
Windows 7 8,164 discussions
icon
Windows 10 2,657 discussions

CNET FORUMS TOP DISCUSSION

Help, my PC with Windows 10 won't shut down properly

Since upgrading to Windows 10 my computer won't shut down properly. I use the menu button shutdown and the screen goes blank, but the system does not fully shut down. The only way to get it to shut down is to hold the physical power button down till it shuts down. Any suggestions?