Subject: Symantec W32.Sircam.Worm@mm Security Updates
(Contributed by A Friend)
W32.Sircam.Worm@mm Security Updates
Last Updated on: July 26, 2001 at 06:09:58 PM PDT
Because this worm spreads by using shared folders on networked computers, to ensure that
the worm does not reinfect the computer after it has been removed, Symantec suggests sharing with read-only
access or using password protection.
How to configure shared Windows folders for maximum network protection
Situation:
New viruses such as W32.HLLW.QAZ.A and VBS.Network can spread through shared network
volumes. To prevent the spread of these types of viruses, Symantec suggests sharing with read-only
access or using password protection.
Solution:
NOTE: Symantec suggests that you do not share the root of drive C. Share specific folders instead.
The following steps assume that Windows is installed on drive C. If you installed Windows to a
different location, substitute the new drive location in the following steps.
Windows NT/2000 users
1. Double-click My Computer on the Windows desktop.
2. Right-click drive C, and click Sharing.
3. Check Share name. The drive will likely be shared as C$. This is a default hidden share
required for administration. If you click the Permissions button, you should see the message
"This has been shared for Administrative purposes. The permissions cannot be shared."
4. Click the drop-down for Share name. If the drive is not shared with any other names, stop
here.
5. If the drive is shared with a name other than C$:
Check "Do not share this folder."
If you do not want to remove this shared resource, click Permissions and make sure
that only the required users and groups may write to it.
For all other shared files or folders, check permissions to verify that only required users
have write access.
Windows 95/98 users
Disable file and print sharing, if possible
1. Right-click the Network Neighborhood icon on the Windows desktop.
2. Click Properties.
3. Click the Configuration tab.
4. Click Client for Microsoft Networks.
5. Click File and Print Sharing.
6. Uncheck both boxes and then click OK.
If you do not want to disable file and print sharing
1. Double-click My Computer on the Windows desktop.
2. Right-click drive C, and click Sharing. If you do not see Sharing, stop here.
3. Look at Sharing status:
If Not Shared is checked, stop here.
If Shared As is checked, we recommend that you disable this option by checking Not
Shared.
If you must share this volume, then under Access Type check either Read-Only or
Depends on Password.
You can create separate passwords for read-only and full access. Give the Full Access
Password only to those who need it.
For all other shared files and folders, make sure Access Type is set appropriately.
NOTE: These instructions are provided for your convenience. Symantec does not provide warranty
support or assistance for Microsoft products. For your convenience, Symantec provides fee-based
technical support and assistance for a number of non-Symantec products, including products from
Microsoft. Symantec Multivendor Support is available by calling (800) 745-6032.
Product(s): Windows 2000, Windows 9x, Windows NT
Operating System(s):
Document ID: 2000091415173339
Date Created: 09/14/2000
Last Modified: 11/28/2000
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