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SEP SMB 12.0 clients unable to reslove local DNS

Created: 06 Jun 2011 | 1 comment

we are using SEP SMB 12   current version 12.0.1001.95. from last few days we have a problem

some client pc are stop resolving DNS or DNS Client service stop due to unknown issue. i think this is heppend due to to some kind to virus but symantec shows me client is protected. is there any update are hotfix for this issue. my SEPSMB product is up to date .

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Thomas K's picture

First, check your hosts file.

Make sure your system OS is patched and your applications have the latest updates, Browsers, Adobe, etc

If you are using SEP or SAV, I would start with downloading the latest Rapid Release definitions.

If using any other AV, make sure you have the latest definitions as well.

Once you have the new definitions, boot into safe mode and run a Disk Cleanup (right-click the C drive, Properties, Disk Cleanup) - that will delete all the files that are in these temporary locations, as well as IE's temporary files, etc. Perform a full system scan in safe mode.

If the above steps fail to detect and remove the threats, here are useful tools that Symantec provides to help with finding those hard to detect threats.

1. The Power Eraser Tool eliminates deeply embedded and difficult to remove threats that traditional virus scanning doesn't always detect.

2. The SERT (Symantec Endpoint Recovery Tool)is useful in situations where computers are too heavily infected for the Symantec Endpoint Protection client installed upon them to clean effectively.

3. TheLoad point Analysis Tool generates a detailed report of the programs loaded on your system. It is helpful in listing common loadpoints where threats can live.

Rapid Release Virus Definitions –

Support Tool with Power Eraser Tool included –

Power Eraser tool –

How To Use the Symantec Endpoint Recovery Tool with the Latest Virus Definitions –

How to use the Load Point Analysis within the Symantec Support Tool to help locate suspicious files