McAfee VirusScan Enterprise 8.5i (Important) HotFix HF 472021

HotFix Release Notes

HotFix Version: HF472021

Product: VirusScan Enterprise 8.5i

Files affected:
MFEHIDK.SYS 13.3.0.179
mfetdik.sys 13.3.0.179
SCRIPTCL.DLL 13.3.2.140
SCRIPTSN.DLL 13.3.2.140
SHSTAT.EXE 8.5.0.939
VSTSKMGR.EXE 8.5.0.939

IMPROVEMENTS

1. When a web browser opens a site that is
script-intensive, scanning the scripts adds to
the delay of loading the page. This Patch
contains new functionality for ScriptScan
whitelisting. If the web site is a trusted
Intranet and/or frequently visited, the new
implementation now allows for the exclusion of
that site from script scanning.

NOTE: Refer to McAfee Support KnowledgeBase
article KB65382 for further information.

RESOLVED ISSUES

1. Issue:
On Microsoft Windows Vista SP1 or 2008 server,
sharing violations could occur when working
with remote files while network drive scanning
was enabled. This resulted in being denied
access to files, or being unable to modify or
save a file.

Resolution:
The Anti-Virus Filter driver has been updated
to better handle potential sharing violations
that could occur and avoid conflicts.

2. Issue:
The ability to clean files, detected on network
drives by the on-access scanner, could
encounter sharing violations causing the clean
to fail. When this happens, the scanner would
use the secondary action (delete by default).

Resolution:
The Anti-Virus Filter driver has been updated
to work around some of the inherent limitations
of network scanning that will cause this
issue.

3. Issue:
When a non-administrator account logs into a
system, high CPU utilization could occur with
the ShStat.exe process.

Resolution:
The VirusScan statistics process will better
handle its loading logic to avoid looping
issues that could lead to excess CPU
utilization.

4. Issue:
In some cases, the McTaskManager service was
using excessive amount of CPU time.

Resolution:
The McTaskManager service will now delay for a
short time when retrieving errors and
communicating to Windows System Monitor.

5. Issue:
An unauthenticated remote denial-of-service
attack was discovered.

Resolution:
The product no longer allows the
denial-of-service attack.

6. Issue:
A Bugcheck (blue screen) sometimes occurred
when VirusScan Enterprise 8.5i was installed
along with Quest Downtime server.

Resolution:
The mini-firewall driver will better handle
situations where a process terminates while
data was still being received on the processes
behalf.

7. Issue:
Security Center or Outlook Trust center would
show that Antivirus software was out of date,
even when using current DAT files. For the
latter, a reboot would correct the issue.

Resolution:
The McTaskManager Service has been updated
to keep the Microsoft Security Center informed
of DAT version.

Notes:
1. This HotFix requires VirusScan Enterprise 8.5i
Patch 8, in order to install to the system.
2. This HotFix cannot be installed on Windows NT
4.0 (any edition).
3. A reboot will be needed in order to load the
updated binary into memory. The package
install does not force the reboot.
4. This HotFix cannot be installed using McAfee
Installation Designer package. Patch 8 is
requirement for the HotFix to install, and the
customized installer executes the HotFix before
the Patch.
5. An administrator can install this release by
executing VSE85HF472021.EXE locally on an
individual system, or by adding the package to
the ePolicy Orchestrator or Protection Pilot
repository for deployment via an agent update.

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