Anti-malware platform update for Windows Defender is available in Windows 8 and in Windows RT

Summary

This article describes an anti-malware platform update for Windows Defender that is available in Windows 8 and in Windows RT. This anti-malware platform update for Windows Defender updates Windows Defender services, drivers, and UIs.

Microsoft regularly releases anti-malware platform updates to guarantee consistency in protection, performance, robustness, and usability in a malware landscape that is constantly changing.

More Information

This anti-malware platform update contains the following improvements:

  • Adds anti-tampering improvements to the anti-malware platform

  • Improves overall performance of the anti-malware platform

  • Adds language support to the anti-malware platform

Update information

How to obtain this update

Windows Update

This update is available from Windows Update.

Microsoft Download Center

The following files are available for download from the Microsoft Download Center:

Operating system

Update

All supported x86-based versions of Windows 8

Download Download the package now.

All supported x64-based versions of Windows 8

Download Download the package now.

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Prerequisites

To apply this update, you must be running Windows RT or Windows 8.

Registry information

To apply this update, you do not have to make any changes to the registry.

Restart requirement

You do not have to restart the computer after you apply this update.

Update replacement information

This update does not replace a previously released update.


The global version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows RT and Windows 8 file information notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version

    Product

    Milestone

    Service branch

    6.2.920 0.16 xxx

    Windows RT and Windows 8

    RTM

    GDR

    6.2.920 0.20 xxx

    Windows RT and Windows 8

    RTM

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows RT and Windows 8" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For Windows RT

File name

File version

File size

Date

Time

Platform

Dbgeng.dll

6.2.9200.16654

2,676,736

01-Jul-2013

22:22

Not applicable

Dbghelp.dll

6.2.9200.16654

1,001,472

01-Jul-2013

22:22

Not applicable

Wdboot.sys

4.3.215.0

30,144

02-Jul-2013

00:32

Not applicable

Wdfilter.sys

4.3.215.0

195,048

01-Jul-2013

22:08

Not applicable

Mpevmsg.dll

4.3.215.0

111,512

01-Jul-2013

22:08

Not applicable

Mpuxhostproxy.dll

4.3.215.0

28,912

01-Jul-2013

22:08

Not applicable

Mpuxsrv.exe

4.3.215.0

52,824

01-Jul-2013

22:08

Not applicable

Windows.defender.lnk

Not applicable

1,139

25-Jul-2012

20:18

Not applicable

Mpasdesc.dll

4.3.215.0

152,472

01-Jul-2013

22:08

Not applicable

Mpclient.dll

4.3.215.0

657,624

01-Jul-2013

22:08

Not applicable

Mpcmdrun.exe

4.3.215.0

268,032

02-Jul-2013

00:47

Not applicable

Mpcommu.dll

4.3.215.0

260,128

01-Jul-2013

22:08

Not applicable

Mpoav.dll

4.3.215.0

91,800

01-Jul-2013

22:08

Not applicable

Mprtp.dll

4.3.215.0

373,688

01-Jul-2013

22:08

Not applicable

Mpsvc.dll

4.3.215.0

1,208,896

01-Jul-2013

22:08

Not applicable

Mptpmatt.dll

4.3.215.0

49,680

01-Jul-2013

22:08

Not applicable

Msmpcom.dll

4.3.215.0

56,320

01-Jul-2013

22:22

Not applicable

Msmpeng.exe

4.3.215.0

15,536

02-Jul-2013

00:47

Not applicable

Msmplics.dll

4.3.215.0

22,304

01-Jul-2013

22:08

Not applicable

Eppmanifest.dll

4.3.215.0

155,032

01-Jul-2013

22:08

Not applicable

Msascui.exe

4.3.215.0

1,054,680

01-Jul-2013

22:08

Not applicable

Msmpres.dll

4.3.215.0

440,728

01-Jul-2013

22:08

Not applicable

For all supported x86-based versions of Windows 8

File name

File version

File size

Date

Time

Platform

Wdboot.sys

4.3.215.0

30,144

01-Jul-2013

22:53

x86

Wdfilter.sys

4.3.215.0

211,288

01-Jul-2013

22:08

x86

Wdboot.sys

4.3.215.0

30,144

02-Jul-2013

04:33

x86

Wdfilter.sys

4.3.215.0

211,288

01-Jul-2013

21:56

x86

Mpevmsg.dll

4.3.215.0

109,728

01-Jul-2013

22:08

x86

Mpevmsg.dll

4.3.215.0

109,728

01-Jul-2013

21:56

x86

Mpuxhostproxy.dll

4.3.215.0

30,016

01-Jul-2013

22:08

x86

Mpuxsrv.exe

4.3.215.0

54,840

01-Jul-2013

22:08

x86

Windows.defender.lnk

Not applicable

1,139

25-Jul-2012

20:24

Not applicable

Mpuxhostproxy.dll

4.3.215.0

30,016

01-Jul-2013

21:56

x86

Mpuxsrv.exe

4.3.215.0

54,840

01-Jul-2013

21:56

x86

Windows.defender.lnk

Not applicable

1,139

25-Jul-2012

20:24

Not applicable

Dbghelp.dll

6.12.2.633

1,213,200

07-Nov-2012

18:36

x86

Mpasdesc.dll

4.3.215.0

150,688

01-Jul-2013

22:08

x86

Mpclient.dll

4.3.215.0

705,224

01-Jul-2013

22:08

x86

Mpcmdrun.exe

4.3.215.0

303,136

01-Jul-2013

22:53

x86

Mpcommu.dll

4.3.215.0

285,016

01-Jul-2013

22:08

x86

Mpoav.dll

4.3.215.0

109,888

01-Jul-2013

22:08

x86

Mprtp.dll

4.3.215.0

394,608

01-Jul-2013

22:08

x86

Mpsvc.dll

4.3.215.0

1,260,136

01-Jul-2013

22:08

x86

Mptpmatt.dll

4.3.215.0

50,232

01-Jul-2013

22:08

x86

Msmpcom.dll

4.3.215.0

63,488

01-Jul-2013

22:32

x86

Msmpeng.exe

4.3.215.0

14,480

01-Jul-2013

22:53

x86

Msmplics.dll

4.3.215.0

20,408

01-Jul-2013

22:08

x86

Symsrv.dll

6.12.2.633

131,856

07-Nov-2012

18:36

x86

Symsrv.yes

Not applicable

1

07-Nov-2012

18:36

Not applicable

Dbghelp.dll

6.12.2.633

1,213,200

06-Nov-2012

23:04

x86

Mpasdesc.dll

4.3.215.0

150,688

01-Jul-2013

21:56

x86

Mpclient.dll

4.3.215.0

705,224

01-Jul-2013

21:56

x86

Mpcmdrun.exe

4.3.215.0

303,136

02-Jul-2013

04:33

x86

Mpcommu.dll

4.3.215.0

285,016

01-Jul-2013

21:56

x86

Mpoav.dll

4.3.215.0

109,888

01-Jul-2013

21:56

x86

Mprtp.dll

4.3.215.0

394,608

01-Jul-2013

21:56

x86

Mpsvc.dll

4.3.215.0

1,260,136

01-Jul-2013

21:56

x86

Mptpmatt.dll

4.3.215.0

50,232

01-Jul-2013

21:56

x86

Msmpcom.dll

4.3.215.0

63,488

02-Jul-2013

03:49

x86

Msmpeng.exe

4.3.215.0

14,480

02-Jul-2013

04:33

x86

Msmplics.dll

4.3.215.0

20,408

01-Jul-2013

21:56

x86

Symsrv.dll

6.12.2.633

131,856

06-Nov-2012

23:04

x86

Symsrv.yes

Not applicable

1

06-Nov-2012

23:04

Not applicable

Eppmanifest.dll

4.3.215.0

153,248

01-Jul-2013

22:08

x86

Msascui.exe

4.3.215.0

1,059,056

01-Jul-2013

22:08

x86

Msmpres.dll

4.3.215.0

438,944

01-Jul-2013

22:08

x86

Eppmanifest.dll

4.3.215.0

153,248

01-Jul-2013

21:56

x86

Msascui.exe

4.3.215.0

1,059,056

01-Jul-2013

21:56

x86

Msmpres.dll

4.3.215.0

438,944

01-Jul-2013

21:56

x86

For all supported x64-based versions of Windows 8

File name

File version

File size

Date

Time

Platform

Wdboot.sys

4.3.215.0

36,288

02-Jul-2013

00:44

x64

Wdfilter.sys

4.3.215.0

247,216

01-Jul-2013

22:08

x64

Wdboot.sys

4.3.215.0

36,288

02-Jul-2013

11:27

x64

Wdfilter.sys

4.3.215.0

247,216

02-Jul-2013

01:21

x64

Mpevmsg.dll

4.3.215.0

109,728

01-Jul-2013

22:08

x64

Mpevmsg.dll

4.3.215.0

109,728

02-Jul-2013

01:21

x64

Mpuxhostproxy.dll

4.3.215.0

30,080

01-Jul-2013

22:08

x64

Mpuxsrv.exe

4.3.215.0

60,648

01-Jul-2013

22:08

x64

Windows.defender.lnk

Not applicable

1,139

25-Jul-2012

20:21

Not applicable

Mpuxhostproxy.dll

4.3.215.0

30,080

02-Jul-2013

01:21

x64

Mpuxsrv.exe

4.3.215.0

60,648

02-Jul-2013

01:21

x64

Windows.defender.lnk

Not applicable

1,139

25-Jul-2012

20:21

Not applicable

Dbghelp.dll

6.12.2.633

1,558,912

07-Nov-2012

23:04

x64

Mpasdesc.dll

4.3.215.0

150,688

01-Jul-2013

22:08

x64

Mpclient.dll

4.3.215.0

911,032

01-Jul-2013

22:08

x64

Mpcmdrun.exe

4.3.215.0

352,208

02-Jul-2013

00:44

x64

Mpcommu.dll

4.3.215.0

363,976

01-Jul-2013

22:08

x64

Mpoav.dll

4.3.215.0

113,024

01-Jul-2013

22:08

x64

Mprtp.dll

4.3.215.0

516,216

01-Jul-2013

22:08

x64

Mpsvc.dll

4.3.215.0

1,606,112

01-Jul-2013

22:08

x64

Mptpmatt.dll

4.3.215.0

52,848

01-Jul-2013

22:08

x64

Msmpcom.dll

4.3.215.0

74,240

01-Jul-2013

22:29

x64

Msmpeng.exe

4.3.215.0

16,048

02-Jul-2013

00:44

x64

Msmplics.dll

4.3.215.0

20,408

01-Jul-2013

22:08

x64

Symsrv.dll

6.12.2.633

149,264

07-Nov-2012

23:04

x64

Symsrv.yes

Not applicable

1

07-Nov-2012

23:04

Not applicable

Dbghelp.dll

6.12.2.633

1,558,912

06-Nov-2012

23:04

x64

Mpasdesc.dll

4.3.215.0

150,688

02-Jul-2013

01:21

x64

Mpclient.dll

4.3.215.0

911,032

02-Jul-2013

01:21

x64

Mpcmdrun.exe

4.3.215.0

352,208

02-Jul-2013

11:27

x64

Mpcommu.dll

4.3.215.0

363,976

02-Jul-2013

01:21

x64

Mpoav.dll

4.3.215.0

113,024

02-Jul-2013

01:21

x64

Mprtp.dll

4.3.215.0

516,216

02-Jul-2013

01:21

x64

Mpsvc.dll

4.3.215.0

1,606,112

02-Jul-2013

01:21

x64

Mptpmatt.dll

4.3.215.0

52,848

02-Jul-2013

01:21

x64

Msmpcom.dll

4.3.215.0

74,240

02-Jul-2013

10:58

x64

Msmpeng.exe

4.3.215.0

16,048

02-Jul-2013

11:27

x64

Msmplics.dll

4.3.215.0

20,408

02-Jul-2013

01:21

x64

Symsrv.dll

6.12.2.633

149,264

06-Nov-2012

23:04

x64

Symsrv.yes

Not applicable

1

06-Nov-2012

23:04

Not applicable

Eppmanifest.dll

4.3.215.0

153,248

01-Jul-2013

22:08

x64

Msascui.exe

4.3.215.0

1,420,112

01-Jul-2013

22:08

x64

Msmpres.dll

4.3.215.0

438,944

01-Jul-2013

22:08

x64

Eppmanifest.dll

4.3.215.0

153,248

02-Jul-2013

01:21

x64

Msascui.exe

4.3.215.0

1,420,112

02-Jul-2013

01:21

x64

Msmpres.dll

4.3.215.0

438,944

02-Jul-2013

01:21

x64

Mpasdesc.dll

4.3.215.0

150,688

01-Jul-2013

22:08

x86

Mpclient.dll

4.3.215.0

705,224

01-Jul-2013

22:08

x86

Mpoav.dll

4.3.215.0

109,888

01-Jul-2013

22:08

x86

Msmplics.dll

4.3.215.0

20,408

01-Jul-2013

22:08

x86

Mpasdesc.dll

4.3.215.0

150,688

01-Jul-2013

21:56

x86

Mpclient.dll

4.3.215.0

705,224

01-Jul-2013

21:56

x86

Mpoav.dll

4.3.215.0

109,888

01-Jul-2013

21:56

x86

Msmplics.dll

4.3.215.0

20,408

01-Jul-2013

21:56

x86


For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

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