Windows Defender definitions update

Windows Defender definitions update

Postby eLPuSHeR » 15.04.2019, 08:55

Hello.

Yesterday while updating an offline w10 x86 v1803 17134.706 I wasn't able to update Windows Defender Definitions. The mpam-fe.exe file size is smaller than the one you get HERE.
eLPuSHeR
 
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Re: Windows Defender definitions update

Postby hbuhrmester » 15.04.2019, 10:57

Update to the new version 11.6.2 and try again.

To update, just run the UpdateGenerator.exe and it will tell you, if a new version is available, as soon as you click on the Start button.
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Re: Windows Defender definitions update

Postby eLPuSHeR » 16.04.2019, 08:13

Good day.

Yes I updated to latest version yesterday and I have recreated whole offline updates from scratch (20GB+). Now everything seems fine. I will test it this afternoon.

Best regards.
eLPuSHeR
 
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Re: Windows Defender definitions update

Postby eLPuSHeR » 17.04.2019, 08:39

It works fine after using latest version.

Thanks.
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Re: Windows Defender definitions update

Postby CaptainN » 17.04.2019, 15:47

Hi All,

I also tried it today but I got ever "the file ..\msse\x64-glb\mpam-fe.exe is missing" or something similar. And if I look in that folder "client\msse\x64-glb\mpam-fe.exe" the file is not there but for the 32bit version "client\msse\x86-glb\mpam-fe.exe" is there. Is there some error inside the new scripts that it only work for x86.
I will download the file manually from: "https://go.microsoft.com/fwlink/?LinkID=121721&arch=x64" and try if the update works if the file would correct downloaded. I will keep you informed.

Best regards.
CaptainN
 
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Joined: 17.04.2019, 15:34

Re: Windows Defender definitions update

Postby CaptainN » 18.04.2019, 06:07

Hi All again,

I retested and have to correct me. The "client\msse\x86-glb\mpam-fe.exe" was old and not updated and I try it today outside from our company network without proxy and the "client\msse\x64-glb\mpam-fe.exe" was updated also Silverlight which before only generate this warning "Warning: Download of https://download.microsoft.com/download ... ht_x64.exe failed". So some one have a hint for me what I can do that is work with again with proxy. Until the location of defender signatures was changed it was working. :?:
Regards
CaptainN
 
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Joined: 17.04.2019, 15:34

Re: Windows Defender definitions update

Postby hbuhrmester » 18.04.2019, 10:52

The environment variable https_proxy is missing, and this affects both Silverlight and the new virus definition links:

https://forums.wsusoffline.net/viewtopic.php?f=5&t=8952

The virus definition links are stored with http URLs, but the server seems to advise wget to use https instead with a HSTS response:

https://en.wikipedia.org/wiki/HSTS

As a result, all connections will be made with https, as the fist line from wget indicates:

Code: Select all
~/Downloads$ wget --trust-server-names "http://go.microsoft.com/fwlink/?LinkID=121721&arch=x86"
URL transformed to HTTPS due to an HSTS policy
--2019-04-18 11:39:52--  https://go.microsoft.com/fwlink/?LinkID=121721&arch=x86
Resolving go.microsoft.com (go.microsoft.com)... 2a02:26f0:d5:4a5::2c1a, 2a02:26f0:d5:481::2c1a, 104.81.43.109
Connecting to go.microsoft.com (go.microsoft.com)|2a02:26f0:d5:4a5::2c1a|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://www.microsoft.com/security/encyclopedia/adlpackages.aspx?arch=x86 [following]
--2019-04-18 11:39:53--  https://www.microsoft.com/security/encyclopedia/adlpackages.aspx?arch=x86
Resolving www.microsoft.com (www.microsoft.com)... 2a02:26f0:d5:28f::356e, 2a02:26f0:d5:282::356e, 23.52.13.90
Connecting to www.microsoft.com (www.microsoft.com)|2a02:26f0:d5:28f::356e|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Cookie coming from www.microsoft.com attempted to set domain to adl.sr.wd.microsoft.com
Location: https://definitionupdates.microsoft.com/download/DefinitionUpdates/VersionedSignatures/AM/1.291.2171.0/x86/mpam-fe.exe [following]
--2019-04-18 11:39:53--  https://definitionupdates.microsoft.com/download/DefinitionUpdates/VersionedSignatures/AM/1.291.2171.0/x86/mpam-fe.exe
Resolving definitionupdates.microsoft.com (definitionupdates.microsoft.com)... 92.123.40.197
Connecting to definitionupdates.microsoft.com (definitionupdates.microsoft.com)|92.123.40.197|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 151133360 (144M) [application/octet-stream]
Saving to: 'mpam-fe.exe'

mpam-fe.exe         100%[===================>] 144.13M  2.74MB/s    in 53s     

2019-04-18 11:40:46 (2.74 MB/s) - 'mpam-fe.exe' saved [151133360/151133360]


As a workaround, you could set the variables http_proxy and https_proxy in a terminal and then call the script DownloadUpdates.cmd manually, for example:

Code: Select all
set http_proxy=http://192.168.2.101:3128
set https_proxy=http://192.168.2.101:3128
DownlodUpdates.cmd ...


Or you could create a settings file .wgetrc in your home directory and enter such settings there. But I don't exactly know the approach for Windows.


Or you could fix the script DownloadUpdates.cmd yourself, by changing lines 180-183 from:

Code: Select all
if /i "%3"=="/proxy" (
  set http_proxy=%4
  shift /3
)


to:

Code: Select all
if /i "%3"=="/proxy" (
  set http_proxy=%4
  set https_proxy=%4
  shift /3
)


Regards,
hbuhrmester
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Re: Windows Defender definitions update

Postby CaptainN » 07.05.2019, 13:40

Hi hbuhrmester,

sorry for my late reply and thanks for your solution. I tested it with your change in the DownloadUpdates.cmd and with proxy inside our company network and it works fine, thank you a lot.

Regards
CaptainN
 
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Joined: 17.04.2019, 15:34

Re: Windows Defender definitions update

Postby WSUSUpdateAdmin » 10.05.2019, 21:15

Hi.

Sorry for delay, it's in http://trac.wsusoffline.net/trac.fcgi/browser/trunk (r1039) and v. 11.7.

Regards,
Torsten
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