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Failure in pattern update through web proxy in ScanMail for Exchange (SMEX) 12.5

    • Updated:
    • 29 May 2019
    • Product/Version:
    • ScanMail for Exchange 12.5
    • ScanMail for Exchange 12.5
    • Platform:
    • N/A N/A
Summary

During a pattern update, the following error is encountered:

“Error: ActiveUpdate was unable to connect to the Network.”

Furthermore, from collected logs, TmuDump.txt shows errors on certificate verification:

"Inf 20180211 13:55:05 33260 39764 Certificate Number:1
Err 20180211 13:55:05 33260 39764 Verify certificate failure, error code=20
Err 20180211 13:55:05 33260 39764 unable to get local issuer certificate
Err 20180211 13:55:05 33260 39764 X509 certificate verification failed
Err 20180211 13:55:05 33260 39764 certificate verify not ok
Err 20180211 13:55:05 33260 39764 HttpsConnection: SSL verify peer failed
Err 20180211 13:55:05 33260 39764 TmDownloader: HTTPS connection or server authentication failed "

Details
Public

By default, SMEX 12.5 uses HTTPS to connect to ActiveUpdate (AU). For instances that a proxy may not be configured properly causing a pattern update failure, an alternative would be to use HTTP instead.

Follow these steps:

Always back up the whole registry before making any modifications. Incorrect changes to the registry can cause serious system problems.
  1. Connect to the AU HTTP server, and modify the following registry key value:

    Path:HKEY_LOCAL_MACHINE\SOFTWARE\TrendMicro\ScanMail for Exchange\CurrentVersion
    Key: AUFromHTTPSServer
    Type: DWORD
    Value: Set to O (default is 1.)

  2. Enable custom update source option in the SMEX 12.5 UI by adding the following registry key:

    Path:HKEY_LOCAL_MACHINE\SOFTWARE\TrendMicro\ScanMail for Exchange\CurrentVersion
    Key: AUFromOtherSource
    Type: DWORD
    Value: 1

  3. Verify AU manual update if it goes through.
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Rating:
Category:
Troubleshoot; Update
Solution Id:
1122280
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