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[SFOS 18.5MR3] Poor spam detection after update to Sophos Anti-Spam Interface

Hi everyone,
I am setting up a separate thread as I did not receive any specific reply in other threads.

The case concerns Sophos Anti-Spam Interface after upgrading from v18.5MR2 to v18.5MR3 and from v19EAP1 to v19EAP2.

Before updating, antispam works great in legacy mode, detects a lot of intrusive messages and tags with a prefix (near 99%). After updating, only some messages are detected as spam and tagged (I did not do any changes in configuration).

What it comes from? How can I edit my lists to achieve pre-update spam detection?

Greetings

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Top Replies

Karlos over 2 years ago in reply to Bart van der Horst +3 suggested

Just to update this thread, RE: NC-90702, development will include a fix in SFOS 18.5 MR4 and 19.0 MR1.

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0 emmosophos over 2 years ago

Hello,

Would it be possible to get the output of the /log/u2d.log and /log/sasi.log as well as a few samples .eml files via DM (especially interested in the X-SASI-* headers) so I can provide this info to the pertinent team to investigate.

Regards,

Emmanuel (EmmoSophos)

Technical Team Lead, Global Community Support
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0 somename over 2 years ago in reply to emmosophos

Since the update on March 31, 2022, the following error messages have appeared in the log.

SFV2C4MSP_VM01_SFOS 18.5.3 MR-3-Build408# cat /log/sasi.log | grep ERROR [   2] [         DNS/Request.cpp:246] vector::_M_range_check [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [   2] [         DNS/Request.cpp:246] vector::_M_range_check [   2] [         DNS/Request.cpp:246] vector::_M_range_check [   2] [         DNS/Request.cpp:246] vector::_M_range_check [   2] [         DNS/Request.cpp:246] vector::_M_range_check [   2] [         DNS/Request.cpp:246] vector::_M_range_check [   0] [         DNS/Request.cpp:246] vector::_M_range_check [   3] [         DNS/Request.cpp:246] vector::_M_range_check [   3] [         DNS/Request.cpp:246] vector::_M_range_check [   3] [         DNS/Request.cpp:246] vector::_M_range_check [   0] [         DNS/Request.cpp:246] vector::_M_range_check [   1] [         DNS/Request.cpp:246] vector::_M_range_check [   2] [         DNS/Request.cpp:246] vector::_M_range_check [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [   3] [         DNS/Request.cpp:246] vector::_M_range_check [   1] [         DNS/Request.cpp:246] vector::_M_range_check [   2] [         DNS/Request.cpp:246] vector::_M_range_check [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [   0] [         DNS/Request.cpp:246] vector::_M_range_check [   1] [         DNS/Request.cpp:246] vector::_M_range_check [   0] [         DNS/Request.cpp:246] vector::_M_range_check [   2] [         DNS/Request.cpp:246] vector::_M_range_check [   2] [         DNS/Request.cpp:246] vector::_M_range_check [   2] [         DNS/Request.cpp:246] vector::_M_range_check [   2] [         DNS/Request.cpp:246] vector::_M_range_check [   1] [         DNS/Request.cpp:246] vector::_M_range_check [   2] [         DNS/Request.cpp:246] vector::_M_range_check [   2] [         DNS/Request.cpp:246] vector::_M_range_check [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [Main] [          precompile.cpp:724] Precompile exception: Failed to apply delta to signatures. [   1] [         DNS/Request.cpp:246] vector::_M_range_check [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [Main] [          precompile.cpp:724] Precompile exception: Failed to apply delta to signatures. [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [   3] [         DNS/Request.cpp:246] vector::_M_range_check [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [   0] [         DNS/Request.cpp:246] vector::_M_range_check [   0] [         DNS/Request.cpp:246] vector::_M_range_check [   1] [         DNS/Request.cpp:246] vector::_M_range_check [   0] [         DNS/Request.cpp:246] vector::_M_range_check [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [   2] [         DNS/Request.cpp:246] vector::_M_range_check [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [   1] [         DNS/Request.cpp:246] vector::_M_range_check [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [Main] [          precompile.cpp:724] Precompile exception: Failed to apply delta to signatures. [Main] [          precompile.cpp:724] Precompile exception: Failed to apply delta to signatures. [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [Main] [          precompile.cpp:724] Precompile exception: Failed to apply delta to signatures. [   2] [         DNS/Request.cpp:246] vector::_M_range_check [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp [   0] [         DNS/Request.cpp:246] vector::_M_range_check [   3] [         DNS/Request.cpp:246] vector::_M_range_check [   1] [         DNS/Request.cpp:246] vector::_M_range_check [   2] [         DNS/Request.cpp:246] vector::_M_range_check [   3] [         DNS/Request.cpp:246] vector::_M_range_check [   1] [         DNS/Request.cpp:246] vector::_M_range_check [   1] [         DNS/Request.cpp:246] vector::_M_range_check [   0] [         DNS/Request.cpp:246] vector::_M_range_check 18.5.3 MR-3-Build408#

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0 somename over 2 years ago in reply to emmosophos

Since the update on March 31, 2022, the following error messages have appeared in the log.

SFV2C4MSP_VM01_SFOS 18.5.3 MR-3-Build408# cat /log/sasi.log | grep ERROR
2022-03-31.22:33:57 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.02:18:08 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-01.05:22:14 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-01.06:40:46 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.07:16:21 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.07:18:28 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.08:44:49 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.09:08:14 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.09:11:09 ERROR    [   0] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.09:16:40 ERROR    [   3] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.09:54:54 ERROR    [   3] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.10:40:28 ERROR    [   3] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.11:49:19 ERROR    [   0] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.11:56:02 ERROR    [   1] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.11:57:42 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.13:06:41 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-01.13:42:38 ERROR    [   3] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.13:59:26 ERROR    [   1] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.14:55:23 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.15:30:50 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-01.16:45:15 ERROR    [   0] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.16:57:17 ERROR    [   1] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.16:58:40 ERROR    [   0] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.18:42:26 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.18:43:47 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.18:45:42 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.22:11:54 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-01.22:13:13 ERROR    [   1] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-02.04:54:28 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-02.07:38:46 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-02.08:51:51 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-02.09:31:53 ERROR    [Main] [          precompile.cpp:724] Precompile exception: Failed to apply delta to signatures.
2022-04-02.12:02:01 ERROR    [   1] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-02.13:56:08 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-02.19:00:20 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-02.19:40:21 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-02.23:24:32 ERROR    [Main] [          precompile.cpp:724] Precompile exception: Failed to apply delta to signatures.
2022-04-03.08:13:06 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-03.12:08:41 ERROR    [   3] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-03.12:13:15 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-03.12:25:25 ERROR    [   0] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-03.12:26:40 ERROR    [   0] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-03.13:28:23 ERROR    [   1] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-03.14:07:27 ERROR    [   0] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-03.14:37:20 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-03.14:45:42 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-03.15:17:22 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-03.20:20:58 ERROR    [   1] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-03.21:01:37 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-03.21:41:38 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-03.22:21:39 ERROR    [Main] [          precompile.cpp:724] Precompile exception: Failed to apply delta to signatures.
2022-04-03.23:01:40 ERROR    [Main] [          precompile.cpp:724] Precompile exception: Failed to apply delta to signatures.
2022-04-04.00:45:45 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-04.06:29:55 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-04.07:09:56 ERROR    [Main] [          precompile.cpp:724] Precompile exception: Failed to apply delta to signatures.
2022-04-04.08:19:45 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-04.08:30:05 ERROR    [Main] [          precompile.cpp:697] Downloaded file could not be verified with checksum. Discarding /sdisk/sasi/asdb.tmp
2022-04-04.09:39:37 ERROR    [   0] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-04.10:09:08 ERROR    [   3] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-04.10:13:38 ERROR    [   1] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-04.10:42:33 ERROR    [   2] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-04.11:04:32 ERROR    [   3] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-04.11:18:15 ERROR    [   1] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-04.14:07:38 ERROR    [   1] [         DNS/Request.cpp:246] vector::_M_range_check
2022-04-04.15:13:15 ERROR    [   0] [         DNS/Request.cpp:246] vector::_M_range_check
SFV2C4MSP_VM01_SFOS 18.5.3 MR-3-Build408#

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