FTP Evasion Detection (id:30401)

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FTP Evasion Detection (id:30401)

L1 Bithead

Could anyone help to explain what this threat is?

FTP evasion detection (id:30401)

I found this threat in the log, also checked the logs in FTP server, but don't get it.

here is the log from the source IP of this threat in FTP server (Microsoft IIS FTP).

2025-09-16 04:43:54 8.34.210.54 - 10.10.10.31 21 ControlChannelOpened - - 0 0 8bb7b510-d8db-4808-94f0-4177688239fa -
2025-09-16 04:43:54 8.34.210.54 - 10.10.10.31 21 ControlChannelClosed - - 0 0 8bb7b510-d8db-4808-94f0-4177688239fa -
2025-09-16 04:43:55 8.34.210.54 - 10.10.10.31 21 ControlChannelOpened - - 0 0 959e077c-bc84-48c0-bbc1-4ad7af838dc4 -
2025-09-16 04:43:55 8.34.210.54 - 10.10.10.31 21 - - 451 87 0 959e077c-bc84-48c0-bbc1-4ad7af838dc4 -
2025-09-16 04:43:55 8.34.210.54 - 10.10.10.31 21 - - 451 87 0 959e077c-bc84-48c0-bbc1-4ad7af838dc4 -
2025-09-16 04:43:55 8.34.210.54 - 10.10.10.31 21 - - 451 87 0 959e077c-bc84-48c0-bbc1-4ad7af838dc4 -
2025-09-16 04:43:55 8.34.210.54 - 10.10.10.31 21 + - 500 87 0 959e077c-bc84-48c0-bbc1-4ad7af838dc4 -
2025-09-16 04:43:55 8.34.210.54 - 10.10.10.31 21 ControlChannelClosed - - 1292 0 959e077c-bc84-48c0-bbc1-4ad7af838dc4 -

I can not find any info about this threat when I dig the internet.
Thank you! 

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