[exim] is the log caused by this helo name?

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Συντάκτης: Cyborg
Ημερομηνία:  
Προς: exim-users
Αντικείμενο: [exim] is the log caused by this helo name?
Hi,

this is a logline created by emoted or another malware:

2022-01-11 22:01:45 LOGIN authenticator failed for ([0.0.0.0])
[41.133.x.x]: 535 Incorrect authentication data (set_id=EmotedBot)

It shows the "hostname" used as "[0.0.0.0]" but is this really caused by
i.e. this:

220 x.x.x ESMTP Exim 4.94.2 Fri, 21 Jan 2022 10:27:11 +0100
HELO [0.0.0.0]

or is it (logline) created with another syntax,I don't know yet?

best regards,
Marius