I opened my mail, and I had 730 new e-mails there! Whaat!
One of my Azure boxes has (for reason unknown to me), following crontab-entry on root's crontab:
* * * * * [ \( ! -f /etc/opt/omi/creds/omi.keytab \) -o
\( /etc/krb5.keytab -nt /etc/opt/omi/creds/omi.keytab \) ] &&
/opt/omi/bin/support/ktstrip /etc/krb5.keytab /etc/opt/omi/creds/omi.keytab
/opt/omi/bin/support/ktstrip keeps failing, because /etc/krb5.keytab is missing. And that command is run every single minute on my machine. So, every single minute I get a new information about the failure. Nice! 
The sequence of events is totally unclear to me. I haven't touched anything, but this morning an influx of e-mails stated pouring in.
OMI, or Open Management Infrastructure is something Linux-images in Azure have, so it shouldn't be anything dangerous.
The obvious fix as to remove that stupid line.
Actually, if you can read this comment on my blog, it means, that the box in Azure hasn't crashed yet.