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Bad Bot hack attempts 23.83.128.0/21

     
5:15 pm on Aug 12, 2019 (gmt 0)

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Had a really nasty bot that appears to have been attempting to hack our ordering system on our ecommerce site.
23.83.128.0/21
5:45 pm on Aug 12, 2019 (gmt 0)

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Do you have a UA name? Any info from the header info? I usually like to try to ID the bot, or have as many clues or identifiers as possible, because they can easily move host providers.
6:15 pm on Aug 12, 2019 (gmt 0)

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Nobis/Leaseweb servers, I think. Not sure if there are any human users.

Regards...jmcc
6:30 am on Aug 13, 2019 (gmt 0)

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I've blocked Ubiquity / Nobis / Leaseweb server farms since at least 2010. If you don't need them, lose them.

23.83.128.0 - 23.83.207.255

deny from 23.83.128.0/18
deny from 23.83.192.0/20

Or you can go really big:

23.80.0.0 - 23.83.63.255

deny from 23.80.0.0/15
deny from 23.82.0.0/16
deny from 23.83.0.0/18
5:45 pm on Aug 13, 2019 (gmt 0)

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I did a casual search for this IP and found a scattering of robotic requests ... every last one of them blocked. That means they're all the generic inept robots that can't be bothered to send humanoid headers. (Before posting, I also checked my htaccess to ensure that I hadn't also denied the IP and then forgot about it. I do have a handful of IP-based lockouts, but this isn't currently one of them.)
 

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