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ShellBot Uses Hex IPs to Evade Detection in Attacks on Linux SSH Servers
(thehackernews.com)
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this post was submitted on 12 Oct 2023
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Surprised this isn't a better known / prevented vector. I remember experimenting with variant IPs like this in IE6 over 20 years ago.
Checking now with Firefox and it auto-translates on the line below as I type one in. (Tried both 0x7f000001 and 2130706433 because they're both variants of 127.0.0.1, and if there's something bad running on that address you have other problems.)
Irrelevant nerd fact: 2130706433 is a prime number.
So is 127
It's not
I just plugged
factor(2130706433);into Maxima and it says that it has no factors. Pretty sure that it's prime.Sorry, i said it was a mersenne prime, then realized it wasnt, so edited it and deleted it. It was a mess