[Intrusions] SSH brute forcers

Scott Mcintyre security at isnnetworks.net
Mon May 30 20:10:47 GMT 2005


How many of the ips do you actualy report to the isps?

BruteForcing in general should not be much of a problem, install brute 
force detectors, theres lots out there.  Even if someone does brute 
force you for a reason, you should not have anything to worry about 
providing you use strong passwords.

> WOOOHOOO.  Its getting to the point that the SSH brute force attmepts
> on the 2 servers I am working on atm are coming at 4 to 8 times a 
day,
> no reasoning behind the number of attempts yet either.
> 
> Jim McCullough
> 
> On 5/28/05, DHoelzer at cyber-defense.org <DHoelzer at cyber-defense.org> 
wrote:
> > I've been automatically shunning SSH brute forcers for several 
months now
> > but I've recently decided to become a bit more aggressive.  I am 
now
> > publishing a blacklist populated by known SSH bruteforcing sources 
on my
> > site that is updated every minute based on my own detects from 
several
> > sites.  If you have any addresses to contribute please send them 
my way.
> > Feel free to grab a copy of the list if you want to populate your 
ACLs
> > which is what I'm doing for my customers.
> > 
> > Best regards
> > -----------------------------------------------------
> > David Hoelzer
> > Cyber-Defense.org
> > http://www.cyber-defense.org/CV.html
> > _______________________________________________
> > Intrusions mailing list
> > Intrusions at lists.sans.org
> > http://www.dshield.org/mailman/listinfo/intrusions
> > 
> 
> 
> -- 
> Jim McCullough
> 
> _______________________________________________
> Intrusions mailing list
> Intrusions at lists.sans.org
> http://www.dshield.org/mailman/listinfo/intrusions
> 
> 





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