Friday, June 18, 2010

Distributed SSH Brute Force Attempts on the rise again -- SANS ISC

Reported by SANS ISC:

Distributed SSH Brute Force Attempts on the rise again

SSH brute force attempts seem to be on the rise again, at the SANS Internet Storm Center we have received a number of reports that a number of networks are seeing them. The source IP addresses vary with each new attempted username in the wordlist, which would indicate that the attempts are distributed through botnet(s). It only takes a single user with a weak password for a breach to occur, then with that foothold escalation and further attacks are likely next. This is certainly not a new phenomenon, however I think it is a good time to raise awareness about it once again.
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