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FTP brute Force attack
From: "sumitkamboj88 () gmail com" <sumitkamboj88 () gmail com>
Date: Thu, 13 Jun 2013 17:03:31 +0530

Hello everyone
i am using below rule to detect ftp brute force attack.

alert tcp $HOME_NET 21 -> $EXTERNAL_NET any (msg:"ET SCAN Potential
FTP Brute-Force attempt";
flow:from_server,established; content:"530 ";
threshold: type threshold, track by_dst, count 5, seconds
60; sid:2002383; rev:10;)

it is working properly.but when i check generated log file using u2spewfoo
it shows source of attack as destination and destination of
attack as a source(means it shows attacker as a target).i also know why it
is happening because "530 login incorrect" message generated by FTP server.
I just want to know there is any way so that i got a generated log which
shows actual source and destination of attack.

Warm Regards
Sumit Kumar
Guru Nanak Dev University, Amritsar
Mo:- 8968227299
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