Tudo bem, você já configurou seu IDS preferido, mas como saber se ele realmente está funcional? Para isso vamos usar o IDSWAKEUP, um gerador de ataques e falsos positivos.

Por: Mauro Risonho de Paula Assumpção
Analista de Segurança de Redes
Machine IT
BeMoreSecurity
mobile +55-19-91406602

Passo1:

# apt-get install idswakeup

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
-  IDSwakeup : false positive generator               -
-  Stephane Aubert                                    -
-  Hervé Schauer Consultants (c) 2000                 -
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Usage:
/usr/sbin/idswakeup <src addr> <dst addr> [nb] [ttl]

Para usar você deve executar o comando:

Passo2:

# idswakeup <ip_de_origem> <ip_de_destino>

Passo3:

O processo será iniciado quando exibir algumas informações como estas:

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
-  IDSwakeup : false positive generator               -
-  Stephane Aubert                                    -
-  Hervé Schauer Consultants (c) 2000                 -
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

  src_addr:10.68.40.92  dst_addr:10.68.40.77  nb:1   ttl:1

  sending : teardrop ...
  sending : land ...
  sending : get_phf ...
  sending : bind_version ...
  sending : get_phf_syn_ack_get ...
  sending : ping_of_death ...
  sending : syndrop ...
  sending : newtear ...
  sending : X11 ...
  sending : SMBnegprot ...
  sending : smtp_expn_root ...
  sending : finger_redirect ...
  sending : ftp_cwd_root ...
  sending : ftp_port ...
  sending : trin00_pong ...
  sending : back_orifice ...
  sending : msadcs ...
            10.68.40.92 -> 10.68.40.77 80/tcp  GET /msadc/msadcs.dll HTTP/1.0
  sending : www_frag ...
            10.68.40.92 -> 10.68.40.77 80/fragmented-tcp  GET /................. .................. HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/fragmented-tcp  GET /AAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
                  AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAA\
                  AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAA\
                  AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA/../cgi- bin/phf HTTP/1.0
  sending : www_bestof ...
            10.68.40.92 -> 10.68.40.77 80/tcp  GET  /  HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  GET //////// HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  HEAD  /  HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  HEAD/./
            10.68.40.92 -> 10.68.40.77 80/tcp  /cgi-bin\\handler
            10.68.40.92 -> 10.68.40.77 80/tcp  /cgi-bin\\webdist.cgi
            10.68.40.92 -> 10.68.40.77 80/tcp  /mlog.phtml
            10.68.40.92 -> 10.68.40.77 80/tcp  /mylog.phtml
            10.68.40.92 -> 10.68.40.77 80/tcp  /cfide\\administrator\\startstop.html
            10.68.40.92 -> 10.68.40.77 80/tcp  /cfappman\\index.cfm
            10.68.40.92 -> 10.68.40.77 80/tcp  /mall_log_files\\order.log
            10.68.40.92 -> 10.68.40.77 80/tcp  /admin_files\\order.log
            10.68.40.92 -> 10.68.40.77 80/tcp  /cgi-bin\\wrap
            10.68.40.92 -> 10.68.40.77 80/tcp  GET /cgi-bin/ph%66 HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  GET /sahsc.lnk HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  GET /sahsc.bat HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  GET /sahsc.url HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  GET /sahsc.ida HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  GET /default.asp::$DATA HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  GET      /        HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  PUT /scripts/cmd.exe HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  GET /scripts/cmd.exe HTTP/1.0
^A            10.68.40.92 -> 10.68.40.77 80/tcp  BAD /scripts/cmd.exe HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  GET /_vti_pvt/administrators.pwd HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  GET /cgi-bin/handler HTTP/1.0
            10.68.40.92 -> 10.68.40.77 80/tcp  GET /../../../../../../etc/passwd HTTP/1.0

-=- Bye ! - sa/hsc -=-

Verifique o log do seus IDS e veja os ataques.

Até a próxima pessoal!

Mauro Risonho de Paula Assumpção
Analista de Segurança de Redes
Machine IT
BeMoreSecurity
mobile +55-19-91406602