Scan UDP port 135

From: Gkruel (gkruel@openlink.com.br)
Date: 01/28/03

  • Next message: Tina Bird: "MSDE contained in..." 
    Date: Tue, 28 Jan 2003 12:28:33 -0300
From: Gkruel <gkruel@openlink.com.br>
To: <incidents@securityfocus.com>

    Iīve noticed that since 01/24 00:14 GMT -0200, til today, different IPīs
    started to scan my whole network for UDP port 135.

    They send one packet each 30 seconds, one for each IP of my whole range.

    The source IPīs are different from any IP sending the slammer worm for me,
    so it doesnīt seem to have any relation.

    Here are some of them:
    - 208.62.233.151
    - 67.34.191.69
    - 65.217.17.36, 44, and 45

    Iīm used to receive tons of UDP 137, on random IPīs, but never to my whole
    IP range.

    Is it some other simple probe directed specifically to me, and iīm
    overreacting, or maybe something else? UDP 135 is used by MS Exchange
    (portmapper)...

    Thanks

    ----------------------------------------------------------------------------
    This list is provided by the SecurityFocus ARIS analyzer service.
    For more information on this free incident handling, management
    and tracking system please see: http://aris.securityfocus.com

    Relevant Pages

    • Re: Multiple closed networks and UDP. Please help me.
      ... Each of the three computers will be in its own closed network. ... I have worked with TCP many times, but never UDP. ... I believe that the TCP connection will be assigned based on the IP address. ... there is a packet to receive. ...
      (microsoft.public.vc.mfc)
    • Re: Multiple closed networks and UDP. Please help me.
      ... Each of the three computers will be in its own closed network. ... I have worked with TCP many times, but never UDP. ... I believe that the TCP connection will be assigned based on the IP ... there is a packet to receive. ...
      (microsoft.public.vc.mfc)
    • Re: Multiple closed networks and UDP. Please help me.
      ... Each of the three computers will be in its own closed network. ... I have worked with TCP many times, but never UDP. ... When I open a socket to receive one UDP socket stream do I ... there is a packet to receive. ...
      (microsoft.public.vc.mfc)
    • Re: Multiple closed networks and UDP. Please help me.
      ... Each of the three computers will be in its own closed network. ... I have worked with TCP many times, but never UDP. ... I believe that the TCP connection will be assigned based on the IP ... there is a packet to receive. ...
      (microsoft.public.vc.mfc)
    • Re: recvfrom() strange operation
      ... no matter what your network looks ... discover packet loss, partially loss and joinde packet and octett ... And the most important sfrtp working fine over TCP or UDP ... "frames" (or whatever you are calling your higher layer protocol ...
      (comp.os.linux.development.system)