RE: Recent Increase in Port 139 Activity

From: Frank Knobbe (FKnobbeat_private)
Date: Fri Sep 07 2001 - 15:22:42 PDT

  • Next message: John Campbell: "RE: Recent Increase in Port 139 Activity"

    -----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA1
    
    > -----Original Message-----
    > From: John Campbell [mailto:jcampbellat_private]
    > Sent: Friday, September 07, 2001 2:53 PM
    > 
    > In the last week, I've started seeing one to several port 
    > sweeps per day on
    > port 139, of a particular nature.  Typically the sweep will 
    > hit .1 to .255
    > of a 24 bit net mask sized address block (generally called, "Class
    > C" although this can be erroneous) four times.  
    
    I have seen an increase since last week as well. However, the scans
    against my machines start at the top of the range and work their way
    down.
    
    > Have found 
    > nothing written on
    > any new worms targetting this port.  Source machines are largely
    > North American.
    
    In my case the source was always within close second octet proximity.
    MY site is at 65.106, and I have received scans from
    65.103-65.108.... maybe a new worm of sorts? (Resurging Hybris or
    Explorer variant?)
    
    Regards,
    Frank
    
    -----BEGIN PGP SIGNATURE-----
    Version: PGP Personal Privacy 6.5.8
    Comment: Free Dmitry Sklyarov !
    
    iQA/AwUBO5lIsZytSsEygtEFEQIIDQCg2+3I7T4NPmLGzTlIpi9XvskOtscAnjVc
    QzT8oa6IRkxLRTMaxk8hKBqJ
    =+Yhw
    -----END PGP SIGNATURE-----
    
    ----------------------------------------------------------------------------
    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
    



    This archive was generated by hypermail 2b30 : Fri Sep 07 2001 - 15:25:34 PDT