Port probes: 1680 UDP, 9393 TCP, and 4000 TCP

From: Paul Gear (paulgearat_private)
Date: Mon Jun 18 2001 - 05:01:33 PDT

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    Hi All,
    
    I'm new to this list and am wondering if you can point me to some info
    about the following port probes (from my Red Hat 7.0 box):
    
    
    1.  1680 UDP
    
    ... kernel: Packet log: input DENY ppp0 PROTO=17 xxx.xxx.xxx.xxx:1680
    xxx.xxx.xxx.xxx:1680 L=90 S=0x00 I=47873 F=0x0000 T=127 (#84)
    
    What is port 1680?  I can't seem to find any information on it anywhere
    on the web.  I've only seen this one packet, and it was from the IP
    address adjacent to mine on the dialup bank.
    
    
    2.  9393 TCP
    
    Here's another one that i haven't been able to track down.  Any ideas on
    this one?
    
    ... kernel: Packet log: input DENY ppp0 PROTO=6 xxx.xxx.xxx.xxx:61654
    xxx.xxx.xxx.xxx:9393 L=64 S=0x10 I=53493 F=0x4000 T=99 SYN (#85)
    ... kernel: Packet log: input DENY ppp0 PROTO=6 xxx.xxx.xxx.xxx:61654
    xxx.xxx.xxx.xxx:9393 L=64 S=0x10 I=53749 F=0x4000 T=99 SYN (#85)
    ... kernel: Packet log: input DENY ppp0 PROTO=6 xxx.xxx.xxx.xxx:61654
    xxx.xxx.xxx.xxx:9393 L=64 S=0x10 I=54005 F=0x4000 T=99 SYN (#85)
    ... kernel: Packet log: input DENY ppp0 PROTO=6 xxx.xxx.xxx.xxx:61654
    xxx.xxx.xxx.xxx:9393 L=64 S=0x10 I=58101 F=0x4000 T=99 SYN (#85)
    
    I had several repeats of this sort of scan, all from hosts in Romania.
    
    
    3.  4000 TCP
    
    I've had a few scans from dialup addresses in Russia on port 4000 TCP,
    which i understand is usually ICQ, but why would i be getting port scans
    just from this one place?
    
    Thanks in advance,
    Paul
    http://paulgear.webhop.net
    



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