hello MANDRAKE!

since today i have strange logs from ipchains.

ipchains is configured like this:

[root@orbit /etc/sysconfig]# ipchains -L
Chain input (policy ACCEPT):
target     prot opt     source                destination           ports
DENY       tcp  ----l- !192.168.0.0/24       anywhere              
netbios-ns:netbios-ssn ->   any
DENY       udp  ----l- !192.168.0.0/24       anywhere              
netbios-ns:netbios-ssn ->   any
Chain forward (policy ACCEPT):
target     prot opt     source                destination           ports
MASQ       tcp  ------  192.168.0.0/24       anywhere             
!netbios-ns:netbios-ssn ->   any
MASQ       udp  ------  192.168.0.0/24       anywhere             
!netbios-ns:netbios-ssn ->   any
DENY       tcp  ------  anywhere             192.168.0.0/24        any ->   
netbios-ns:netbios-ssn
DENY       udp  ------  anywhere             192.168.0.0/24        any ->   
netbios-ns:netbios-ssn
Chain output (policy ACCEPT):
target     prot opt     source                destination           ports
DENY       udp  ----l-  anywhere             !192.168.0.0/24        any ->   
netbios-ns:netbios-ssn
DENY       udp  ----l-  anywhere             !192.168.0.0/24        any ->   
netbios-ns:netbios-ssn
[root@orbit /etc/sysconfig]#

it startet with entries like this

Nov 23 14:24:32 orbit kernel: Packet log: input DENY ppp0 PROTO=17 130.192.56.97:137
212.185.245.71:137 L=78 S=0x00 I=5295 F=0x0000 T=115 (#2)

with the first ip is a system somewhere in the internet, the second IP
the system i connect to at my ISP.

these log entries are quite usual, mostly caused by dumb asses
scanning the system for security holes..

but later i got entries like this:

Nov 24 00:29:09 orbit kernel: Packet log: output DENY ppp0 PROTO=17 192.168.0.104:137
213.239.137.56:137 L=78 S=0x00 I=30419 F=0x0000 T=127 (#1) 

this is clearly a system from within, trying to connect to a system
outside..

what is it? i already checked the system within for viruses - without
success..

could smeone give me a hint?


thanks in advance,

PAT
--


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