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Message-Id: <20021104.091111.74753164.yasu@rightstuff.co.jp>
To: FreeBSD-users-jp@jp.FreeBSD.org
From: Kuwata Yasuo <yasu@rightstuff.co.jp>
In-Reply-To: <021103135537.M0104087@mako.kobe195.jp>
References: <20021103.110836.74751421.yasu@rightstuff.co.jp>
	<021103135537.M0104087@mako.kobe195.jp>
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Date: Mon, 04 Nov 2002 09:11:11 +0900
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Subject: [FreeBSD-users-jp 71674] Re: OPASERV (Virus)
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$B7,ED!w%i%$%H%9%?%C%U(B($B3t(B)$B$G$9!#(B

$B$_$J$5$s!"8f0U8+$"$j$,$H$&$4$6$$$^$9!#(B

$BCfB<$5$s!#(B
kaz> $B$I$3$+$i$I$&$_$F$b%&%#%k%9$J$s$G$9$,!":n<T(B($BC#(B)$B$,!V$3$l$O%&%#%k%9(B
kaz> $B$G$O$J$$!*!W$H<gD%$7$F$$$k$@$1$G!"%Q%?!<%s%U%!%$%k$K$b:\$;$i$l$J$$(B
kaz> spyware$B$NN`$b$"$j$^$9$7!"%&%#%k%9%A%'%C%+$KMj$k$N$O$b$O$d4m81(B
kaz> $B$G$9$7$M!#(B

$BBg>l$5$s!#(B
ohba> >$B%"%s%A%&%#%k%9$K4X$7$F$O(B Norton Utility $B$rF~$l$F$"$C$?$N$G$9$,!"(B
ohba> >$B%&%#%k%9%G!<%?%Y!<%9$N99?7$rBU$C$F$$$?$h$&$G$9(B (^^;
ohba> 
ohba> $BF~$l$?$C$F;H$C$F$J$$$KEy$7$$$N$G$O%@%a$8$c$s!D(B
   -- snip --
ohba> >$B$I$3$+$N(B WEB $B%Z!<%8$N1\Mw$N:]$K<u$1<h$C$F$7$^$C$?(B($BAw$jIU$1$i$l$?(B)
ohba> >$B$N$G$O$J$$$+$HA[A|$7$F$$$^$9(B($B3N$?$k>Z5r$,$"$k$o$1$G$O$"$j$^$;$s(B)$B!#(B
ohba> 
ohba> $B%V%i%&%67PM3$G46@w$7$?$s$@$C$?$i(B
ohba> IE$B$NF~$l49$($b$7$F$J$$$C$F$3$H$G$9$+!)(B

$B$?$7$+$K%&%#%k%9%A%'%C%+!<$O!VF~$l$F$*$/$b$N!W$G$O$J$/$F(B
$B!V1?MQ$9$k$b$N!W$H9M$($J$$$H$$$1$J$$$G$9$M!"H?>J(B $B!d(B $B<+J,(B

$B$?$@$=$l$K$7$F$b!"%$%s%7%G%s%H$,H/@8$7$J$$$HBP1~$G$-$J$$(B
$B$H$$$&F($l$i$l$J$$=IL?$K$b$A$g$C$H5u$7$$$b$N$b46$8$?$j$7$F(B ...
$B!JH]Dj$7$F$$$k$o$1$G$O$"$j$^$;$s!"G0$N$?$a(B)

$B$=$l$H%V%i%&%6(B(IE)$B$OF~$l49$($F$^$9$7!"$&$A$G$O(B
OutlookExpress, InternetExplorer $B$O;HMQ6X;_$K$7$F$$$^$9(B (^^;)
$B!V(BWEB $B%Z!<%8$+$i$G$O!W$H$$$&$N$O2DG=@-$N0l$D$H$7$FH]Dj$G$-$J$$!"(B
$B$H$$$&$3$H$G$9(B($BC1$J$k8@$$Lu(B ^^;)$B!#(B

$BCfB<$5$s!#(B
kaz> >$B:#2s$N$h$&$KFbIt$+$i(B DoS $B967b$r$9$k$h$&$J%&%#%k%9$K4X$7$F!"(B
kaz> >$B%U%!%$%"%&%)!<%k$N1?MQ$H$7$F$I$N$h$&$JJ}:v$,$"$k$+!"$H$$$&$3$H$G$9!#(B
kaz> $B!V30It$+$i$N967b$@$1$G$J$/!"FbIt$+$i$N967b$K$bHw$($F!"(Bfirewall
kaz> $B$N%k!<%k$OAPJ}8~$G9M$($h!W$H$$$&$N$O%M%C%H%o!<%/4IM}<T$N>o<1$@!#(B
kaz> $B!D$H$$$&$N$O(BJAIST$B;~Be$K%Q%8%'%mBg2&MM$K65$o$j$^$7$?!#<u$1Gd$j$G(B
kaz> $B$4$a$s!#(B
kaz> 
kaz> FreeBSD$B$N>l9g$O!"(Bipfw(8)$B$GBS0h@)8B(Bfirewall$B$,9=C[=PMh$F!"(BDoS
kaz> $B967b$K$O$3$l$,$H$F$bM-8z$@$H;W$$$^$9!#(Bman$B$N%H%i%U%#%C%/%7%'%$%Q(B
kaz> $B$N9`$r8+$k$H(B"bit/s|Byte/s"$B$G@)8B$G$-$k$h$&$K=q$$$F$"$j$^$9$,!"(B
kaz> $B$=$l$@$1$G$J$/!"(Bpps(packet/s)$B$G$b@)8B$G$-$k$_$?$$$G$9!#@_Dj$7$?(B
kaz> $B3P$($,L5$$$N$G$9$,!"8w%U%!%$%PB&$N(BI/F$B$K;~@^!V(B200pps$B$r1[$($k(B
kaz> icmp echo$B%j%/%(%9%H$,Mh$?$+$i%Q%1%C%H$r<N$F$?$h!W$_$?$$$J(B
kaz> $B%a%C%;!<%8$,(Bsyslog$B$K;D$C$F$$$^$9!#(B

$B1|;3$5$s!#(B
okuyamak> $B$H$$$&$3$H$O!"4pK\E*$KIaCJ$OFbB&$O?.Mj$7$F!"(BAnti-Virus$B$rF0$+$7!"$A$c(B
okuyamak> $B$s$H>pJs$r(B *$BKh(B*$BF|(B* update$B$9$k(B($B$N$rA4It<+F0E*$K$d$k!#$=$N$?$a$K$b!"Fb(B
okuyamak> $BB&$N%^%7%s$O0lF|0lEY$OI,$:5/F0$9$k(B)$B!#$G!"$=$l$G$b46@w$,H/8+$5$l$?$i(B
okuyamak> $B$=$N$H$-$K$OFb30$r@Z$jN%$7$F2H$NCf$N%^%7%s$N@0Hw$r$9$k!D$0$i$$$7$+<j(B
okuyamak> $B$,L5$$$h$&$K46$8$^$9$,(B?

ipfw $B$GBS0h@)8B$G$-$k$H$$$&$N$O!":#2s=i$a$F$FCN$j$^$7$?!#(B
DoS $B967b$K$O$?$7$+$KM-8z$G$9$M!#(B
$B$=$l$K$7$F$b!"0lHV4N?4$J$N$OF|!9$N%a%s%F%J%s%9$G$"$k$H$$$&(B
$B?4$,$1$G$9$M!#(B

$B!V%&%#%k%9BP:v$C$F!"@o$$$J$s$@!W$C$F$3$H$+$J$"(B ... $B:#99(B (^^;)

PFA03027>  $B$3$N$h$&$JL\E*$J$i$P!"%M%C%H%o!<%/?/F~8!CN%7%9%F%`$rF3F~$9(B
PFA03027> $B$l$P$$$$$N$G$O$J$$$G$7$g$&$+!)(B
PFA03027>  $B;d$O;HMQ$7$?$3$H$,$J$$$N$G!":#2s$N>l9g$KE,MQ$G$-$k$+$o$+$j(B
PFA03027> $B$^$;$s$,!"(Bports$B$K(Bsnort$B$H$$$&$N$,$"$j$^$9!#8!F$$5$l$F$_$F$O$$(B
PFA03027> $B$+$,$G$7$g$&$+!)(B

$B$O$$!"(Bsnort $B$OF~$l$h$&$H;W$C$F=`Hw$O?J$a$F$$$^$7$?$,!"(B
$B$A$g$&$I(B 1$B=54VA0$K(B OCN $B%(%3%N%_!<$+$i%U%l%C%D(B ADSL $B$K(B
$BJQ99$7$?$P$+$j$G%4%?%4%?$7$F$*$j!"8e<j$K$^$o$C$F(B
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$B$H$$$&$o$1$G!V6571!W!#(B

1. $B967b$OFbB&$+$i$K$bHw$($h(B
2. $B%&%#%k%9%A%'%C%+!<$O!V1?MQ$9$k$b$N!W$G$"$k(B
3. $B%D!<%k$OM-8z$K;H$((B
4. $B%&%#%k%9BP:v$OF|!9$N%a%s%F$,Bh0lJb(B

---
##########################################
# $B7,ED9/IW!w%i%$%H%9%?%C%U3t<02q<R(B
# yasu@rightstuff.co.jp
# http://www.rightstuff.co.jp/~yasu/
##########################################
