以下のメールは、ハッカーが侵入後使用するスクリプトを修正して、
テスト用サーバ上で実行した際に送信されたメールの内容になります。
このハッカーは、
①侵入
②ルートキットのインストール
③侵入先コンピュータのパスワード情報をメールで送信(以下のメール)
という手順でハッキングを繰り返しているようです。
------------------------------------------------------
送信者： root <root@RedHat7.3>
件名： Cool
日時： 2004年10月19日 07:28:49
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 RedHat7.3 RedHat7 localhost.localdomain localhost
inet addr:192.168.221.180 Bcast:192.168.221.255 Mask:255.255.255.0
inet addr:127.0.0.1 Mask:255.0.0.0
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
news:x:9:13:news:/var/spool/news:
uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
gopher:x:13:30:gopher:/var/gopher:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin
mailnull:x:47:47::/var/spool/mqueue:/dev/null
rpm:x:37:37::/var/lib/rpm:/bin/bash
ntp:x:38:38::/etc/ntp:/sbin/nologin
rpc:x:32:32:Portmapper RPC user:/:/sbin/nologin
xfs:x:43:43:X Font Server:/etc/X11/fs:/bin/false
gdm:x:42:42::/var/gdm:/sbin/nologin
rpcuser:x:29:29:RPC Service User:/var/lib/nfs:/sbin/nologin
nfsnobody:x:65534:65534:Anonymous NFS User:/var/lib/nfs:/sbin/nologin
nscd:x:28:28:NSCD Daemon:/:/bin/false
ident:x:98:98:pident user:/:/sbin/nologin
radvd:x:75:75:radvd user:/:/bin/false
postgres:x:26:26:PostgreSQL Server:/var/lib/pgsql:/bin/bash
apache:x:48:48:Apache:/var/www:/bin/false
squid:x:23:23::/var/spool/squid:/dev/null
named:x:25:25:Named:/var/named:/bin/false
pcap:x:77:77::/var/arpwatch:/sbin/nologin
amanda:x:33:6:Amanda user:/var/lib/amanda:/bin/bash
junkbust:x:73:73::/etc/junkbuster:/bin/bash
mailman:x:41:41:GNU Mailing List Manager:/var/mailman:/bin/false
mysql:x:27:27:MySQL Server:/var/lib/mysql:/bin/bash
netdump:x:34:34:Network Crash Dump user:/var/crash:/bin/bash
ldap:x:55:55:LDAP User:/var/lib/ldap:/bin/false
postfix:x:89:89::/var/spool/postfix:/bin/true
pvm:x:24:24::/usr/share/pvm3:/bin/bash
iss:x:500:500::/home/iss:/bin/bash
Cool:x:505:506:Cool User:/home/Cool:/bin/bash
root:$1$S3cdSn/p$icG/9pRdeooUDbhL/bXzN1:12512:0:99999:7:::
bin:*:12512:0:99999:7:::
daemon:*:12512:0:99999:7:::
adm:*:12512:0:99999:7:::
lp:*:12512:0:99999:7:::
sync:*:12512:0:99999:7:::
shutdown:*:12512:0:99999:7:::
halt:*:12512:0:99999:7:::
mail:*:12512:0:99999:7:::
news:*:12512:0:99999:7:::
uucp:*:12512:0:99999:7:::
operator:*:12512:0:99999:7:::
games:*:12512:0:99999:7:::
gopher:*:12512:0:99999:7:::
ftp:*:12512:0:99999:7:::
nobody:*:12512:0:99999:7:::
vcsa:!!:12512:0:99999:7:::
mailnull:!!:12512:0:99999:7:::
rpm:!!:12512:0:99999:7:::
ntp:!!:12512:0:99999:7:::
rpc:!!:12512:0:99999:7:::
xfs:!!:12512:0:99999:7:::
gdm:!!:12512:0:99999:7:::
rpcuser:!!:12512:0:99999:7:::
nfsnobody:!!:12512:0:99999:7:::
nscd:!!:12512:0:99999:7:::
ident:!!:12512:0:99999:7:::
radvd:!!:12512:0:99999:7:::
postgres:!!:12512:0:99999:7:::
apache:!!:12512:0:99999:7:::
squid:!!:12512:0:99999:7:::
named:!!:12512:0:99999:7:::
pcap:!!:12512:0:99999:7:::
amanda:!!:12512:0:99999:7:::
junkbust:!!:12512:0:99999:7:::
mailman:!!:12512:0:99999:7:::
mysql:!!:12512:0:99999:7:::
netdump:!!:12512:0:99999:7:::
ldap:!!:12512:0:99999:7:::
postfix:!!:12512:0:99999:7:::
pvm:!!:12512:0:99999:7:::
テスト用サーバ上で実行した際に送信されたメールの内容になります。
このハッカーは、
①侵入
②ルートキットのインストール
③侵入先コンピュータのパスワード情報をメールで送信(以下のメール)
という手順でハッキングを繰り返しているようです。
------------------------------------------------------
送信者： root <root@RedHat7.3>
件名： Cool
日時： 2004年10月19日 07:28:49
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 RedHat7.3 RedHat7 localhost.localdomain localhost
inet addr:192.168.221.180 Bcast:192.168.221.255 Mask:255.255.255.0
inet addr:127.0.0.1 Mask:255.0.0.0
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
news:x:9:13:news:/var/spool/news:
uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
gopher:x:13:30:gopher:/var/gopher:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin
mailnull:x:47:47::/var/spool/mqueue:/dev/null
rpm:x:37:37::/var/lib/rpm:/bin/bash
ntp:x:38:38::/etc/ntp:/sbin/nologin
rpc:x:32:32:Portmapper RPC user:/:/sbin/nologin
xfs:x:43:43:X Font Server:/etc/X11/fs:/bin/false
gdm:x:42:42::/var/gdm:/sbin/nologin
rpcuser:x:29:29:RPC Service User:/var/lib/nfs:/sbin/nologin
nfsnobody:x:65534:65534:Anonymous NFS User:/var/lib/nfs:/sbin/nologin
nscd:x:28:28:NSCD Daemon:/:/bin/false
ident:x:98:98:pident user:/:/sbin/nologin
radvd:x:75:75:radvd user:/:/bin/false
postgres:x:26:26:PostgreSQL Server:/var/lib/pgsql:/bin/bash
apache:x:48:48:Apache:/var/www:/bin/false
squid:x:23:23::/var/spool/squid:/dev/null
named:x:25:25:Named:/var/named:/bin/false
pcap:x:77:77::/var/arpwatch:/sbin/nologin
amanda:x:33:6:Amanda user:/var/lib/amanda:/bin/bash
junkbust:x:73:73::/etc/junkbuster:/bin/bash
mailman:x:41:41:GNU Mailing List Manager:/var/mailman:/bin/false
mysql:x:27:27:MySQL Server:/var/lib/mysql:/bin/bash
netdump:x:34:34:Network Crash Dump user:/var/crash:/bin/bash
ldap:x:55:55:LDAP User:/var/lib/ldap:/bin/false
postfix:x:89:89::/var/spool/postfix:/bin/true
pvm:x:24:24::/usr/share/pvm3:/bin/bash
iss:x:500:500::/home/iss:/bin/bash
Cool:x:505:506:Cool User:/home/Cool:/bin/bash
root:$1$S3cdSn/p$icG/9pRdeooUDbhL/bXzN1:12512:0:99999:7:::
bin:*:12512:0:99999:7:::
daemon:*:12512:0:99999:7:::
adm:*:12512:0:99999:7:::
lp:*:12512:0:99999:7:::
sync:*:12512:0:99999:7:::
shutdown:*:12512:0:99999:7:::
halt:*:12512:0:99999:7:::
mail:*:12512:0:99999:7:::
news:*:12512:0:99999:7:::
uucp:*:12512:0:99999:7:::
operator:*:12512:0:99999:7:::
games:*:12512:0:99999:7:::
gopher:*:12512:0:99999:7:::
ftp:*:12512:0:99999:7:::
nobody:*:12512:0:99999:7:::
vcsa:!!:12512:0:99999:7:::
mailnull:!!:12512:0:99999:7:::
rpm:!!:12512:0:99999:7:::
ntp:!!:12512:0:99999:7:::
rpc:!!:12512:0:99999:7:::
xfs:!!:12512:0:99999:7:::
gdm:!!:12512:0:99999:7:::
rpcuser:!!:12512:0:99999:7:::
nfsnobody:!!:12512:0:99999:7:::
nscd:!!:12512:0:99999:7:::
ident:!!:12512:0:99999:7:::
radvd:!!:12512:0:99999:7:::
postgres:!!:12512:0:99999:7:::
apache:!!:12512:0:99999:7:::
squid:!!:12512:0:99999:7:::
named:!!:12512:0:99999:7:::
pcap:!!:12512:0:99999:7:::
amanda:!!:12512:0:99999:7:::
junkbust:!!:12512:0:99999:7:::
mailman:!!:12512:0:99999:7:::
mysql:!!:12512:0:99999:7:::
netdump:!!:12512:0:99999:7:::
ldap:!!:12512:0:99999:7:::
postfix:!!:12512:0:99999:7:::
pvm:!!:12512:0:99999:7:::