不正アクセスされてるのでしょうか

以前ここで不正アクセスについて質問した時ルーターのログが無いと分からないと言われたので一部ですけど載せます。昨日昼３時から今朝６時までネットしてません。家族もです。１月１日から３月９日までログには何も出てなかったんですけど９日にルーターのパスワードを変えたら大量にログが出るようになりました。９日にはマイクロソフトのアカウントに自分と同じＩＰで自分ではない人物のサインインがありました。




2016/03/11 03:41:17 DHCPC Info : Subnet Mask = 255.255.255.0
2016/03/11 03:41:17 DHCPC Info : IP Address = 192.168.3.3
2016/03/11 03:41:17 DHCPC DHCP_ACK received from (192.168.3.1)
2016/03/11 03:41:17 DHCPC Renew : sending DHCP_REQUEST for 192.168.3.3 to 192.168.3.1
2016/03/11 03:38:37 AUTH ath0: STA 8c:a9:82:6b:3f:c4 IEEE 802.11: deassociated
2016/03/11 03:38:11 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 03:36:52 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 03:36:47 DHCPS sending ACK to 192.168.11.2
2016/03/11 03:36:47 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 03:36:44 AUTH wl0: AUTH: PSK authentication successful: 8c:a9:82:6b:3f:c4
2016/03/11 03:36:44 WIRELESS ath0: had associated successfully : 8c:a9:82:6b:3f:c4
2016/03/11 03:32:48 AUTH wl0: AUTH: Updating group key
2016/03/11 03:28:37 AUTH ath0: STA 8c:a9:82:6b:3f:c4 IEEE 802.11: deassociated
2016/03/11 03:28:07 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 03:26:48 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 03:26:44 DHCPS sending ACK to 192.168.11.2
2016/03/11 03:26:44 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 03:26:40 AUTH wl0: AUTH: PSK authentication successful: 8c:a9:82:6b:3f:c4
2016/03/11 03:26:40 WIRELESS ath0: had associated successfully : 8c:a9:82:6b:3f:c4
2016/03/11 03:18:37 AUTH ath0: STA 8c:a9:82:6b:3f:c4 IEEE 802.11: deassociated
2016/03/11 03:17:51 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 03:16:39 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 03:16:39 DHCPS sending ACK to 192.168.11.2
2016/03/11 03:16:39 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 03:16:36 AUTH wl0: AUTH: PSK authentication successful: 8c:a9:82:6b:3f:c4
2016/03/11 03:16:36 WIRELESS ath0: had associated successfully : 8c:a9:82:6b:3f:c4
2016/03/11 03:08:38 AUTH ath0: STA 8c:a9:82:6b:3f:c4 IEEE 802.11: deassociated
2016/03/11 03:08:06 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 03:06:48 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 03:06:44 DHCPS sending ACK to 192.168.11.2
2016/03/11 03:06:44 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 03:06:40 AUTH wl0: AUTH: PSK authentication successful: 8c:a9:82:6b:3f:c4
2016/03/11 03:06:38 WIRELESS ath0: had associated successfully : 8c:a9:82:6b:3f:c4
2016/03/11 02:58:38 AUTH ath0: STA 8c:a9:82:6b:3f:c4 IEEE 802.11: deassociated
2016/03/11 02:58:17 AUTH wl0: AUTH: PSK authentication successful: 8c:a9:82:6b:3f:c4
2016/03/11 00:46:15 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 00:46:12 AUTH wl0: AUTH: PSK authentication successful: 8c:a9:82:6b:3f:c4
2016/03/11 00:46:12 WIRELESS ath0: had associated successfully : 8c:a9:82:6b:3f:c4
2016/03/11 00:38:09 AUTH ath0: STA 8c:a9:82:6b:3f:c4 IEEE 802.11: deassociated
2016/03/11 00:37:37 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 00:36:14 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 00:36:11 DHCPS sending ACK to 192.168.11.2
2016/03/11 00:36:11 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 00:36:11 AUTH wl0: AUTH: PSK authentication successful: 8c:a9:82:6b:3f:c4
2016/03/11 00:36:11 WIRELESS ath0: had associated successfully : 8c:a9:82:6b:3f:c4
2016/03/11 00:32:48 AUTH wl0: AUTH: Updating group key
2016/03/11 00:28:07 AUTH ath0: STA 8c:a9:82:6b:3f:c4 IEEE 802.11: deassociated
2016/03/11 00:27:29 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 00:26:16 DHCPS Request incoming from maiko-PC(len:8)
2016/03/11 00:26:12 DHCPS sending ACK to 192.168.11.2

No.1 回答者： て2くん 回答日時： 2016/03/11 20:25

LAN内の接続ログだと思われますが

maiko-PC　の所有者が接続しているログですけどね
maiko-PCのMACアドレスは、8c:a9:82:6b:3f:c4だと思われますが

ルータの時間のずれは何秒か、あとは、タイムゾーンがGMTかJSTかも確認している方がよいですよ
JSTが多いと思いますけどもね。GMTって可能性もありますので