Trojaner-Board - Internet wird extrem langsam / Ereignislog

Zur sicherheit noch mal hier ein post, da ich mir doch nicht sicher bin ob es ein virus ist.
Ich habe seit geraumer Zeit das Problem dass mein internet jede minute extrem langsam wird oder sogar die verbindung trennt. Ich habe darauf im Router Menü nachgeschaut und habe folgendes in meinem Ereignislogbuch gefunden

06/01/2015 19:34:00 **TCP FIN Scan** 192.168.2.105, 65394->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:33:59 **TCP FIN Scan** 192.168.2.105, 65477->> 17.178.104.60, 443 (from PPPoE1 Outbound)
06/01/2015 19:33:59 **Vecna Scan** 192.168.2.105, 65392->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:33:58 **TCP FIN Scan** 192.168.2.105, 65529->> 17.178.104.60, 443 (from PPPoE1 Outbound)
06/01/2015 19:33:30 **Vecna Scan** 192.168.2.105, 64636->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:33:29 **TCP FIN Scan** 192.168.2.105, 65387->> 17.173.255.61, 443 (from PPPoE1 Outbound)
06/01/2015 19:33:28 **Vecna Scan** 192.168.2.105, 65369->> 17.173.255.61, 443 (from PPPoE1 Outbound)
06/01/2015 19:33:28 **TCP FIN Scan** 192.168.2.105, 65349->> 17.173.255.61, 443 (from PPPoE1 Outbound)
06/01/2015 19:33:27 **TCP FIN Scan** 192.168.2.105, 65190->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:33:27 **Vecna Scan** 192.168.2.105, 65022->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:33:26 **Vecna Scan** 192.168.2.105, 65006->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:33:25 **TCP FIN Scan** 192.168.2.105, 65383->> 17.173.255.61, 443 (from PPPoE1 Outbound)
06/01/2015 19:33:24 **TCP FIN Scan** 192.168.2.105, 65364->> 17.173.255.61, 443 (from PPPoE1 Outbound)
06/01/2015 19:33:24 **Vecna Scan** 192.168.2.105, 64153->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:33:08 **Vecna Scan** 192.168.2.105, 64335->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:33:08 **TCP FIN Scan** 192.168.2.105, 65235->> 17.173.255.61, 443 (from PPPoE1 Outbound)
06/01/2015 19:33:07 **TCP FIN Scan** 192.168.2.105, 65090->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:33:07 **TCP FIN Scan** 192.168.2.105, 65198->> 17.173.255.61, 443 (from PPPoE1 Outbound)
06/01/2015 19:31:30 **Vecna Scan** 192.168.2.105, 64990->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:30 **Vecna Scan** 192.168.2.105, 64613->> 17.154.239.23, 443 (from PPPoE1 Outbound)
06/01/2015 19:31:30 **TCP FIN Scan** 192.168.2.105, 64637->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:29 **Vecna Scan** 192.168.2.105, 64352->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:27 **TCP FIN Scan** 192.168.2.105, 64362->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:27 **Vecna Scan** 192.168.2.105, 64620->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:27 **TCP FIN Scan** 192.168.2.105, 65076->> 17.178.104.60, 443 (from PPPoE1 Outbound)
06/01/2015 19:31:26 **Vecna Scan** 192.168.2.105, 64121->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:26 **Vecna Scan** 192.168.2.105, 64118->> 17.154.239.47, 443 (from PPPoE1 Outbound)
06/01/2015 19:31:25 **TCP FIN Scan** 192.168.2.105, 65057->> 17.178.104.60, 443 (from PPPoE1 Outbound)
06/01/2015 19:31:25 **Vecna Scan** 192.168.2.105, 64606->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:24 **TCP FIN Scan** 192.168.2.105, 65033->> 17.178.104.60, 443 (from PPPoE1 Outbound)
06/01/2015 19:31:24 **TCP FIN Scan** 192.168.2.105, 64606->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:23 **Vecna Scan** 192.168.2.105, 64744->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:22 **TCP FIN Scan** 192.168.2.105, 64754->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:22 **TCP FIN Scan** 192.168.2.105, 65024->> 17.178.104.60, 443 (from PPPoE1 Outbound)
06/01/2015 19:31:22 **Vecna Scan** 192.168.2.105, 64742->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:13 **Vecna Scan** 192.168.2.105, 64356->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:13 **TCP FIN Scan** 192.168.2.105, 64364->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:13 **TCP FIN Scan** 192.168.2.105, 64935->> 17.178.104.60, 443 (from PPPoE1 Outbound)
06/01/2015 19:31:12 **TCP FIN Scan** 192.168.2.105, 64901->> 17.178.104.60, 443 (from PPPoE1 Outbound)
06/01/2015 19:31:11 **TCP FIN Scan** 192.168.2.105, 64302->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:11 **Vecna Scan** 192.168.2.105, 64135->> 2.16.200.93, 80 (from PPPoE1 Outbound)
06/01/2015 19:31:11 **TCP FIN Scan** 192.168.2.105, 64893->> 17.178.104.60, 443 (from PPPoE1 Outbound)

Dies wiederholt sich immer solange ich mit meinem PC verbunden bin. Als andere PCs verbunden waren ist dieser Fehler nicht aufgetreten.

Habe schon meinen PC zurückgesetzt, aber der Fehler taucht immer noch auf. (mir wichtige Daten habe ich natürlich vorher gesichert^^)

Vielen Dank schon mal für eure Hilfe.