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What would prevent a DoS attack?

My internet has gone really slow lately, is it because of [DoS] Attacks.?

  • I have been getting slow internet, I looked into my router settings and found this in Security Logs: [DoS attack]from source:85.241.54.113, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=48 ID=25785 DF PROTO=TCP SPT:64371 DPT:56521 WINDOW=65535 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:32 [DoS attack]from source:92.18.22.86, destination source:192.168.0.5 LEN=52 TOS=0x00 PREC=0x00 TTL=113 ID=9333 DF PROTO=TCP SPT:64666 DPT:56521 WINDOW=8192 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:33 [DoS attack]from source:69.143.244.234, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=115 ID=30477 DF PROTO=TCP SPT:56963 DPT:56521 WINDOW=8192 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:41 [DoS attack]from source:176.14.96.206, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=112 ID=18935 DF PROTO=TCP SPT:2432 DPT:56521 WINDOW=64380 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:41 [DoS attack]from source:174.134.232.13, destination source:192.168.0.5 LEN=64 TOS=0x00 PREC=0x00 TTL=46 ID=33135 DF PROTO=TCP SPT:59944 DPT:56521 WINDOW=65535 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:41 [DoS attack]from source:96.56.1.122, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=106 ID=9120 DF PROTO=TCP SPT:49814 DPT:56521 WINDOW=8192 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:41 [DoS attack]from source:174.134.232.13, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=46 ID=33126 DF PROTO=TCP SPT:59944 DPT:56521 WINDOW=65535 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:47 [DoS attack]from source:189.106.183.102, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=112 ID=8390 DF PROTO=TCP SPT:39284 DPT:56521 WINDOW=65535 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:47 [DoS attack]from source:88.218.90.158, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=111 ID=40423 DF PROTO=TCP SPT:3493 DPT:56521 WINDOW=65535 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:47 [DoS attack]from source:78.84.172.206, destination source:192.168.0.5 LEN=52 TOS=0x00 PREC=0x00 TTL=115 ID=28976 DF PROTO=TCP SPT:54813 DPT:56521 WINDOW=8192 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:47 [DoS attack]from source:82.9.207.41, destination source:192.168.0.5 LEN=52 TOS=0x00 PREC=0x00 TTL=118 ID=16425 DF PROTO=TCP SPT:52078 DPT:56521 WINDOW=8192 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:48 [DoS attack]from source:207.191.252.26, destination source:192.168.0.5 LEN=52 TOS=0x00 PREC=0x00 TTL=112 ID=7410 DF PROTO=TCP SPT:53061 DPT:56521 WINDOW=8192 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:48 [DoS attack]from source:84.215.240.37, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=115 ID=4433 DF PROTO=TCP SPT:50115 DPT:56521 WINDOW=8192 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:49 [DoS attack]from source:174.134.232.13, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=46 ID=1313 DF PROTO=TCP SPT:59944 DPT:56521 WINDOW=65535 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:51 [DoS attack]from source:82.9.207.41, destination source:192.168.0.5 LEN=52 TOS=0x00 PREC=0x00 TTL=118 ID=16540 DF PROTO=TCP SPT:52078 DPT:56521 WINDOW=8192 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:51 [DoS attack]from source:78.84.172.206, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=115 ID=30427 DF PROTO=TCP SPT:54813 DPT:56521 WINDOW=8192 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:53 [DoS attack]from source:89.176.215.182, destination source:192.168.0.5 LEN=52 TOS=0x00 PREC=0x00 TTL=113 ID=29393 DF PROTO=TCP SPT:60419 DPT:56521 WINDOW=8192 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:53 [DoS attack]from source:86.161.185.128, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=108 ID=27330 DF PROTO=TCP SPT:4904 DPT:56521 WINDOW=65535 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:55 [DoS attack]from source:189.106.183.102, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=112 ID=8624 DF PROTO=TCP SPT:39284 DPT:56521 WINDOW=65535 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:56 [DoS attack]from source:24.90.39.186, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=113 ID=540 DF PROTO=TCP SPT:3229 DPT:56521 WINDOW=65535 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:56 [DoS attack]from source:78.72.170.236, destination source:192.168.0.5 LEN=56 TOS=0x00 PREC=0x00 TTL=113 ID=1198 DF PROTO=TCP SPT:61826 DPT:56521 WINDOW=8192 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:56 [DoS attack]from source:93.139.181.18, destination source:192.168.0.5 LEN=48 TOS=0x00 PREC=0x00 TTL=19 ID=3536 DF PROTO=TCP SPT:51194 DPT:56521 WINDOW=8192 RES=0x00 SYN URGP=0 - Sun, 2011-11-06 14:02:56 There are more but I will run out of characters. Is there anything I can do to prevent this: Virginmedia 10MB/s connection. Please help, do I have a virus, how can I troubleshoot?

  • Answer:

    Yes... seems like Denial of Service. Run a virus scan.If it doesn't pick up on anything, run another virus scan by installing a different one (and installing the original virus scan). Eventully a viru scan will pick it up

Joe Hammond at Yahoo! Answers Visit the source

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try to reset your router maybe it is trafficking

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