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    Under Attack Again

    Attacks and Feathercoin Security
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    • wrapper
      wrapper Moderators last edited by

      Very interesting, what does the code say if the Block is in the past? As per the current block time anomalies?

      re: Why does Block 53872 has a time before block 53871?

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      • wrapper
        wrapper Moderators last edited by

        Here is my analysis of the inserted blocks over night and which coins were effected. Mainly UNOCS.

        I resolved the mincoin error, now I’ve got a trend. It was due to having to type the new block figures into the spreadsheet by hand, where cut and paste was disabled on the dustcoin.

        >>>>>>> Zero days means the calculated block start date coincides with the real coin announce start date.

        Coin 21st July Blocks 20th July Blocks Blocks 18.7.13 Reward Block Mins Block Time (Hrs) BlockTimeCalctRunningDays CalculatedEffectiveMiningStartDay Announce date Days Early 21.7.13 Days Early 20.7.13 Days Early 18.7.13
        Alphacoin 104203 0.5 0.008 #VALUE!
        Bottlecaps (CAP) 38183 0.000 0.000 21 July 2013 24 June 2013 -27.37 -27.36 -26.44
        Mincoin 75158 135109 75153 2 10 0.167 521.931 15 February 2012 01 May 2013 440.56 441.00 441.45
        Ixcoin 148590 148465 147530 96 10 0.167 1031.875 23 September 2010 10 August 2011 320.51 319.65 314.07
        Freicoin 30926 30911 30831 224 10 0.167 214.764 18 December 2012 11 May 2013 143.40 143.30 143.66
        PPCoin 59571 59393 58526 363.3 10 0.167 413.688 02 June 2012 10 August 2012 68.32 67.09 61.99
        NovaCoin 32860 32725 31855 9.85 10 0.167 228.194 05 December 2012 11 February 2013 67.83 66.90 61.77
        Bitcoin 247685 247529 246664 25 10 0.167 1720.035 04 November 2008 03 January 2009 59.67 58.59 53.50
        BitBar 16469 16332 15568 0.2 10 0.167 114.368 29 March 2013 02 May 2013 34.00 33.06 28.67
        Namecoin 122957 122797 121886 50 10 0.167 853.868 20 March 2011 18 April 2011 28.50 27.40 21.99
        Litecoin 392523 392008 389006 50 2.5 0.042 681.464 08 September 2011 07 October 2011 28.10 27.21 22.92
        ChinaCoin 59728 59728 59727 88 2.5 0.042 103.694 08 April 2013 01 May 2013 22.33 22.34 23.25
        Megacoin (MEC) 38070 37550 34572 250 2.4 0.040 63.450 18 May 2013 07 June 2013 19.08 18.23 14.18
        Bytecoin 18427 18410 18402 50 10 0.167 127.965 15 March 2013 01 April 2013 16.60 16.49 17.35
        PhenixCoin 67708 66722 64402 50 1.5 0.025 70.529 11 May 2013 20 May 2013 8.16 7.15 5.64
        Stablecoin (SBC) 88943 87146 76865 25 0.6666666666667 0.011 41.177 10 June 2013 15 June 2013 4.81 3.99 0.14
        Fastcoin (FST) 380482 373867 338167 32 0.2 0.003 52.845 29 May 2013 29 May 2013 -0.52 -1.43 -5.47
        Digitalcoin (DGC) 270719 266825 246892 20 0.3333333333333 0.006 62.666 19 May 2013 19 May 2013 -0.70 -1.59 -5.29
        Worldcoin (WDC) 382275 376879 349791 32 0.25 0.004 66.367 16 May 2013 14 May 2013 -2.00 -2.93 -6.71
        Feathercoin 53912 53503 50362 200 2.5 0.042 93.597 18 April 2013 16 April 2013 -2.77 -3.47 -8.01

        [attachment deleted by admin]

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        • A
          ASDASDASD last edited by

          FTC appears to be under attack again, just a heads up.

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          • wrapper
            wrapper Moderators last edited by

            I agree, here’s the latest analysis chart which shows which coins are under attack last 3 days. It is in terms of the number of false days worth of coins, inserted.

            Some of the “invalid” mined blocks could be due to extra “valid blocks” generated by manipulating the difficulty with DDoS on Pools.

            It’s obvious to me, from this chart, it is an outside element doing the attacks on all “viable” crypto coins, shouldn’t stick together to fight them off?

            Coin Additional Coin Days Added above block rate specification 18-21-July 2013 21st July Blocks 20th July Blocks Blocks 18.7.13
            Alphacoin 104203
            Bottlecaps (CAP) 38183
            Test 1yr 10min -0.98 52560.000 52560.000 52560.000
            Hypercoin (HYC) -0.98 20464 20464 20464
            ChinaCoin -0.98 59728 59728 59727
            Mincoin -0.94 75158 75155 75153
            Bytecoin -0.80 18427 18410 18402
            Nibble (NBL) -0.78 25027 25003 24912
            Freicoin -0.32 30926 30911 30831
            Luckycoin (LKY) -0.26 57050 56962 56015
            PhenixCoin 2.47 67708 66722 64402
            Terracoin 3.38 162577 162173 159438
            Devcoin 4.45 98324 98205 97543
            Digitalcoin (DGC) 4.54 270719 266825 246892
            BBQCoin 4.60 501132 500053 493093
            Stablecoin (SBC) 4.61 88943 87146 76865
            Worldcoin (WDC) 4.66 382275 376879 349791
            Franko 4.84 166681 164534 149921
            Megacoin (MEC) 4.85 38070 37550 34572
            Fastcoin (FST) 4.90 380482 373867 338167
            Litecoin 5.13 392523 392008 389006
            Feathercoin 5.19 53912 53503 50362
            BitBar 5.28 16469 16332 15568
            NovaCoin 6.00 32860 32725 31855
            Bitcoin 6.11 247685 247529 246664
            PPCoin 6.28 59571 59393 58526
            Ixcoin 6.38 148590 148465 147530
            Namecoin 6.46 122957 122797 121886

            [attachment deleted by admin]

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            • A
              ASDASDASD last edited by

              [quote name=“wrapper0feather” post=“22479” timestamp=“1374397712”]
              I agree, here’s the latest analysis chart which shows which coins are under attack last 3 days. It is in terms of the number of false days worth of coins, inserted.

              Some of the “invalid” mined blocks could be due to extra “valid blocks” generated by manipulating the difficulty with DDoS on Pools.

              It’s obvious to me, from this chart, it is an outside element doing the attacks on all “viable” crypto coins, shouldn’t stick together to fight them off?

              Coin Additional Coin Days Added above block rate specification 18-21-July 2013 21st July Blocks 20th July Blocks Blocks 18.7.13
              Alphacoin 104203
              Bottlecaps (CAP) 38183
              Test 1yr 10min -0.98 52560.000 52560.000 52560.000
              Hypercoin (HYC) -0.98 20464 20464 20464
              ChinaCoin -0.98 59728 59728 59727
              Mincoin -0.94 75158 75155 75153
              Bytecoin -0.80 18427 18410 18402
              Nibble (NBL) -0.78 25027 25003 24912
              Freicoin -0.32 30926 30911 30831
              Luckycoin (LKY) -0.26 57050 56962 56015
              PhenixCoin 2.47 67708 66722 64402
              Terracoin 3.38 162577 162173 159438
              Devcoin 4.45 98324 98205 97543
              Digitalcoin (DGC) 4.54 270719 266825 246892
              BBQCoin 4.60 501132 500053 493093
              Stablecoin (SBC) 4.61 88943 87146 76865
              Worldcoin (WDC) 4.66 382275 376879 349791
              Franko 4.84 166681 164534 149921
              Megacoin (MEC) 4.85 38070 37550 34572
              Fastcoin (FST) 4.90 380482 373867 338167
              Litecoin 5.13 392523 392008 389006
              Feathercoin 5.19 53912 53503 50362
              BitBar 5.28 16469 16332 15568
              NovaCoin 6.00 32860 32725 31855
              Bitcoin 6.11 247685 247529 246664
              PPCoin 6.28 59571 59393 58526
              Ixcoin 6.38 148590 148465 147530
              Namecoin 6.46 122957 122797 121886
              [/quote]

              All coins are being attacked? Hm…

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              • ?
                A Former User last edited by

                Nevermind Will edit in the morning

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                • ghostlander
                  ghostlander Regular Member last edited by

                  [quote name=“wrapper0feather” post=“22468” timestamp=“1374389156”]
                  Very interesting, what does the code say if the Block is in the past? As per the current block time anomalies?

                  re: Why does Block 53872 has a time before block 53871?
                  [/quote]

                  It’s allowed if within limits. There may be some clock drift, though servers are supposed to synchronise their clocks through NTP at least daily.

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                  • ghostlander
                    ghostlander Regular Member last edited by

                    [quote name=“111111111111111111111” post=“22476” timestamp=“1374395173”]
                    FTC appears to be under attack again, just a heads up.
                    [/quote]

                    That’s not an attack. The difficulty has decreased recently from 104.66 to 74.01, so profitability vs. BTC is 250%.

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                    • wrapper
                      wrapper Moderators last edited by

                      Here’s the latest chart’s showing the additional “coins mining days per day”, above what should have been mined. The red bars are from the change in block production, during attack. The blue shows where it has fallen back to currently.

                      I think there are still too many injected blocks in the “current condition”. I’ll retest later and see if indicates a more subtle attack, or if it is just due to lag in the difficulty change compensating for hash rate variability.

                      [attachment deleted by admin]

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                      • P
                        pyxis last edited by

                        Big Vern dropped us again about 40 mins ago.
                        His tweet “FTC trade paid is suspended again due to an attack that has broken the chain again.”

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                        • B
                          bigvern last edited by

                          [quote name=“Pyxis” post=“22502” timestamp=“1374413062”]
                          Big Vern dropped us again about 40 mins ago.
                          His tweet “FTC trade paid is suspended again due to an attack that has broken the chain again.”
                          [/quote]

                          Was only for a brief period while I checked out some stats. It was put back online quickly.

                          BigVern

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                          • wrapper
                            wrapper Moderators last edited by

                            Help, I think we are under attack again. Some addresses are getting impossible block rates, and my mining has gone to zero.

                            eg.? 6oXrGm4vwKUhqQR1hJaCMZoi2Eh7Weu2RW

                            1660a2cc29… 54421 2013-07-21 13:38:39 200 68400.66264736 FTC
                            6342aceef3… 54424 2013-07-21 13:47:18 200 68600.66264736 FTC
                            c9bb2291d0… 54425 2013-07-21 13:47:19 200 68800.66264736 FTC
                            7ea1e75d60… 54426 2013-07-21 13:47:20 200 69000.66264736 FTC
                            6f9ca0366c… 54428 2013-07-21 13:47:21 200 69200.66264736 FTC
                            40366f6003… 54431 2013-07-21 13:47:22 200 69400.66264736 FTC
                            2a2f7ae9df… 54430 2013-07-21 13:47:23 200 69600.66264736 FTC
                            0169b5ac0b… 54427 2013-07-21 13:47:25 200.000195 69800.66284236 FTC
                            9d46bf6d9b… 54432 2013-07-21 13:47:27 200.005 70000.66784236 FTC

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                            • B
                              bigvern last edited by

                              These block rates are not impossible. It is allowed to find blocks shorter than the allocated time window if the blockchain is shorter than it is expected to be at this point in time.

                              It’s my opinion that somebody has realized that many blockchains are underfilled, and are using their massive hashpower to get these blocks quickly until the chain reaches it’s maximum possible height.

                              I’m still finding blocks on fcpool, but not as often as expected - this is due to the large hashrate currently on the network. I’d expect difficulty to rise soon.

                              BigVern

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                              • wrapper
                                wrapper Moderators last edited by

                                *******

                                [attachment deleted by admin]

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                                • R
                                  RIPPEDDRAGON Regular Member last edited by

                                  With the diff jumping again and our hash rate about to drop we better be ready for another attack. Also if you have not seen the post about the hash rate on the stats page its been doing some weird stuff.

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                                  • wrapper
                                    wrapper Moderators last edited by

                                    Find the latest trend in Extra Mined Coin Days, in terms of days mined before the announce date. For the last 5 days.

                                    I have split the chart up to show the detail

                                    1.All coins being analysed
                                    2.Just coins in excesses of specification, no IxCoin.
                                    3.Just coins moving closer to excessive coins to specification.
                                    4.Just coins which have not produced the correct level of coins.

                                    There could be some modifications to the figures once someone checks the spreadsheet, but the trend is correct. I am sampling at about 10 to 11 GMT, so there will be a slight variability in 24 hr sample.

                                    [attachment deleted by admin]

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                                    • wrapper
                                      wrapper Moderators last edited by

                                      Charts of the Blocks per Day against the specified Number there should be mined. 18th to 23rd July.2013 Feathercoin.

                                      There were so many additional Blocks mined to specification on the 19th, the second graph is scaled to see the current detail.

                                      Happy to these figures double checked.

                                      [attachment deleted by admin]

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                                      • wrapper
                                        wrapper Moderators last edited by

                                        BigVern got me some better data from his logs of the coins mined per day. See attached charts,

                                        1. Feather Coin Blocks per day mined against theoretical block specification 20May to 20July 2013
                                        2. Blocks per week mined against theoretical block specification 20May to 20July 2013

                                        I’d like to see the difficulty added to that chart, so we can see how it varies. + average daily hash rate, would be even better.

                                        [attachment deleted by admin]

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                                        • wrapper
                                          wrapper Moderators last edited by

                                          I added a couple of days Block Production and the Difference at the end of each day, to BigVerns Data. See new chart.

                                          Feathercoin Block Production p Day - 23rdMay to 23 July 2013

                                          [attachment deleted by admin]

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                                          • J
                                            jeremiel Regular Member last edited by

                                            ************************

                                            becoming paranoid now…

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