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    Under Attack Again

    Attacks and Feathercoin Security
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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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                                        • J
                                          jeremiel Regular Member last edited by

                                          What? 15 to 30 Ghash? stats says 5 ghash or 7.9 to 10 from 1.5

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                                          • G
                                            groll Regular Member last edited by

                                            their is someone with 51% . he play a bit with the time of the blocks so stats page is just crazzy. but it seems he is playing in the 5-45 minutes difference in the past. not sure if it’s a try to manipulate without fork the time of the chain or he just want to be spotted and spread fear.

                                            but [url=http://explorer.feathercoin.com/a/72yA8EccyG]http://explorer.feathercoin.com/a/72yA8EccyG[/url] has found 297 block from 56962 and 57475. so 297/513= 58%

                                            But from 6900 to 57470 he don’t have really fork the chain (3 times 1 blocks fork occur but this can be normal. have a low probability to happen but possible and 1 one block fork isolated should have no consequence)

                                            so “he” is around but not done “bad things”, he just play around, let see what happen next as he usually can be spotted before attacks occur, so this is not an unusual pattern.

                                            sorry I don’t have the time and patience to do all the block chain check every day for fork. I usually do when someone report a fact of weird stuff or that I spot something weird while looking at the block list. a fork indicator on the side of a block indicating an orphan(with the lenght of it would be the ultimate). so fork can be spotted. blockchain.info have a nice explorer just for orphan [url=http://blockchain.info/orphaned-blocks]http://blockchain.info/orphaned-blocks[/url]

                                            note: orphan are not propagate so you need to be online on the broadcast to get them in your database

                                            EDIT: ATTACK STARTED around 57465 until now 57514 he keep the chain means time to July 28 at 2:14. (the chain means time is the lowest time that can be used to put a block in the chain) it’ s along run but if he keeps that until retarget and put it in retarget block he can put us in pretty high 114+41% diff. And then low hash rate and all related issues will follow
                                            EDIT2: attack stop at 57547 so no damage done, need to check if some block are orphan. but first fast scan seems to have no indication of that.

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