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Topic: [TRC] [DISCLOSURE] Terracoin Difficulty Collapse Exploit - page 2. (Read 10168 times)

hero member
Activity: 686
Merit: 500
Whoa, there are a lot of cats in this wall.
i personally moved my miners away from p2pool for now, it really looks broken, nearly every found block gets orphaned and stale rate is incredible, i gave a try to multipool.

I'd suggest you check your own p2pool stats (& graphs) page and maybe logs, it can still be coming from my setup.

i'll check my stats tomorrow and then decide if i try solomining or not.

I'm having a good bit of success solo mining.  Sure I'm getting some orphans, but that's to be expected. 
full member
Activity: 148
Merit: 100
i personally moved my miners away from p2pool for now, it really looks broken, nearly every found block gets orphaned and stale rate is incredible, i gave a try to multipool.

I'd suggest you check your own p2pool stats (& graphs) page and maybe logs, it can still be coming from my setup.

i'll check my stats tomorrow and then decide if i try solomining or not.
hero member
Activity: 686
Merit: 500
Whoa, there are a lot of cats in this wall.
I've moved 6GH/s to TRC.  We need an "Altcoin Rapid Response Team"  (ARRT) to fight off jackasses like this.   
legendary
Activity: 1862
Merit: 1011
Reverse engineer from time to time
I read the description of OP at least 50 times, but I dun' get it.

Quote
The way the attack works is that a miner collusion
I assume you mean that you need more than one node for this?

Quote
attempts to artificially inflates the time span of each retarget section
And this "group" of miners does this how? Inflation means to increase, increase means it will take longer than 2 minutes to create a block. Not sure how you'd do it. It's possible due to less nodes?

Quote
When the collusion gains momentum theoretically for terracoin I think the difficulty will collapse and block spacing drops close to 0
And again, how do you prevent people from finding blocks? Bear with me, I am thinking as I type, so basically miners will increase the difficulty, then stop till the retarget code decides it needs to go down? And when it goes down it gets exploited by the miners with the most hashpower again?
hero member
Activity: 631
Merit: 501
Ok... I redirected my ~7Gh into TRC P2Pool:
http://www.wmikrut.com:9322/static/

That's all I have.

legendary
Activity: 1484
Merit: 1026
In Cryptocoins I Trust
Dev said on Github that he won't play cat and mouse game with the guy who's exploiting terracoin and if people don't mine the attacker will win.

That's reassuring...
legendary
Activity: 2072
Merit: 1001
Dev said on Github that he won't play cat and mouse game with the guy who's exploiting terracoin and if people don't mine the attacker will win.

i guess this is how an alt coin dies then.
seems like there is two too many right now anyway.

it takes 30 of me to equal one avalon. if the guy has 3. we are talking 100 of me just to out do him by a tiny bit.
i doubt that is going to happen.
hero member
Activity: 631
Merit: 501
So how much hash power are we talking here?
I will gladly put my 7Gh into solo mining if that will help... but what's the bigger picture needed to stop this guy?
legendary
Activity: 2772
Merit: 1028
Duelbits.com
Dev said on Github that he won't play cat and mouse game with the guy who's exploiting terracoin and if people don't mine the attacker will win.
legendary
Activity: 2072
Merit: 1001
so at this point in time trc is terribly broken and i would never mine it because someone is ripping me off?
that about sums it up?
hero member
Activity: 631
Merit: 501
I really don't know at this point... I see the guy churning out blocks so fast -- it seems impossible to keep up.
The difficulty drops to 565... then in seconds shoots back up to 32,000+

In the mean time -- he's turning out blocks in the difficulty range of < 35 at the rate of 1 every couple minutes.
TBH... I am surprised the exchanges haven't suspended TRC trading yet.
full member
Activity: 202
Merit: 100
I am mining for few hours no blocks found, with 20Ghash t should be.. at least some... dunno if something is wrong or just bad luck.
hero member
Activity: 631
Merit: 501
Looks like (according to P2Pool) -- the blocks seem to all be coming from:
216.69.248.251,9323



if blocks were generated with p2pool we would see two distinct things:

- p2pool author pubkey / transaction in outputs

- multiple outputs, to addresses belonging to share owners

i doubt he uses p2pool (how would he alter remote existing p2pool installations by the way)

Sorry -- I didn't mean to imply they are using P2Pool.
I meant when I use explorer in P2Pool on these blocks -- they all appear to be coming from the same address.
full member
Activity: 148
Merit: 100
what's kinda funny, is that those attacks could come from a pool where miners willing to help point theirs rigs Smiley
hero member
Activity: 631
Merit: 501
Looks like (according to P2Pool) -- the blocks seem to all be coming from:
216.69.248.251,9323



Sorry wmikrut.  I was wrong in the other thread. 

No need to apologize!
I appreciate the response.
full member
Activity: 148
Merit: 100
Looks like (according to P2Pool) -- the blocks seem to all be coming from:
216.69.248.251,9323



if blocks were generated with p2pool we would see two distinct things:

- p2pool author pubkey / transaction in outputs

- multiple outputs, to addresses belonging to share owners

i doubt he uses p2pool (how would he alter remote existing p2pool installations by the way)
hero member
Activity: 686
Merit: 500
Whoa, there are a lot of cats in this wall.
Looks like (according to P2Pool) -- the blocks seem to all be coming from:
216.69.248.251,9323



Sorry wmikrut.  I was wrong in the other thread. 
hero member
Activity: 631
Merit: 501
Looks like (according to P2Pool) -- the blocks seem to all be coming from:
216.69.248.251,9323

full member
Activity: 148
Merit: 100
And there they are. Blocks 103018 at 18:52 through 103036 at 19:11. Actual clock is only 18:57. He's generating blocks ahead of time, and into the future.

this is supported by the protocol, but indeed, the averaging function should proceed those in another way i guess.
I reported the first block with a future ntime to devs, asking how would this affect the diff (magically he first used +15 mins, that's how i saw hit while looking at how frequent blocks were mined).

The real problem here i guess, is that that guy is able to mine multiple blocks one after the other, obviously this finally alters the averaged data and triggers the diff increase.
legendary
Activity: 3878
Merit: 1193
And there they are. Blocks 103018 at 18:52 through 103036 at 19:11. Actual clock is only 18:57. He's generating blocks ahead of time, and into the future.
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