Lost Bitcoin

[Heathcliff]

Help to deal with the problem: I'd like to understand what happened - theft BTC or system error.
On the purse was the amount 12,89 BTC. When opening the wallet has failed, in which the wallet started synchronizing with the first block. After synchronization is complete, the balance of the purse 0,0009 BTC, there are two transactions, which I did not commit, to unknown address 1MbDKqngwKQ49TowToHGc9nZBRt99CqK8т on the amount 12.8 BTC and 0,098 BTC.
How to determine: whether this address is the address of my wallet and not visible due to a system error, or the theft occurred, and this address belongs to a thief?
If this is a bug, what can I do to return BTC?

[cr1776]

Do you have a backup of the wallet or private keys? Then you can see if the address was there.

Can you verify the address? It does not appear valid - and blockexplorer.com and blockchain.info agree it is not valid.

[Nikinger]

https://blockchain.info/address/1MbDKqngwKQ49TowToHGc9nZBRt99CqK8t this is valid. If 1MbDk... is the unknown address you don't own, then you cannot do anything other than finding out how the hack might happenen.

[GhanaGamboy]

to unknown address 1MbDKqngwKQ49TowToHGc9nZBRt99CqK8т

At the end of the address is not allowed character for bitcoin address.

You might start bitcoin-qt with -rescan parameter to check for right ballance again

[byt411]

to unknown address 1MbDKqngwKQ49TowToHGc9nZBRt99CqK8т

At the end of the address is not allowed character for bitcoin address.

You might start bitcoin-qt with -rescan parameter to check for right ballance again

Correct. And you might as well give us the txid, so that we can check.

[Heathcliff]

Sorry, address is 1MbDKqngwKQ49TowToHGc9nZBRt99CqK8t
ID af27d89fe3aacb6ac0721571ab1c3fc432696094d2984de35b949c72b7b8c135-000

[byt411]

Sorry, address is 1MbDKqngwKQ49TowToHGc9nZBRt99CqK8t
ID af27d89fe3aacb6ac0721571ab1c3fc432696094d2984de35b949c72b7b8c135-000

Which is your address?

[Heathcliff]

I dont understand how to find my address...
Unknown address is 1MbDKqngwKQ49TowToHGc9nZBRt99CqK8t
Start with parametr -rescan: without result, balance 0 BTC

[byt411]

My address is 1LWt1egbCEtjpKebNJLWzw2ztHfzo7qGfo
Unknown address is 1MbDKqngwKQ49TowToHGc9nZBRt99CqK8t
Start with parametr -rescan: without result, balance 0 BTC

You only had 3.47024406BTC in 1LWt1egbCEtjpKebNJLWzw2ztHfzo7qGfo.
Are these addresses also yours?
1ByxEhE82qZxABhtsaj3yDJoJ26LV1YNF5
1ErU6w2UkWrnWLt91YRzGTgFmBAC3LZ3EY
1LN9Zi1nWpNDnRHyJ2UacZdCtiVp3n2UrG

[Heathcliff]

http://s019.radikal.ru/i616/1405/2b/e60dc9ba7aeb.png
I'm confused addresses... How can I determine my address?

[byt411]

I'm confused addresses... How can I determine my address?

Go to the third tab, or "Receiving" tab, and post a screenshot.

[Heathcliff]

http://s019.radikal.ru/i641/1405/34/1d0ac89b8e7f.png

[byt411]

Did you ever delete your wallet.dat or did you reinstall Bitcoin Core?

[Heathcliff]

wallet.dat - from backup
Yes, Bitcoin core - new, v0.9.1.0-g026a939-beta (64-bit)

[byt411]

wallet.dat - from backup
Yes, Bitcoin core - new, v0.9.1.0-g026a939-beta (64-bit)

Try importing your wallet.dat again...
You currently don't control 1MbDKqngwKQ49TowToHGc9nZBRt99CqK8t.

[Heathcliff]

I have 4  backups from different dates. I tried another backup from other date... Result (transactions status - conflicted, and no mine):
http://s020.radikal.ru/i706/1405/cb/c4f69e284512.png
Balance - 0, starting with -rescan key

[Zeta0S]

So did you got your funds back?

[byt411]

So did you got your funds back?

No he hasn't. I'm trying to help him.

Heathcliff, try all the backups and see if you have 1MbDKqngwKQ49TowToHGc9nZBRt99CqK8t in them.

[Heathcliff]

So did you got your funds back?

No he hasn't. I'm trying to help him.

Heathcliff, try all the backups and see if you have 1MbDKqngwKQ49TowToHGc9nZBRt99CqK8t in them.

One moment... Now I will try

[Heathcliff]

Tested all the backup, the result is the same. The address does not appear anywhere
It seems to me that the problem arose after upgrading the bitcoin-core from version 0.9.0 to version 0.9.1. What do you think, does it make sense to try to download the older version?