Quote from: LifeisGreat88088 on December 01, 2014, 09:47:17 AM

Quote from: Plutonium on December 01, 2014, 09:44:30 AM

Quote from: LifeisGreat88088 on December 01, 2014, 09:37:36 AM

I sent 0.0005btc from A btc address to my B btc address.

However, the blockchian.info wallet says the B wallet contains transactions which may be double spends.

And then, the 0.0005BTC was transfered to one new address not belong to me.

I tried to send another 0.02BTC from A to B, the same result.

The funds have not been sent back yet.

My funds have been taken?

Are you sending these transactions, or better yet, are you sending to addresses that you own?
It's probable that someone has gotten a hold of your private key and is just transferring your BTC to their wallet every time you make a transaction.
If this is the case, then yes, you've lost your coins.

I imported the private key of B in mastercoin online wallet(https://www.omniwallet.org/) , is that web a trap?

Huh

Why did you use that wallet and not blockchain are a well known wallet?
I personally can't see any reports on it stealing users funds, but yet again I've never heard of the wallet until now