Decrypting Wallet - What if there was a trojan? Could i quickly send coin to pap

[philip2000uk]

If there was a trojan hiding on my computer and i decided to decrypt the wallet.  Would I have enough time to send the bitcoins to a paper wallet?

[philip2000uk]

If there was a trojan hiding on my computer and i decided to decrypt the wallet.  Would I have enough time to send the bitcoins to a paper wallet?

Use Armory's offline transaction signing feature and don't worry about it.

I'm unsure of what that is, I need to research more I just have the wallet already when i was a noob.  But quickly encrypted and backed it up on HDD.  So I guess I could put it onto a clean laptop then decrypt and generate paper ones.

Thanks

[sushi]

if your wallet was compromised, make a new wallet and transfer your BTC right away, then put it on the paper

[philip2000uk]

if your wallet was compromised, make a new wallet and transfer your BTC right away, then put it on the paper

That's good so at least I will have time, like maybe 10 minutes   Anyway, I'll make sure that my computer stays clean and transfer my backup wallet to a new laptop one day.  Another thing.  my Wallet.dat says, MPEG4 movie file, which is a bit strange.  I'm guessing because I don't have any program really that reads .dat?

[DeathAndTaxes]

That's good so at least I will have time, like maybe 10 minutes  Anyway, I'll make sure that my computer stays clean and transfer my backup wallet to a new laptop one day.  Another thing.  my Wallet.dat says, MPEG4 movie file, which is a bit strange.  I'm guessing because I don't have any program really that reads .dat?

Probably not.  Most trojans are designed to operate in near realtime.  At best this results in a race condition, you and trojan transmit a tx for the same "coins", a double spend and it becomes a race to see which ones ends up in the block (the other one ends up invalid).  I don't know for sure but to avoid a race condition it would be pretty trivial for a trojan to disable/block your outbound transaction to ensure it always wins so you might be looking at a guaranteed loss.

If you suspect your computer is infected, then don't use it.  Open the wallet.dat on a different computer.
If you suspect the password for your wallet has been compromised.  Create a new wallet on a secure computer with a new unique strong password (or temporarily an offline/paper wallet) and transfer the full balance of your old wallet to the new wallet.

[Ploo]

If the trojan was written to target the bitcoin-qt wallet then it'll be listening out for the decryption event by some means. As soon as it has your password it'll clear out your wallet - and it'll do it faster than you think you could.

[philip2000uk]

That's good so at least I will have time, like maybe 10 minutes  Anyway, I'll make sure that my computer stays clean and transfer my backup wallet to a new laptop one day.  Another thing.  my Wallet.dat says, MPEG4 movie file, which is a bit strange.  I'm guessing because I don't have any program really that reads .dat?

Probably not.  Most trojans are designed to operate in near realtime.  At best this results in a race condition, you and trojan transmit a tx for the same "coins", a double spend and it becomes a race to see which ones ends up in the block (the other one ends up invalid).  I don't know for sure but to avoid a race condition it would be pretty trivial for a trojan to disable/block your outbound transaction to ensure it always wins so you might be looking at a guaranteed loss.

If you suspect your computer is infected, then don't use it.  Open the wallet.dat on a different computer.
If you suspect the password for your wallet has been compromised.  Create a new walle with a new password (or temporarily an offfline/paper wallet) and transfer the full balance of your old wallet to the new wallet.

I'll do that then one day as soon as I get enough knowledge to keep safe.  I will buy a clean laptop.  It's just a what if.  I don't visit dodgy websites...I'll keep reading up on it.

[philip2000uk]

If the trojan was written to target the bitcoin-qt wallet then it'll be listening out for the decryption event by some means. As soon as it has your password it'll clear out your wallet - and it'll do it faster than you think you could.

I see, i'll try and be careful