Easiest way to Pay in Bitcoin for Cryptolocker Virus in the UK

First of all it should be clear that if you have been infected by the Cryptolocker Virus you are being scammed and you should try to avoid paying the ransom. That said the encrypted files cannot be decrypted without paying cleverly leaving some people with no choice. This is a guide for those left without a choice who wish to pay the ransom using Bitcoins.

Beware it is always possible that paying the ransom may not work - this is very rare, but if it happens the payment cannot be reversed and your files will be lost. In other cases 99% of files are recovered but a handful get corrupted.

All victims should call action fraud on 0300 123 2040. If the bitcoin payment is not done before the time runs out you will not recover your encrypted files.

I should also disclose that I am one of the operators of Quickbitcoin.


What do you need before following this tutorial?

• online banking (or another way to make a bank transfer e.g. telephone banking or in branch)
• an infected computer with files you need to decrypt
• Ideally plenty of time left on the timer - over 6 hours is safest, although it may work with around 1 hour if us folks at Quickbitcoin are online.

Most of you will be presented with a screen similar to this:

Click next and you will get this screen:

Choose Bitcoin from the dropdown. You will be asked to send 2BTC (bitcoins) to an address in the following format:

• 14sYqe98iFnbav4LS1JCDAQkLgWEtUNQGm

Make sure you use the address you have been asked to send to. The address above is not the one you should send to. Please do not purchase bitcoins to be sent directly to the fraudsters Quickbitcoin will have no way of knowing if they are sending coins after the deadline has past and there would be no way of recovering the payment.

The first thing you need to do is set up a bitcoin wallet. Go to: https://blockchain.info/wallet/new and register an account. Once you have logged into your account there should be a wallet address displayed on your account page:

The long code is the address of your new bitcoin wallet. You now need to purchase 2 Bitcoins so you can send them to the fraudsters. Keep this page open as you will need to return to it later in the process. Also be aware that if you lose your password there is no way to recover it.


Go to https://quickbitcoin.co.uk/ - They will sell you bitcoins in return for a UK bank transfer.

In the field saying 'Your wallet address' enter the bitcoin address you just set up.

On the next page you need to fill in your details. This includes name, email, account number and sort code. The bank details are required in case something goes wrong and Quickbitcoins need to refund you. Once you have filled that out you will be presented with the confirmation screen below:

Click Confirm and the next screen instructs you to make the payment through your online banking

You should now log into your online banking (or call telephone banking, or go into a branch) and make the payment as detailed in the instructions page. My example reference here is QGNUODJ - please make sure you use your own as presented on the website else the process can be delayed.

Once you have made the payment click Payment Sent and the order will change to 'processing'.

Quickbitcoin operates in both London and Vancouver time zones. This means that normally between the hours of 9am and 2am UK time the transaction will be processed within 10 minutes. It is possible however for them to take up to 6 hours. If you buy bitcoins through Quickbitcoin and you miss the deadline they are happy to refund the payment as long as you can return the bitcoins. Refunds normally take 24h to process.


Once Quickbitcoin have sent you the bitcoins you should receive an email with a link to the transaction ID to show they have paid you. This is the same type of ID (but a different one) to the ID you need to send to Cryptolocker. Now that you have the bitcoins you should make a payment from your blockchain.info wallet to the address Cryptolocker is asking you to pay to. If you are unable to send you may need to wait a little for another confirmation (approx 10 minutes / confirmation).

Go back to the blockchain.info wallet you set up earlier and make a payment:

In the 'To' field enter the wallet address Cryptolocker asked you to pay to. This can be found on the window shown by the virus.

Once you have sent the payment search for their address in the search box in the top right corner of blockchain.info:

This will take you to a page like the following:

Under the 'Transactions' area you should see a single transaction. On the left it shows the wallet it came from (your wallet), and on the right the wallet it went to (Cryptolocker waller). Above that is a long ID. This is the transaction ID:

• f3b5e75eb73ea45ba170f7a054a3bcca2af9b370d3527f6175ee321fab4477e5

Remember to get your transaction ID, not just the one I've shown above.

Most of the time you will only see one transaction. If multiple transactions are shown then you need to use the one which was paid from your blockchain wallet to the address Cryptolocker provided and use the ID from that transaction. Just search through the transactions for your wallet address and it should match up.

Now all you have to do is enter that transaction ID into the Cryptolocker virus window. Once you do that you will be informed that the transaction is pending manual confirmation from the hackers. During this time the timer will stop and a few hours later you files should start being decrypted.


I really hope this tutorial has been helpful to you and that you managed to recover your files. This virus has given a lot of people very bad introduction to Bitcoin which is a great new technology. To date, and to my knowledge, there are now 2 london pubs accepting bitcoin as well as a range of online shops. Bitcoin as a currency has the advantage over traditional currencies that the banks are unable to levy charges on it. I won't cover all the advantages here, but I hope the experience with the virus has not put you off completely. After all, we've all been ripped off in £ and $ before and yet continue to use them.

If you have any questions and need help please leave a comment below, or email Quickbitcoin at info@quickbitcoin.co.uk

How to play .m3u8 video files

.m3u8 files are effectively playlists for video content designed to be played on a mobile device. They also allow seamless switching between high and low resolution video files for when your 3G connection speed varies.

The easiest way to play m3u8 files is to open them on a browser on your iphone or android device. It is also possible to play them through safari using the following html:

<html>
  <video src="http://yourserver.com/playlist.m3u8"></video>
</html>

Either way you have to serve the video over http using a web server. You cannot simply drag it into your browser.

Why password security requirements hand the advantage to the hackers!

Most of you will have come across a variation of this message at one point in your life:

"The password you entered doesn't meet the minimum security requirements."

Every 3 months the security policy on my work email forces me to change my password. This is understandable, but it can't be the same password as any previous passwords you have had, it has to have 8 characters or more including lower case, upper case, punctuation and at least 2 numbers

A simple password to remember could be:
'the cat walked down the road and sat down'
This is a 41 character password which would take hackers years and year to break even though it is so simple for the human mind to remember.

Of course this would not pass the security policy so this needs to be changed to:
'The cat walked d0wn the r0ad and sat down!'
This is now impossible to remember so the user has two choices:

Either write the password down somewhere totally insecure.
Or make an easier password:
'passw0rd1!'

This password is only 9 characters and passes the security policy tests without a problem. That said according to https://howsecureismypassword.net/ it would take 344 days to break this password whereas the 41 character password would take 479,245,873,413,199,200,000,000,000,000,000,000,000,000,000,000,000 years

Obviously I have no idea how to say that number out loud but it's billions of times more secure.

This is a cry for help to all systems administrators: Get rid of these ridiculous security policies. If you require a certain length password that is fine, but the rest of the policies at utter nonsense.

Please share this post if password policies have **** *** *** (annoyed you).

How to buy bitcoins in the UK

Four months ago I started a website called QuickBitcoin which allows users to buy bitcoin in the uk. Using the UK's faster payments system we are able to reduce transaction times down to an average of only 10 minutes.

Running the site has not come without it's share of problems. Unfortunately accepting paypal or other reversible payments system simply doesn't work as scammers can pose as customers and initiate chargebacks as soon as they have the Bitcoins. Currently Paypal always sides with the buyers as their dispute staff have not been trained to inspect the Blockchain for evidence of a transaction.

This means that the only forms of payment we are able to accept are those which are much harder to reverse, therefore removing our risk, but also removing all the security layers from our customers. How are customers expected to blindly send us a bank transfer without knowing if or when they will receive their coins?

Building this trust is a slow process. We are as open as possible about who we are and how we operate, but often receive questions about how they can trust us. I guess it all comes down to reputation. Getting that first buyer in took a long time, and now there is a steady flow of customers, but most are still a little skeptical.

You can't really blame people for being skeptical what with all the bad press that Bitcoin has had. I for one am convinced that Bitcoins or another similar currency have a large role to play in our future.

3D Printer more Reliable than 2 Dimensional Counterpart!

Today I'd like to share a frustration I've been having and I'd be interested to know if anyone else is having a similar experience:

My 3D printer is currently churning away for about 20h a day. It costs around £500 and hums away in the corner and churns out my orders in top quality PLA. Current reliability is somewhere around 99.9%.

When I come to posting the prints to customers I print off postage labels with my 2D printer. The printer is around £100, and only 2 months old and prints about 3-4 pages a day. Every time I print there is a paper jam and I have to restart the printer after every single page. Current reliability rate is around 1-2%.

Oh the irony! I guess I'll be buying a new 2D printer then... Anyone else got this issue?

Botqueue is amazing at queueing reprap prints and managing botfarms!

A while ago I posted about BFQ - my design for a Bot Farm Queue to manage my printers for me:
http://hughht5.blogspot.co.uk/2013/01/how-to-control-multiple-3d-printers-bfq.html

graphmastur kindly told me about Botqueue.com which is very similar to the design I proposed and is now very reliable. The open source software is being worked on almost everyday by Zack Hoeken and other commiters and any bugs you raise are quickly sorted out.

I have been using botqueue for probably 99% of my prints since mid february and have had almost no issues with it. The only time I haven't used it was when I tried to print a 100MB STL file of a statue which was too big to upload to botqueue.com

As you can see on their stats page I am their biggest user with my trusty printrbot taking the lead:
http://www.botqueue.com/stats
I am about to add 4 more printers to botqueue which may increase my lead, but competition aside people really should start using it more. Its a great tool once your printers are set up perfectly and just work every time.

The printing process is now much simpler. I can upload either an STL file or a gcode file to my botqueue account. If I upload an STL it will be sliced with my default settings. When a printer becomes available the next job on the queue is downloaded and the printer starts again.

I've just persuaded a friend to start using Botqueue as he normally prepares files in his bedroom then walks downstairs with an SD card to start the prints in his garage. With a simple webcam (which Botqueue supports) he can now start prints from his room and watch on the webcam if anything goes wrong.

Nozzle Jam

My Printrbot has been chugging away quietly printing products in the corner and until last weekend it hadn't had any issues for months. Then some of my printer suddenly stopped pushing enough filament through and the quality degraded.

It came at a good time for me as the prints are still usable, but not good enough to sell and I have therefore had time to print the parts for my next few printers.

As I started investigating I tried all sorts including changing the hobbed bolt but none of it worked. It was when I couldn't push the filament through by hand that I realised the ubis hotend was jammed so I simply took the nozzle out, put the temperature up to 230C and extruded about 50cm of clear pla filament through. It started out being full of bits of what I assume was black ABS in it although I'm not sure. As I kept extruding the extrusion became more and more clear. I then replaced the nozzle and it was easy to push through by hand so I put a print on.

It's been perfect ever since!!