Thursday, September 3, 2015

Thank you RedLED!

I'd very much like to thank RedLED for its support to our cause. They helped us pay hardware and computers to develop the tools to recover ransomware victim's files without payment. RedLED is an advertising company, it has nothing to do with computers, though they do rely on them to administrate their LED billboards. 

We have had some really good advances and we'll notify over E-mail those who we can help now.

Once again: Thank you very much for the donations!

Wednesday, April 22, 2015

Hit by Coinvault?

Kaspersky Labs devised a tool to recover files without charge. Click here.

It's good to know that for every gang of cybercriminals out there, there's good people willing to help you out.


Keep in tune! there are more news yet to come! The fight goes on!

Wednesday, June 11, 2014

Update: CryptoDefense rebranded to CryptoWall

After the fortune they reaped with CryptoDefense, not only did the crooks buy more computers from a botnet. They also rebranded it to 'CryptoWall' and made considerable changes to its website:

+ Multilanguage Support
+ Slight color changes in their website. Now it looks nicer, I confess.
+ Support (You can message them in case you need help) 

- Their English sucks, so I haven't noticed any improvement in this area.

* Ransomware notes are now named as:
What does it mean to 'buy computers'?

Most computers that were hit by this nasty ransomware had been previosuly infected by a botnet. A botnet is a network of infected computers that can be spied and controlled by their masters (those who own the botnet network). 

These computer programs are usually used to gather users' credentials to home-banking and to perform DDoS attacks on websites, etc. (Yes, you can pay these crooks to bring down your competition's website).

One of their businesses consists of selling a certain number of infected computers so that the buyers can install whatever they want in them. In this case: CryptoDefense/CryptoWall. It's not a big issue for them to sell these computers because most of them are not used for homebanking anyway. So, they remain rather useless. Now, thanks to ransomware, they no longer have to wait until they get a bank account. They just encrypt their files and get paid via Bitcoins.

Is there a chance to get my files without payment?

Maybe, I can't tell. The reason why the first 'lucky' victims that were hit by the earliest version of CryptoDefense could recover their files was because its earliest version had a faulty implementation of CryptoAPI (needed to encrypt your files). 

If someone gets access to their hidden servers that provide the decryption tool and verifies the payments, all keys might be released.

Will they go to jail?

I very much hope so. CryptoLocker author has been identified and charges were pushed against him. CryptoLocker is way smarter than this Kiddo ransomware and the author still got caught. So, let's just be patient.

Is this information useful to you? Write me an email or consider a small donation. Any amount will be greatly appreciated!

If you have the virus samples, you can send them. (Place them inside a .zip / .rar file) and use 'infected' as password.

Sunday, April 13, 2014

It's been awhile

I am glad to announce that we were featured on PCWorld, one of the greatest computer magazines in the world.

My old computer screen is dead, and I am using my phone to reply emails and update this blog. That's why I can't always reply quickly and why I ask for donations. Anyway...

Cryptolocker and CryptoDefense have proven to be a highly profitable business warped around the anonymity of cryptocurrencies and the TOR network. You can expect more of this resurgent type of malware to sweep the Internet and spread as wildfire and, as you are reading this article, someone is writing the next cryptovirus that will enter the scene tomorrow; and I am not joking. The only fireproof measure against these nasty threats is backup using non-rewritable media such as DVD-R's and Blueray disks. Cloud storage such as Dropbox seemed safe at first glance but vĂ­ctims also reported they have lost their files there.

To make matters even worse, some victims also reported being hit by two cryptoviruses. This means that they had to pay twice to get their files back. Can you imagine what will happen when more of these viruses emerge in the near future? Go figure...

There is little (to say the most) Antivirus software can do once your files have been encrypted simply because removing the malware will not return your data to its original form unless you have the key. So, better be prepared than sorry: Backup tour files.

I'll update this blog soon... Keep in tune!

Friday, March 28, 2014

You infected the wrong fool!

Yeah, I recovered all my files. ALL and EACH one of them without paying a PENNY. If that wasn't enough, we are also helping victims to recover their files without payment. 

Dear CryptoDefense Authors, if you are reading this: SCREW YOU. Your awful script kiddie skills led our team of true experts to THWART your evil plans, even though you used state-of-the-art RSA encryption. What a bunch of fools! that's like loosing a football match having Lionel Messi, Cristiano Ronaldo and Xavi on your team.

Next step is to report all your domain names (that you lamely use to infect more and more victims).

Now, if you are a victim, feel free to write us at

Tuesday, March 25, 2014

CryptoDefense: Keys pair stored on disk!

This little detail slipped through their fingers... TOO LATE!

(I actually hid this post when I understood that it might alert the crooks. But SYMANTEC did!)

This is the exact path where your keys are:

Windows XP
C:\Documents and Settings\<USERNAME>\Application Data\Microsoft\Crypto\RSA\S-1-5-2...
Windows 7
(X stands for your hard-disk letter, which is commonly C in most computers) 

HEXCMP highlights in red the differences whereas identical bytes remain white.
TCP/IP dumped data is identical to the key found on Disk. 

The private key is encrypted via DPAPI (Data Protection API). There are many RSA keys in that folder though, but you can still find them by sorting these files by date. If you don't remember the date you got infected, see your screenshot at the crook's webpage or search for the oldest HOW_DECRYPT.TXT file in your system.

I'll update this blog soon!