Three months on from the global WannaCry cyberattack Attack.Ransom , someone has withdrawn funds acquired when victims paid ransoms Attack.Ransom . Almost three months on from the WannaCry ransomware outbreak Attack.Ransom , those behind the global cyberattack Attack.Ransom have finally cashed out their ransom payments Attack.Ransom . The WannaCry epidemic hit Attack.Ransom organisations around the world in May , with the file-encrypting malware -- which used a leaked NSA exploit -- attacking Attack.Ransom Windows systems . It infected over 300,000 PCs and crippling systems across the Americas , Europe , Russia , and China . The UK 's National Health Service was particularly badly hit Attack.Ransom by the attack Attack.Ransom , with hospitals and doctor 's surgeries knocked offline , and some services not restored until days after the ransomware hit Attack.Ransom . WannaCry continued to claim victims even after the initial outbreak : June saw Honda forced to shut down a factory due to an infection and speed cameras in Victoria , Australia also fell victim to the ransomware . While the attack Attack.Ransom was certainly high profile , mistakes in the code meant many victims of WannaCry Attack.Ransom were able to successfully unlock systems without giving into the demands Attack.Ransom of hackers . A bot tracking ransom payments Attack.Ransom says only 338 victims paid Attack.Ransom the $ 300 bitcoin ransom demand Attack.Ransom - not exactly a large haul for an attack which infected hundreds of thousands of computers . In the months since the attack Attack.Ransom , the bitcoin wallets containing the money extorted Attack.Ransom by WannaCry were left untouched , but August 3 saw them suddenly start to be emptied . At the time of withdrawal , the value of the wallets totalled $ 140,000 thanks to changes in the valuation of bitcoin . Three separate withdrawals between 7.3 bitcoin ( $ 20,055 ) and 9.67 bitcoin ( $ 26,435 ) were made in the space of a minute at 4:10am BST , accounting for around half of the total value of the extorted funds . Five minutes later , three more withdrawals of between seven bitcoin ( $ 19.318 ) and 10 Bitcoin ( $ 27,514 ) were made in the space of another 60 seconds . Ten minutes later , a final withdrawal was made , emptying the remaining bitcoin from the WannaCry wallets . There 's no official confirmation of who carried out the attack , but both private cybersecurity firms and investigating government agencies have pointed to North Korea as the culprit . A month after WannaCry Attack.Ransom , companies around the world found themselves being hit Attack.Ransom by another fast-spreading cyberattack in the form of Petya , which like WannaCry is still causing issues for some of those affected . Unfortunately , the success of WannaCry and Petya infection rates means many cybercriminal groups are attempting to copy the worm-like features of these viruses for their own ends .

Ransomware authors are profiting from the rise of the cryptocurrency -- but it 's also bringing some unexpected problems for them and other dark web operators . The value of bitcoin has soared in recent days : at the one point the cryptocurrency was worth almost $ 19,000 before it dropped back to around $ 16,500 , where it has roughly remained since . It 's almost impossible to predict what will happen next . The price of bitcoin could rise again or it could crash -- but , for now at least , a single unit of the cryptocurrency is worth a significant amount of money . Bitcoin has become the popular payment method for ransomware over the last two years , as the digital currency provides cybercriminals with a means of collecting ransoms Attack.Ransom , while also making it difficult to get the ransom-collectors ' identities , thanks to the level of anonymity it offers . WannaCry Attack.Ransom , the biggest ransomware event of the year , for example , hit Attack.Ransom hundreds of thousands of PCs around the globe , encrypting files and demanding a payment Attack.Ransom of $ 300 in bitcoin for the safe return of what was stored on the machine . In this instance , the ransomware code itself was poorly written and the vast majority of victims were able to restore their systems without giving into the demands Attack.Ransom of the cyber-attackers . However , by the time those behind WannaCry Attack.Ransom had withdrawn funds from the associated Bitcoin wallets -- a full three months after the attack -- it meant the 338 payments Attack.Ransom victims had made were worth around $ 140,000 , which was an increase in value of just under $ 50,000 compared to when the majority of payments were made Attack.Ransom . If those behind WannaCry Attack.Ransom have held onto their illicit investment , they could now be sitting on over $ 1m of bitcoin . But the sudden spike in bitcoin could actually be problematic for some cybercriminals . Before the surge in value , 1 or 0.5 bitcoin was a common ransom demand Attack.Ransom , with the idea that if the fee was low enough -- back then the ransom value worked out at a few hundred dollars -- this would encourage the victim to pay up Attack.Ransom . Even as the value of bitcoin steadily rose during the summer , some attackers were still using the standard amounts of cryptocurrency as their ransom demand Attack.Ransom . For example , Magniber ransomware demanded a payment Attack.Ransom of 0.2 bitcoin ( $ 1,138 in mid-October ) , rising to 0.4 bitcoin ( $ 2,275 in mid-October ) if the payment wasn't received Attack.Ransom within five days . Two months later , 0.2 bitcoin is currently worth $ 3,312 while 0.4 bitcoin is up to $ 6,625 . Many forms of ransomware already ask for the payment Attack.Ransom of a specified amount of dollars to be made in bitcoin . While it pins hopes on victims being able to buy a specific amount of bitcoin and successfully transfer the payment -- which some criminal gangs get around by manning help desks providing advice on buying cryptocurrency -- it 's more likely to result in the victim paying up Attack.Ransom , especially if the figure is just a few hundred dollars . `` I imagine the volatility of bitcoin pricing has been an unexpected problem for cybercriminals . The average ransom demand Attack.Ransom has remained somewhere between $ 300 to $ 1000 , and normally the ransom note will specify a USD amount , '' Andy Norton , director of threat intelligence at Lastline , told ZDNet . It is n't just ransomware distributors who might be faced with the problem of valuing items in pure bitcoin : a Dark Web vendor -- whether they are selling malware , weapons , drugs , or any other illegal item -- might find that setting their price in pure bitcoin will quickly result in them pricing themselves out of the market . With bitcoin prices continuing to rise , sophisticated cybercriminal operators can likely react to it , altering prices on a day-to-day basis to ensure that they 're able to sustain their business . Criminals are trying out alternative pricing models for ransomware already . Some criminals already operate around the idea that they charge Attack.Ransom victims just enough so that they do n't see the ransom Attack.Ransom as too much to pay Attack.Ransom -- and that often depends on the country the victims are in . The Fatboy ransomware payment scheme charges Attack.Ransom victims in poorer countries less than those in richer ones . Meanwhile , those behind Scarab ransomware have started asking Attack.Ransom victims to suggest a payment amount Attack.Ransom for receiving the encryption key for their files .

Victims of one the newest - and most unusual - families of ransomware could now be able to recover their files without giving into the demands Attack.Ransom of criminals because decryption tools have been released for free . A GandCrab ransomware decryption tool has been released as part of the No More Ransom initiative , following a combined operation by Bitdefender , the Romanian Police , the Directorate for Investigating Organized Crime and Terrorism ( DIICOT ) and Europol . GandGrab first appeared in January and has already claimed over 53,000 victims around the world , making it what Europol describe as `` one of the most aggressive forms of ransomware so far this year '' costing Attack.Ransom each victim anything from a few hundred dollars to a few thousand . This variant of the file-locking malware is unusual in a number of ways : not only is it spread via the use of exploit kits - a tactic usually reserved for the likes of trojans and cryptocurrency miners - it is also the first form of ransomware to ask for payments Attack.Ransom in Dash . Most other forms of ransomware demand the ransom Attack.Ransom be paid Attack.Ransom in bitcoin or Monero . The spread of GandGrab has also been helped along by a cybercrime-as-a-service scheme which offers a toolkit for deploying the ransomware in exchange for wannabee crooks giving the original authors a cut of their profits . It 's unknown which specific cybercriminal operation is behind GandGrab . However , the ransomware is advertised on Russian hacking forums , with the authors explicitly instructing those who become a part of the partnership scheme not to target Russia or any other country in the Commonwealth of Independent States of former Soviet republics . But regardless of who might be distributing GandCrab , now victims do n't need to pay a ransom Attack.Ransom to those looking to cash in on it , because the decryption tool is available for free from the No More Ransom portal and from Bitdefender . `` Ransomware has become a billion-dollar cash cow for malware authors , and GandCrab is one of the highest bidders , '' said Catalin Cosoi , senior director of the investigation and forensics unit at Bitdefender . In order to help prevent falling victim to ransomware , Bitdefender recommends regularly back-up sensitive data and to be wary of suspicious email attachments and malicious links . Launched in 2016 , the No More Ransom Attack.Ransom scheme brings law enforcement and private industry together in the fight against cybercrime and has helped thousands of ransomware victims retrieve their encrypted files without lining the pockets of crooks . The portal is available in 29 languages and since its launch has has received over 1.6 million visitors from a total of 180 countries . The release of GandCrab decryption tools comes shortly after an operation involving Europol , the Belgian National Police and Kaspersky Lab led to the release of free decryption tools for Cryakl ransomware .