![]() While these findings do not indicate a definite link between Lazarus and WannaCry, we believe there are sufficient connections to warrant further investigation and will continue to share further details of our research as the case unfolds. (Source: Symantec, “ What You Need to Know about WannaCry Ransomware.”) This SSL implementation uses a specific sequence of 75 ciphers that, to date, have only been seen across Lazarus tools (including Contopee and Brambul) and WannaCry variants. Symantec has determined that this shared code is a form of SSL. Shared code: As tweeted by Google’s Neel Mehta, there is some shared code between known Lazarus tools and the WannaCry ransomware.These earlier variants of WannaCry did not have the ability to spread via SMB. The Lazarus tools could potentially have been used as method of propagating WannaCry, but this is unconfirmed. Co-occurrence of known Lazarus tools and WannaCry ransomware: Symantec identified the presence of tools exclusively used by Lazarus on machines also infected with earlier versions of WannaCry. ![]() Source: Securelist, “ WannaCry and Lazarus Group-the Missing Link ?” Symantec conducted their own analysis and agrees: ![]() Kaspersky provided the screenshot below that demonstrates the similarity between the two ransomware samples. And the Lazarus Group is largely believed to be operating under the control of the North Korean government. Contopee has been used extensively by a hacker group known as the Lazarus Group. The security research community immediately jumped on the clues he provided and determined that an earlier version of WannaCry, from February 2015, shared some code with a backdoor program known as Contopee. On Monday, Google Security Researcher Neel Mehta ( posted this tweet along with the hashtag #WannaCryptAttribution. Law enforcement and security researchers have been on the case since Friday and it appears they are making some progress. However, due to the sheer amount of damage done and resulting and continuing chaos from the attack, it’s still important to figure out who is behind it all. Okay, so we’ve established that whoever did this isn’t getting rich. Or you just check out this handy, real-time graph prepared by Elliptic: Anyone can view all transactions and check out how many people have actually paid the ransom so far. But apparently, they’re not.Īnalysis of the three bitcoin addresses hard-coded into the ransomware indicates that, at the time of writing, a total of 35.47151311 bitcoin ($61,614.02 USD) had been paid in 235 separate transactions. It sounds like a real criminal moneymaker, doesn’t it? With current reports suggesting outbreaks in more than 150 countries and possibly 300,000+ computers infected, at roughly $300 a ransom, you’d think the perpetrators of this global heist would be making off like bandits. These tick-tock deadlines are used, of course, to create a sense of urgency for victims to pay. If not paid within three days, the demand doubles if not paid within seven days, WannaCry threatens to delete the files permanently. Once encryption is complete, the user receives a taunting message demanding that a roughly $300 USD bitcoin ransom be paid to decrypt and release the files. WannaCry infects unpatched Windows-based computers and immediately encrypts 176 different file types, appending. The worldwide WannaCry ransomware attack has been making headlines since Friday afternoon when it began running rampant at hospitals in the UK, causing manufacturing plant shut downs across Europe, and propagating and encrypting everything it could get its hands on, from ATMs to marketing display panels.
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