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The Hacker News - Cybersecurity News and Analysis: WannaCry Ransomware

French Police Seize 6 Tor Relay Servers in WannaCry Investigation

French Police Seize 6 Tor Relay Servers in WannaCry Investigation

June 11, 2017Mohit Kumar
WannaCry , the biggest ransomware attack in the history, gained prominence very rapidly in the media globally after the ransomware infected more than 300,000 computers in over 150 countries within just 72 hours. Governments, Intelligence agencies and law enforcement around the world have already started their investigations and are working closely with affected companies to track down hackers responsible for the global cyber attack launched on Friday, 12th May. Some researchers traced back WannaCry to a state-sponsored hacking group in North Korea, while other believed the perpetrators might be Chinese . If you have been following WannaCry coverage on The Hacker News, you should be aware of that the WannaCry ransomware uses Tor hidden service to communicate with its command-and-control server. Just yesterday, we came to know that French authorities had seized at least 6 Tor's entry guard node servers, hosted on France-based hosting providers, just two days after the o
Warning! Hackers Started Using "SambaCry Flaw" to Hack Linux Systems

Warning! Hackers Started Using "SambaCry Flaw" to Hack Linux Systems

June 10, 2017Swati Khandelwal
Remember SambaCry ? Two weeks ago we reported about a 7-year-old critical remote code execution vulnerability in Samba networking software (re-implementation of SMB networking protocol) that allows a remote hacker to take full control of a vulnerable Linux and Unix machines. To know more about the SambaCry vulnerability (CVE-2017-7494) and how it works, you can read our previous article . At that time, nearly 485,000 Samba-enabled computers were found to be exposed on the Internet, and researchers predicted that the SambaCry-based attacks also have potential to spread just like WannaCry ransomware widely. The prediction came out to be quite accurate, as honeypots set up by the team of researchers from Kaspersky Lab have captured a malware campaign that is exploiting SambaCry vulnerability to infect Linux computers with cryptocurrency mining software. Another security researcher, Omri Ben Bassat‏, independently discovered  the same campaign and named it "EternalMiner
WannaCry Coding Mistakes Can Help Files Recovery Even After Infection

WannaCry Coding Mistakes Can Help Files Recovery Even After Infection

June 02, 2017Swati Khandelwal
Last month  WannaCry ransomware  hit more than 300,000 PCs across the world within just 72 hours by using its self-spreading capabilities to infect vulnerable Windows PCs, particularly those using vulnerable versions of the OS, within the same network. But that doesn't mean WannaCry was a high-quality piece of ransomware. Security researchers have recently discovered some programming errors in the code of the WannaCrypt ransomware worm that might allow victims to restore their locked files without paying for any decryption key. After deeply analysing the WannaCry code, security company at Kaspersky Lab found that the ransomware was full of mistakes that could allow some of its victims to restore their files with publicly available free recovery tools or even with simple commands. Anton Ivanov, senior malware analyst at Kaspersky Lab, along with colleagues Fedor Sinitsyn and Orkhan Mamedov, detailed three critical errors made by WannaCry developers that could allow sysadmi
Linguistic Analysis Suggests WannaCry Hackers Could be From Southern China

Linguistic Analysis Suggests WannaCry Hackers Could be From Southern China

May 29, 2017Wang Wei
It's been almost four weeks since the outcry of WannaCry ransomware , but the hackers behind the self-spread ransomware threat have not been identified yet. However, two weeks ago researchers at Google, Kaspersky Lab, Intezer and Symantec linked WannaCry to 'Lazarus Group,' a state-sponsored hacking group believed to work for the North Korean government. Now, new research from dark web intelligence firm Flashpoint indicates the perpetrators may be Chinese, based on its own linguistic analysis. Flashpoint researchers Jon Condra and John Costello analyzed each of WannaCry's localized ransom notes, which is available in 28 languages, for content, accuracy, and style, and discovered that all the notes, except English and Chinese versions (Simplified and Traditional), had been translated via Google Translate. According to the research, Chinese and English versions of the ransomware notes were most likely written by a human. On further analysis, researchers discovered that
More Hacking Groups Found Exploiting SMB Flaw Weeks Before WannaCry

More Hacking Groups Found Exploiting SMB Flaw Weeks Before WannaCry

May 19, 2017Mohit Kumar
Since the Shadow Brokers released the zero-day software vulnerabilities and hacking tools – allegedly belonged to the NSA's elite hacking team Equation Group – several hacking groups and individual hackers have started using them in their own way. The April's data dump was believed to be the most damaging release by the Shadow Brokers till the date, as it publicly leaked lots of Windows hacking tools , including dangerous Windows SMB exploit. After the outbreak of WannaCry last week, security researchers have identified multiple different campaigns exploiting Windows SMB vulnerability (CVE-2017-0143), called Eternalblue , which has already compromised hundreds of thousands of computers worldwide. I have been even confirmed by multiple sources in hacking and intelligence community that there are lots of groups and individuals who are actively exploiting Eternalblue for different motives. Moreover, the Eternalblue SMB exploit ( MS17-010 ) has now been ported to  Met
WannaCry Ransomware Decryption Tool Released; Unlock Files Without Paying Ransom

WannaCry Ransomware Decryption Tool Released; Unlock Files Without Paying Ransom

May 19, 2017Swati Khandelwal
If your PC has been infected by WannaCry – the ransomware that wreaked havoc across the world last Friday – you might be lucky to get your locked files back without paying the ransom of $300 to the cyber criminals. Adrien Guinet, a French security researcher from Quarkslab, has discovered a way to retrieve the secret encryption keys used by the WannaCry ransomware for free, which works on Windows XP, Windows 7, Windows Vista, Windows Server 2003 and 2008 operating systems. WannaCry Ransomware Decryption Keys The WannaCry's encryption scheme works by generating a pair of keys on the victim's computer that rely on prime numbers, a "public" key and a "private" key for encrypting and decrypting the system's files respectively. To prevent the victim from accessing the private key and decrypting locked files himself, WannaCry erases the key from the system, leaving no choice for the victims to retrieve the decryption key except paying the ransom to
Google Researcher Finds Link Between WannaCry Attacks and North Korea

Google Researcher Finds Link Between WannaCry Attacks and North Korea

May 16, 2017Swati Khandelwal
So far, nobody had an idea that who was behind WannaCry ransomware attacks? But now there is a clue that lies in the code. Neel Mehta, a security researcher at Google, found evidence that suggests the WannaCry ransomware, that infected 300,000 machines in 150 countries over the weekend, is linked to a state-sponsored hacking group in North Korea, known for cyber attacks against South Korean organizations. What's Happening? What is WannaCry? This is the fifth day since the WannaCry ransomware attack surfaced, that leverages a critical Windows SMB exploit and still infecting machines across the world using newly released variants that don't have any "kill switch" ability. In case, if you have landed on WannaCry story for the first time, and don't know what's going on, you are advised to also read this simple, summarized, but detailed explanation: WannaCry: What Has Happened So Far & How to protect your PCs WannaCry: First Nation-State Powered Ran
WannaCry Ransomware: Everything You Need To Know Immediately

WannaCry Ransomware: Everything You Need To Know Immediately

May 15, 2017Mohit Kumar
By now I am sure you have already heard something about the WannaCry ransomware , and are wondering what's going on, who is doing this, and whether your computer is secure from this insanely fast-spreading threat that has already hacked nearly 200,000 Windows PCs over the weekend. The only positive thing about this attack is that — you are here — as after reading this easy-to-understandable awareness article, you would be so cautious that you can save yourself from WannaCry, as well as other similar cyber attacks in the future. Also Read — Google Researcher Finds Link Between WannaCry Attacks and North Korea . Since this widely spread ransomware attack is neither the first nor the last one to hit users worldwide, prevention is always the key to protect against such malware threats. What is WannaCry? How to Protect your Computer from WannaCry Ransomware? Follow These Simple Steps. TWEET THIS In this article, we have provided some of the most important primary secu
WannaCry Kill-Switch(ed)? It’s Not Over! WannaCry 2.0 Ransomware Arrives

WannaCry Kill-Switch(ed)? It's Not Over! WannaCry 2.0 Ransomware Arrives

May 13, 2017Swati Khandelwal
Update —  After reading this article, if you want to know, what has happened so far in past 4 days and how to protect your computers from WannaCry, read our latest article " WannaCry Ransomware: Everything You Need To Know Immediately . "  If you are following the news, by now you might be aware that a security researcher has activated a "Kill Switch" which apparently stopped the WannaCry ransomware from spreading further. But it's not true, neither the threat is over yet. However, the kill switch has just slowed down the infection rate. Updated:  Multiple security researchers have claimed that there are more samples of WannaCry out there, with different 'kill-switch' domains and without any kill-switch function, continuing to infect unpatched computers worldwide (find more details below). So far, over 237,000 computers across 99 countries around the world have been infected, and the infection is still rising even hours after the kill swit
Protect Against WannaCry: Microsoft Issues Patch for Unsupported Windows (XP, Vista, 8,...)

Protect Against WannaCry: Microsoft Issues Patch for Unsupported Windows (XP, Vista, 8,...)

May 13, 2017Mohit Kumar
Update —  After reading this article, if you want to know, what has happened so far in past 4 days and how to protect your computers from WannaCry, read our latest article " WannaCry Ransomware: Everything You Need To Know Immediately . "  In the wake of the largest ransomware attack in the history that had already infected over 114,000 Windows systems worldwide since last 24 hours, Microsoft just took an unusual step to protect its customers with out-of-date computers. Also Read —   Google Researcher Finds Link Between WannaCry Attacks and North Korea . Microsoft has just released an emergency security patch update for all its unsupported version of Windows, including Windows XP, Vista, Windows 8, Server 2003 and 2008 Editions. So, if your organization, for some reason, is still running on Windows XP or Vista, you are strongly advised to download and APPLY PATCH NOW ! WannaCrypt , or also known as WannaCry, is a new ransomware that wreaked havoc across the wo
WannaCry Ransomware That's Hitting World Right Now Uses NSA Windows Exploit

WannaCry Ransomware That's Hitting World Right Now Uses NSA Windows Exploit

May 12, 2017Swati Khandelwal
Update —  After reading this article, if you want to know, what has happened so far in past 4 days and how to protect your computers from WannaCry, read our latest article " WannaCry Ransomware: Everything You Need To Know Immediately . "  Earlier today, a massive ransomware campaign hit computer systems of hundreds of private companies and public organizations across the globe – which is believed to be the most massive ransomware delivery campaign to date. The Ransomware in question has been identified as a variant of ransomware known as WannaCry (also known as 'Wana Decrypt0r,' 'WannaCryptor' or 'WCRY'). Like other nasty ransomware variants, WannaCry also blocks access to a computer or its files and demands money to unlock it. Once infected with the WannaCry ransomware, victims are asked to pay up to $300 in order to remove the infection from their PCs; otherwise, their PCs render unusable, and their files remain locked. In separate ne
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