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EternalBlue [5] is a computer exploit software developed by the U.S. National Security Agency (NSA). [6] It is based on a vulnerability in Microsoft Windows that allowed users to gain access to any number of computers connected to a network .
EternalBlue was stolen and leaked by a group called The Shadow Brokers a month prior to the attack. While Microsoft had released patches previously to close the exploit, much of WannaCry's spread was from organizations that had not applied these, or were using older Windows systems that were past their end of life. These patches were imperative ...
DoublePulsar is a backdoor implant tool developed by the U.S. National Security Agency's (NSA) Equation Group that was leaked by The Shadow Brokers in early 2017. [3] [citation needed] The tool infected more than 200,000 Microsoft Windows computers in only a few weeks, [4] [5] [3] [6] [7] and was used alongside EternalBlue in the May 2017 WannaCry ransomware attack.
The "NotPetya" variant used in the 2017 attack uses EternalBlue, an exploit that takes advantage of a vulnerability in Windows' Server Message Block (SMB) protocol. EternalBlue is generally believed to have been developed by the U.S. National Security Agency (NSA); [28] it was leaked in April 2017 and was also used by WannaCry.
The EternalBlue exploit had been previously identified, and Microsoft issued patches in March 2017 to shut down the exploit for Windows Vista, Windows 7, Windows 8.1, Windows 10, Windows Server 2008, Windows Server 2012, and Windows Server 2016. However, the WannaCry attack progressed through many computer systems that still used older Windows ...
EXTRABACON, a Simple Network Management Protocol exploit against Cisco's ASA software, was a zero-day exploit as of the time of the announcement. [17] Juniper also confirmed that its NetScreen firewalls were affected. [18] The EternalBlue exploit was used to conduct the damaging worldwide WannaCry ransomware attack.
The Shadow Brokers (TSB) is a hacker group who first appeared in the summer of 2016. [1] [2] They published several leaks containing hacking tools, including several zero-day exploits, [1] from the "Equation Group" who are widely suspected to be a branch of the National Security Agency (NSA) of the United States.
Wincry was the base of the encryption, but two additional exploits, EternalBlue and DoublePulsar, were used by the malware to make it a cryptoworm. EternalBlue automatically spreads the virus through networks, while DoublePulsar triggered it to activate on a victim's computer.