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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.[1] The tool infected more than 200,000 Microsoft Windows computers in only a few weeks,[2][3][1][4][5] and was used alongside EternalBlue in the May 2017 WannaCry ransomware attack.[6][7][8]

Sean Dillon, senior analyst of security company RiskSense Inc., first dissected and inspected DoublePulsar.[9][10] He said that the NSA exploits are "10 times worse" than the Heartbleed security bug, and use DoublePulsar as the primary payload. DoublePulsar runs in kernel mode, which grants cybercriminals a high level of control over the computer system.[3] Once installed, it uses three commands: ping, kill, and exec, the latter of which can be used to load malware onto the system.[9]


  1. ^ a b "DoublePulsar malware spreading rapidly in the wild following Shadow Brokers dump". 25 April 2017.
  2. ^ Sterling, Bruce. "Double Pulsar NSA leaked hacks in the wild".
  3. ^ a b "Seriously, Beware the 'Shadow Brokers'". 4 May 2017 – via
  4. ^ "Wana Decrypt0r Ransomware Using NSA Exploit Leaked by Shadow Brokers Is on a Rampage".
  5. ^ ">10,000 Windows computers may be infected by advanced NSA backdoor".
  6. ^ Cameron, Dell. "Today's Massive Ransomware Attack Was Mostly Preventable; Here's How To Avoid It".
  7. ^ Fox-Brewster, Thomas. "How One Simple Trick Just Put Out That Huge Ransomware Fire".
  8. ^ "Player 3 Has Entered the Game: Say Hello to 'WannaCry'". Retrieved 2017-05-15.
  9. ^ a b "DoublePulsar Initial SMB Backdoor Ring 0 Shellcode Analysis". Retrieved 2017-05-16.
  10. ^ "NSA's DoublePulsar Kernel Exploit In Use Internet-Wide". Retrieved 2017-05-16.