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MalwareTech found the kill switch for WannaCrypt too. https://www.theguardian.com/technology/2017/may/13/accidental-hero-finds-kill-switch-to-stop-spread-of-ra

• whatnotests 9y ago
  This sounds like something straight out of a James Bond movie.
  • mirimir 9y ago
    That was a dumb move by the malware coder ;) Wouldn't you want to hide a kill switch?
    • tempay 9y ago
      The MalwareTech write up gives a plausible reason for the developer having accidentally added the kill switch: > I believe they were trying to query an intentionally unregistered domain which would appear registered in certain sandbox environments, then once they see the domain responding, they know they’re in a sandbox the malware exits to prevent further analysis.
• pradeepchhetri 9y ago
  MalwareTech wrote a blog about it: https://www.malwaretech.com/2017/05/how-to-accidentally-stop-a-global-cyber-attacks.html https://www.malwaretech.com/2017/05/how-to-accidentally-stop...