Beware: JustJoke Malware Isn’t Joking with Your System!

In the latest twist, the Backdoor.Win32.JustJoke.21 malware not only listens on TCP port 28072 but also hilariously fails to execute commands while still claiming “Executed!” Perfect for pranksters who want a laugh, but not so much for securing your system.

Hot Take:

Looks like the pranksters behind Backdoor.Win32.JustJoke.21 are handing out more than just punchlines! This malware is the digital equivalent of a whoopee cushion that also steals your lunch money.

Key Points:

  • Backdoor.Win32.JustJoke.21 allows unauthenticated remote command execution.
  • Disguises itself by throwing a fake error message about a missing file.
  • Drops a hidden executable named “Scanvegw.exe” in the SysWoW64 directory.
  • Makes outbound connections via SMTP port 25.
  • Uses the WinExec API to execute commands, but loves to pretend it succeeded even when it fails.

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