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rapid7 / rex-powershell

Rex library for dealing with Powershell Scripts
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Rex::Powershell::Command.compress_script generates not working payloads #15

Closed phra closed 5 years ago

phra commented 5 years ago

duplicate of https://github.com/rapid7/rex/issues/9

Rex::Powershell::Command.compress_script generates payload that are not working on win 10 1803. after some debugging i discovered that:

the current generated payload is ( NeW-OBJeCT iO.streAmreaDER( ( NeW-OBJeCT Io.ComPreSsioN.dEfLATEStReAm( [SYsTEM.Io.MEMOrYstReam][coNvERT]::FROmBase64sTRinG('S03OyFdIzkzMV6hRyC8t0U3LzElVAJMFiSUZCslWMaXFqUXFMQWlSTmZyTEpmfnJiXmpeiUVJQA=') ,[sYStEM.Io.cOMpreSSiON.coMprEssIONMoDe]::decoMPrEss)) ,[systEM.TeXT.EncoDIng]::ASCii) ).reAdtoEnD( )| Write-Host

but the working version is ( NeW-OBJeCT system.iO.streAmreaDER( ( NeW-OBJeCT system.Io.ComPreSsioN.dEfLATEStReAm( [SYsTEM.Io.MEMOrYstReam][system.coNvERT]::FROmBase64sTRinG('S03OyFdIzkzMV6hRyC8t0U3LzElVAJMFiSUZCslWMaXFqUXFMQWlSTmZyTEpmfnJiXmpeiUVJQA=') ,[sYStEM.Io.cOMpreSSiON.coMprEssIONMoDe]::decoMPrEss)) ,[systEM.TeXT.EncoDIng]::ASCii) ).reAdtoEnD( )| Write-Host