SharpGen Aggressor Beacon Wrapper

sharpgen.cna

$dotnetpath = "/usr/local/share/dotnet/dotnet";
$sharpgenpath = "/Users/dtmsecurity/Tools/SharpGen/bin/Debug/netcoreapp2.1/SharpGen.dll";
$temppath = "/tmp/";

beacon_command_register("sharpgen", "Compile and execute C-Sharp","Synopsis: sharpgen [code]\n");

alias sharpgen{
	$executionId  = "sharpgen_" . int(rand() * 100000);
	$temporaryCsharp =  $temppath . $executionId . ".cs";
	$executableFilename = $temppath . $executionId . ".exe";
	$code = replace($0, "sharpgen ", "");
	$escaped = replace($code, '"', '\"');
	@command = @($dotnetpath,$sharpgenpath,'-f',$executableFilename,$escaped);
	$proc = exec(@command);
	@data = readAll($proc);

	$success = 0;
	foreach $value (@data){
		blog2($1, $value);
		if('Compiled assembly written' isin $value){
			$success = 1;
			bexecute_assembly($1, $executableFilename);
			sleep(1000);
			deleteFile($executableFilename);	
		}
	}
	if($success == 0){
		blog2($1, "Error compiling with SharpGen");
	}
}