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package cmd
import (
"fmt"
"github.com/FalconOpsLLC/goexec/internal/util"
"github.com/FalconOpsLLC/goexec/pkg/goexec"
"github.com/FalconOpsLLC/goexec/pkg/goexec/dce"
"github.com/FalconOpsLLC/goexec/pkg/goexec/smb"
"github.com/RedTeamPentesting/adauth"
"github.com/oiweiwei/go-msrpc/ssp"
"github.com/oiweiwei/go-msrpc/ssp/gssapi"
"github.com/rs/zerolog"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
"golang.org/x/term"
"io"
"os"
)
var (
flagGroups = map[string]*pflag.FlagSet{}
returnCode int
outputMethod string
outputPath string
proxy string
// === Logging ===
logJson bool // Log output in JSON lines
logDebug bool // Output debug log messages
logQuiet bool // Suppress logging output
logOutput string // Log output file
logLevel zerolog.Level = zerolog.InfoLevel
logFile io.WriteCloser = os.Stderr
log zerolog.Logger
// ===============
rpcClient dce.Client
smbClient smb.Client
exec = goexec.ExecutionIO{
Input: new(goexec.ExecutionInput),
Output: new(goexec.ExecutionOutput),
}
adAuthOpts *adauth.Options
credential *adauth.Credential
target *adauth.Target
rootCmd = &cobra.Command{
Use: "goexec",
Short: `Windows remote execution multitool`,
Long: ``,
PersistentPreRunE: func(cmd *cobra.Command, args []string) (err error) {
// Parse logging options
{
if logOutput != "" {
logFile, err = os.OpenFile(logOutput, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
if err != nil {
return
}
logJson = true
}
if logQuiet {
logLevel = zerolog.ErrorLevel
} else if logDebug {
logLevel = zerolog.DebugLevel
}
if logJson {
log = zerolog.New(logFile).With().Timestamp().Logger()
} else {
log = zerolog.New(zerolog.ConsoleWriter{Out: logFile}).With().Timestamp().Logger()
}
log = log.Level(logLevel)
}
if proxy != "" {
rpcClient.Proxy = proxy
smbClient.Proxy = proxy
}
if outputPath != "" {
if outputMethod == "smb" {
if exec.Output.RemotePath == "" {
exec.Output.RemotePath = util.RandomWindowsTempFile()
}
exec.Output.Provider = &smb.OutputFileFetcher{
Client: &smbClient,
Share: `C$`,
File: exec.Output.RemotePath,
DeleteOutputFile: !exec.Output.NoDelete,
}
}
}
return
},
PersistentPostRun: func(cmd *cobra.Command, args []string) {
if err := logFile.Close(); err != nil {
// ...
}
},
}
)
func addFlagSet(fs *pflag.FlagSet) {
flagGroups[fs.Name()] = fs
}
func moduleFlags(cmd *cobra.Command, module string) (fs *pflag.FlagSet) {
fs, _ = flagGroups[module]
return
}
// Uses the users terminal size or width of 80 if cannot determine users width
// Based on https://github.com/spf13/cobra/issues/1805#issuecomment-1246192724
func wrappedFlagUsages(cmd *pflag.FlagSet) string {
fd := int(os.Stdout.Fd())
width := 80
// Get the terminal width and dynamically set
termWidth, _, err := term.GetSize(fd)
if err == nil {
width = termWidth
}
return cmd.FlagUsagesWrapped(width - 1)
}
func init() {
// Auth init
{
gssapi.AddMechanism(ssp.SPNEGO)
gssapi.AddMechanism(ssp.NTLM)
gssapi.AddMechanism(ssp.KRB5)
}
// Cobra init
{
cobra.EnableCommandSorting = false
rootCmd.InitDefaultVersionFlag()
rootCmd.InitDefaultHelpCmd()
modules := &cobra.Group{
ID: "module",
Title: "Execution Commands:",
}
rootCmd.AddGroup(modules)
// Logging flags
{
logOpts := pflag.NewFlagSet("Logging", pflag.ExitOnError)
logOpts.BoolVar(&logDebug, "debug", false, "Enable debug logging")
logOpts.BoolVar(&logJson, "json", false, "Write logging output in JSON lines")
logOpts.BoolVar(&logQuiet, "quiet", false, "Disable info logging")
logOpts.StringVarP(&logOutput, "log-file", "O", "", "Write JSON logging output to `file`")
rootCmd.PersistentFlags().AddFlagSet(logOpts)
flagGroups["Logging"] = logOpts
}
// Global networking flags
{
netOpts := pflag.NewFlagSet("Network", pflag.ExitOnError)
netOpts.StringVarP(&proxy, "proxy", "x", "", "Proxy `URI`")
rootCmd.PersistentFlags().AddFlagSet(netOpts)
}
// Authentication flags
{
adAuthOpts = &adauth.Options{
Debug: log.Debug().Msgf,
}
authOpts := pflag.NewFlagSet("Authentication", pflag.ExitOnError)
adAuthOpts.RegisterFlags(authOpts)
rootCmd.PersistentFlags().AddFlagSet(authOpts)
}
// Modules init
{
dcomCmdInit()
rootCmd.AddCommand(dcomCmd)
wmiCmdInit()
rootCmd.AddCommand(wmiCmd)
scmrCmdInit()
rootCmd.AddCommand(scmrCmd)
tschCmdInit()
rootCmd.AddCommand(tschCmd)
}
}
}
func Execute() {
if err := rootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(1)
}
os.Exit(returnCode)
}
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