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package cmd
import (
"encoding/json"
"fmt"
"github.com/FalconOpsLLC/goexec/internal/exec"
wmiexec "github.com/FalconOpsLLC/goexec/internal/exec/wmi"
"github.com/spf13/cobra"
)
func wmiCmdInit() {
registerRpcFlags(wmiCmd)
wmiCallCmdInit()
wmiCmd.AddCommand(wmiCallCmd)
wmiProcessCmdInit()
wmiCmd.AddCommand(wmiProcessCmd)
}
func wmiCallCmdInit() {
wmiCallCmd.Flags().StringVarP(&dceConfig.Resource, "namespace", "n", "//./root/cimv2", "WMI namespace")
wmiCallCmd.Flags().StringVarP(&wmi.Class, "class", "C", "", `WMI class to instantiate (i.e. "Win32_Process")`)
wmiCallCmd.Flags().StringVarP(&wmi.Method, "method", "m", "", `WMI Method to call (i.e. "Create")`)
wmiCallCmd.Flags().StringVarP(&wmi.Args, "args", "A", "{}", `WMI Method argument(s) in JSON dictionary format (i.e. {"CommandLine":"calc.exe"})`)
if err := wmiCallCmd.MarkFlagRequired("method"); err != nil {
panic(err)
}
}
func wmiProcessCmdInit() {
wmiProcessCmd.Flags().StringVarP(&command, "command", "c", "", "Process command line")
wmiProcessCmd.Flags().StringVarP(&workingDirectory, "directory", "d", `C:\`, "Working directory")
if err := wmiProcessCmd.MarkFlagRequired("command"); err != nil {
panic(err)
}
}
var (
wmi struct {
Class string
Method string
Args string
}
wmiMethodArgsMap map[string]any
wmiCmd = &cobra.Command{
Use: "wmi",
Short: "Establish execution via WMI",
Args: cobra.NoArgs,
}
wmiCallCmd = &cobra.Command{
Use: "call",
Short: "Execute specified WMI method",
Long: `Description:
The call method creates an instance of the specified WMI class (-c),
then calls the provided method (-m) with the provided arguments (-A).
References:
https://learn.microsoft.com/en-us/windows/win32/wmisdk/wmi-classes
`,
Args: needs(needsTarget("cifs"), needsRpcTarget("cifs"), func(cmd *cobra.Command, args []string) (err error) {
if err = json.Unmarshal([]byte(wmi.Args), &wmiMethodArgsMap); err != nil {
err = fmt.Errorf("parse JSON arguments: %w", err)
}
return
}),
Run: func(cmd *cobra.Command, args []string) {
executor := wmiexec.Module{}
cleanCfg := &exec.CleanupConfig{} // TODO
connCfg := &exec.ConnectionConfig{
ConnectionMethod: exec.ConnectionMethodDCE,
ConnectionMethodConfig: dceConfig,
}
execCfg := &exec.ExecutionConfig{
ExecutableName: executable,
ExecutableArgs: executableArgs,
ExecutionMethod: wmiexec.MethodCall,
ExecutionMethodConfig: wmiexec.MethodCallConfig{
Class: wmi.Class,
Method: wmi.Method,
Arguments: wmiMethodArgsMap,
},
}
ctx = log.With().
Str("module", "wmi").
Str("method", "proc").
Logger().WithContext(ctx)
if err := executor.Connect(ctx, creds, target, connCfg); err != nil {
log.Fatal().Err(err).Msg("Connection failed")
}
defer func() {
if err := executor.Cleanup(ctx, cleanCfg); err != nil {
log.Error().Err(err).Msg("Cleanup failed")
}
}()
if err := executor.Exec(ctx, execCfg); err != nil {
log.Error().Err(err).Msg("Execution failed")
}
},
}
wmiProcessCmd = &cobra.Command{
Use: "proc",
Short: "Start a Windows process",
Long: `Description:
The proc method creates an instance of the Win32_Process WMI class, then
calls the Win32_Process.Create method with the provided command (-c),
and optional working directory (-d).
References:
https://learn.microsoft.com/en-us/windows/win32/cimwin32prov/create-method-in-class-win32-process
`,
Args: needs(needsTarget("cifs"), needsRpcTarget("cifs")),
Run: func(cmd *cobra.Command, args []string) {
executor := wmiexec.Module{}
cleanCfg := &exec.CleanupConfig{} // TODO
connCfg := &exec.ConnectionConfig{
ConnectionMethod: exec.ConnectionMethodDCE,
ConnectionMethodConfig: dceConfig,
}
execCfg := &exec.ExecutionConfig{
ExecutableName: executable,
ExecutableArgs: executableArgs,
ExecutionMethod: wmiexec.MethodProcess,
ExecutionMethodConfig: wmiexec.MethodProcessConfig{
Command: command,
WorkingDirectory: workingDirectory,
},
}
ctx = log.With().
Str("module", "wmi").
Str("method", "proc").
Logger().WithContext(ctx)
if err := executor.Connect(ctx, creds, target, connCfg); err != nil {
log.Fatal().Err(err).Msg("Connection failed")
}
defer func() {
if err := executor.Cleanup(ctx, cleanCfg); err != nil {
log.Error().Err(err).Msg("Cleanup failed")
}
}()
if err := executor.Exec(ctx, execCfg); err != nil {
log.Error().Err(err).Msg("Execution failed")
}
},
}
)
|