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package cmd
import (
"context"
"encoding/json"
"fmt"
"github.com/FalconOpsLLC/goexec/pkg/goexec"
wmiexec "github.com/FalconOpsLLC/goexec/pkg/goexec/wmi"
"github.com/oiweiwei/go-msrpc/ssp/gssapi"
"github.com/spf13/cobra"
)
func wmiCmdInit() {
registerRpcFlags(wmiCmd)
wmiCallCmdInit()
wmiCmd.AddCommand(wmiCallCmd)
wmiProcCmdInit()
wmiCmd.AddCommand(wmiProcCmd)
}
func wmiCallArgs(_ *cobra.Command, _ []string) error {
return json.Unmarshal([]byte(wmiArguments), &wmiCall.Args)
}
func wmiCallCmdInit() {
wmiCallCmd.Flags().StringVarP(&wmiCall.Resource, "namespace", "n", "//./root/cimv2", "WMI namespace")
wmiCallCmd.Flags().StringVarP(&wmiCall.Class, "class", "C", "", `WMI class to instantiate (i.e. "Win32_Process")`)
wmiCallCmd.Flags().StringVarP(&wmiCall.Method, "method", "m", "", `WMI Method to call (i.e. "Create")`)
wmiCallCmd.Flags().StringVarP(&wmiArguments, "args", "A", "{}", `WMI Method argument(s) in JSON dictionary format (i.e. {"Command":"calc.exe"})`)
if err := wmiCallCmd.MarkFlagRequired("class"); err != nil {
panic(err)
}
if err := wmiCallCmd.MarkFlagRequired("method"); err != nil {
panic(err)
}
}
func wmiProcCmdInit() {
wmiProcCmd.Flags().StringVarP(&wmiProc.Resource, "namespace", "n", "//./root/cimv2", "WMI namespace")
wmiProcCmd.Flags().StringVarP(&wmiProc.WorkingDirectory, "directory", "d", `C:\`, "Working directory")
registerProcessExecutionArgs(wmiProcCmd)
registerExecutionOutputArgs(wmiProcCmd)
}
var (
wmiCall = wmiexec.WmiCall{}
wmiProc = wmiexec.WmiProc{}
wmiArguments string
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: args(argsRpcClient("host"), wmiCallArgs),
Run: func(cmd *cobra.Command, args []string) {
var err error
ctx := gssapi.NewSecurityContext(context.Background())
ctx = log.With().
Str("module", "wmi").
Str("method", "call").
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 = wmiCall.Init(ctx); err != nil {
log.Error().Err(err).Msg("Module initialization failed")
returnCode = 2
return
}
out, err := wmiCall.Call(ctx)
if err != nil {
log.Error().Err(err).Msg("Call failed")
returnCode = 4
return
}
fmt.Println(string(out))
},
}
wmiProcCmd = &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: args(
argsOutput("smb"),
argsRpcClient("host"),
),
Run: func(cmd *cobra.Command, args []string) {
wmiProc.Client = &rpcClient
wmiProc.IO = exec
ctx := log.With().
Str("module", "wmi").
Str("method", "proc").
Logger().WithContext(gssapi.NewSecurityContext(context.Background()))
if err := goexec.ExecuteCleanMethod(ctx, &wmiProc, &exec); err != nil {
log.Fatal().Err(err).Msg("Operation failed")
}
},
}
)
|