1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
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"
)
type flagSet struct {
Label string
Flags *pflag.FlagSet
}
const helpTemplate = `Usage:{{if .Runnable}}
{{.UseLine}}{{end}}{{if .HasAvailableSubCommands}}
{{.CommandPath}} [command] [flags]{{end}}{{if gt (len .Aliases) 0}}
Aliases:
{{.NameAndAliases}}{{end}}{{if .HasExample}}
Examples:
{{.Example}}{{end}}{{if .HasAvailableSubCommands}}{{$cmds := .Commands}}{{if eq (len .Groups) 0}}
Available Commands:{{range $cmds}}{{if (or .IsAvailableCommand (eq .Name "help"))}}
{{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{else}}{{range $group := .Groups}}
{{.Title}}{{range $cmds}}{{if (and (eq .GroupID $group.ID) (or .IsAvailableCommand (eq .Name "help")))}}
{{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{end}}{{if not .AllChildCommandsHaveGroup}}
Additional Commands:{{range $cmds}}{{if (and (eq .GroupID "") (or .IsAvailableCommand (eq .Name "help")))}}
{{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{end}}{{end}}{{end}}{{if (ne .Name "completion")}}{{range $_, $v := cmdFlags .}}
{{$v.Label|trimTrailingWhitespaces}}:
{{flags $v.Flags|trimTrailingWhitespaces}}{{end}}{{end}}{{if .HasHelpSubCommands}}
Additional help topics:{{range .Commands}}{{if .IsAdditionalHelpTopicCommand}}
{{rpad .CommandPath .CommandPathPadding}} {{.Short}}{{end}}{{end}}{{end}}{{if .HasAvailableSubCommands}}
Use "{{.CommandPath}} [command] --help" for more information about a command.{{end}}
`
var (
cmdFlags = make(map[*cobra.Command][]*flagSet)
defaultAuthFlags, defaultLogFlags, defaultNetRpcFlags *flagSet
returnCode int
outputMethod string
outputPath string
proxy string
// === Logging ===
logJson bool // Log output in JSON lines
logDebug bool // Output debug log messages
logQuiet bool // Suppress logging output
logOutput string // Log output file
logLevel zerolog.Level = zerolog.InfoLevel
logFile io.WriteCloser = os.Stderr
log zerolog.Logger
// ===============
rpcClient dce.Client
smbClient smb.Client
exec = goexec.ExecutionIO{
Input: new(goexec.ExecutionInput),
Output: new(goexec.ExecutionOutput),
}
adAuthOpts *adauth.Options
credential *adauth.Credential
target *adauth.Target
rootCmd = &cobra.Command{
Use: "goexec",
Short: `Windows remote execution multitool`,
Long: ``,
PersistentPreRunE: func(cmd *cobra.Command, args []string) (err error) {
// Parse logging options
{
if logOutput != "" {
logFile, err = os.OpenFile(logOutput, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
if err != nil {
return
}
logJson = true
}
if logQuiet {
logLevel = zerolog.ErrorLevel
} else if logDebug {
logLevel = zerolog.DebugLevel
}
if logJson {
log = zerolog.New(logFile).With().Timestamp().Logger()
} else {
log = zerolog.New(zerolog.ConsoleWriter{Out: logFile}).With().Timestamp().Logger()
}
log = log.Level(logLevel)
}
if proxy != "" {
rpcClient.Proxy = proxy
smbClient.Proxy = proxy
}
if outputPath != "" {
if outputMethod == "smb" {
if exec.Output.RemotePath == "" {
exec.Output.RemotePath = util.RandomWindowsTempFile()
}
exec.Output.Provider = &smb.OutputFileFetcher{
Client: &smbClient,
Share: `C$`,
File: exec.Output.RemotePath,
DeleteOutputFile: !exec.Output.NoDelete,
}
}
}
return
},
PersistentPostRun: func(cmd *cobra.Command, args []string) {
if err := logFile.Close(); err != nil {
// ...
}
},
}
)
func newFlagSet(name string) *flagSet {
flags := pflag.NewFlagSet(name, pflag.ExitOnError)
flags.SortFlags = false
return &flagSet{
Label: name,
Flags: flags,
}
}
func init() {
// Auth init
{
gssapi.AddMechanism(ssp.SPNEGO)
gssapi.AddMechanism(ssp.NTLM)
gssapi.AddMechanism(ssp.KRB5)
}
// Cobra init
{
cobra.EnableCommandSorting = false
{
defaultNetRpcFlags = newFlagSet("Network")
registerNetworkFlags(defaultNetRpcFlags.Flags)
}
{
defaultLogFlags = newFlagSet("Logging")
registerLoggingFlags(defaultLogFlags.Flags)
}
{
defaultAuthFlags = newFlagSet("Authentication")
adAuthOpts = &adauth.Options{
Debug: log.Debug().Msgf,
}
adAuthOpts.RegisterFlags(defaultAuthFlags.Flags)
}
modules := &cobra.Group{
ID: "module",
Title: "Execution Commands:",
}
rootCmd.AddGroup(modules)
cmdFlags[rootCmd] = []*flagSet{
defaultLogFlags,
defaultAuthFlags,
}
cobra.AddTemplateFunc("flags", func(fs *pflag.FlagSet) string {
if width, _, err := term.GetSize(int(os.Stdout.Fd())); err == nil {
return fs.FlagUsagesWrapped(width - 1)
}
return fs.FlagUsagesWrapped(80 - 1)
})
cobra.AddTemplateFunc("cmdFlags", func(cmd *cobra.Command) []*flagSet {
return cmdFlags[cmd]
})
rootCmd.InitDefaultVersionFlag()
rootCmd.InitDefaultHelpCmd()
rootCmd.SetHelpTemplate("{{if (ne .Long \"\")}}{{.Long}}\n{{end}}" + helpTemplate)
rootCmd.SetUsageTemplate(helpTemplate)
// 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)
}
|