2020-12-29 17:17:10 +08:00
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package Plugins
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import (
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"bytes"
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"encoding/hex"
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"fmt"
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2024-12-18 22:00:18 +08:00
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"github.com/shadow1ng/fscan/Common"
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2024-12-18 21:56:08 +08:00
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"github.com/shadow1ng/fscan/Config"
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2023-08-28 03:58:19 +02:00
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"strconv"
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2020-12-29 17:17:10 +08:00
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"strings"
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"time"
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)
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var (
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// RPC请求数据包
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bufferV1, _ = hex.DecodeString("05000b03100000004800000001000000b810b810000000000100000000000100c4fefc9960521b10bbcb00aa0021347a00000000045d888aeb1cc9119fe808002b10486002000000")
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bufferV2, _ = hex.DecodeString("050000031000000018000000010000000000000000000500")
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bufferV3, _ = hex.DecodeString("0900ffff0000")
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)
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2024-12-18 23:39:13 +08:00
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// Findnet 探测Windows网络主机信息的入口函数
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func Findnet(info *Config.HostInfo) error {
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return FindnetScan(info)
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}
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// FindnetScan 通过RPC协议扫描网络主机信息
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func FindnetScan(info *Config.HostInfo) error {
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// 连接目标RPC端口
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target := fmt.Sprintf("%s:%v", info.Host, 135)
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conn, err := Common.WrapperTcpWithTimeout("tcp", target, time.Duration(Common.Timeout)*time.Second)
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if err != nil {
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return fmt.Errorf("[-] 连接RPC端口失败: %v", err)
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}
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defer conn.Close()
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// 设置连接超时
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if err = conn.SetDeadline(time.Now().Add(time.Duration(Common.Timeout) * time.Second)); err != nil {
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return fmt.Errorf("[-] 设置超时失败: %v", err)
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}
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// 发送第一个RPC请求
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if _, err = conn.Write(bufferV1); err != nil {
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return fmt.Errorf("[-] 发送RPC请求1失败: %v", err)
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}
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// 读取响应
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reply := make([]byte, 4096)
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if _, err = conn.Read(reply); err != nil {
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return fmt.Errorf("[-] 读取RPC响应1失败: %v", err)
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}
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// 发送第二个RPC请求
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if _, err = conn.Write(bufferV2); err != nil {
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return fmt.Errorf("[-] 发送RPC请求2失败: %v", err)
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}
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// 读取并检查响应
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n, err := conn.Read(reply)
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if err != nil || n < 42 {
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return fmt.Errorf("[-] 读取RPC响应2失败: %v", err)
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}
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// 解析响应数据
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text := reply[42:]
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found := false
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for i := 0; i < len(text)-5; i++ {
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if bytes.Equal(text[i:i+6], bufferV3) {
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text = text[:i-4]
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found = true
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break
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}
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}
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if !found {
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return fmt.Errorf("[-] 未找到有效的响应标记")
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}
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// 解析主机信息
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return read(text, info.Host)
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}
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// HexUnicodeStringToString 将16进制Unicode字符串转换为可读字符串
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func HexUnicodeStringToString(src string) string {
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// 确保输入长度是4的倍数
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if len(src)%4 != 0 {
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src += src[:len(src)-len(src)%4]
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}
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// 转换为标准Unicode格式
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var sText string
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for i := 0; i < len(src); i += 4 {
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sText += "\\u" + src[i+2:i+4] + src[i:i+2] // 调整字节顺序
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}
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// 解析每个Unicode字符
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unicodeChars := strings.Split(sText, "\\u")
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var result string
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for _, char := range unicodeChars {
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// 跳过空字符
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if len(char) < 1 {
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continue
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}
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// 将16进制转换为整数
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codePoint, err := strconv.ParseInt(char, 16, 32)
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if err != nil {
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return ""
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}
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// 转换为实际字符
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result += fmt.Sprintf("%c", codePoint)
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}
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return result
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}
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// read 解析并显示主机网络信息
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func read(text []byte, host string) error {
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// 将原始数据转换为16进制字符串
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encodedStr := hex.EncodeToString(text)
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// 解析主机名
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var hostName string
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for i := 0; i < len(encodedStr)-4; i += 4 {
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if encodedStr[i:i+4] == "0000" {
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break
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}
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hostName += encodedStr[i : i+4]
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}
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// 转换主机名为可读字符串
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name := HexUnicodeStringToString(hostName)
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// 解析网络信息
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netInfo := strings.Replace(encodedStr, "0700", "", -1)
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hosts := strings.Split(netInfo, "000000")
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hosts = hosts[1:] // 跳过第一个空元素
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// 构造输出结果
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result := fmt.Sprintf("[*] NetInfo\n[*] %s", host)
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if name != "" {
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result += fmt.Sprintf("\n [->] %s", name)
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}
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// 解析每个网络主机信息
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for _, h := range hosts {
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// 移除填充字节
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h = strings.Replace(h, "00", "", -1)
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// 解码主机信息
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hostInfo, err := hex.DecodeString(h)
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if err != nil {
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return fmt.Errorf("[-] 解码主机信息失败: %v", err)
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}
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result += fmt.Sprintf("\n [->] %s", string(hostInfo))
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}
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// 输出结果
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Common.LogSuccess(result)
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return nil
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}
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