mirror of
https://github.com/shadow1ng/fscan.git
synced 2025-07-13 21:02:44 +08:00
245 lines
7.8 KiB
Go
245 lines
7.8 KiB
Go
package Plugins
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import (
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"encoding/binary"
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"encoding/hex"
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"fmt"
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"github.com/shadow1ng/fscan/Common"
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"os"
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"strings"
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"time"
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)
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var (
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// SMB协议加密的请求数据
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negotiateProtocolRequest_enc = "G8o+kd/4y8chPCaObKK8L9+tJVFBb7ntWH/EXJ74635V3UTXA4TFOc6uabZfuLr0Xisnk7OsKJZ2Xdd3l8HNLdMOYZXAX5ZXnMC4qI+1d/MXA2TmidXeqGt8d9UEF5VesQlhP051GGBSldkJkVrP/fzn4gvLXcwgAYee3Zi2opAvuM6ScXrMkcbx200ThnOOEx98/7ArteornbRiXQjnr6dkJEUDTS43AW6Jl3OK2876Yaz5iYBx+DW5WjiLcMR+b58NJRxm4FlVpusZjBpzEs4XOEqglk6QIWfWbFZYgdNLy3WaFkkgDjmB1+6LhpYSOaTsh4EM0rwZq2Z4Lr8TE5WcPkb/JNsWNbibKlwtNtp94fIYvAWgxt5mn/oXpfUD"
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sessionSetupRequest_enc = "52HeCQEbsSwiSXg98sdD64qyRou0jARlvfQi1ekDHS77Nk/8dYftNXlFahLEYWIxYYJ8u53db9OaDfAvOEkuox+p+Ic1VL70r9Q5HuL+NMyeyeN5T5el07X5cT66oBDJnScs1XdvM6CBRtj1kUs2h40Z5Vj9EGzGk99SFXjSqbtGfKFBp0DhL5wPQKsoiXYLKKh9NQiOhOMWHYy/C+Iwhf3Qr8d1Wbs2vgEzaWZqIJ3BM3z+dhRBszQoQftszC16TUhGQc48XPFHN74VRxXgVe6xNQwqrWEpA4hcQeF1+QqRVHxuN+PFR7qwEcU1JbnTNISaSrqEe8GtRo1r2rs7+lOFmbe4qqyUMgHhZ6Pwu1bkhrocMUUzWQBogAvXwFb8"
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treeConnectRequest_enc = "+b/lRcmLzH0c0BYhiTaYNvTVdYz1OdYYDKhzGn/3T3P4b6pAR8D+xPdlb7O4D4A9KMyeIBphDPmEtFy44rtto2dadFoit350nghebxbYA0pTCWIBd1kN0BGMEidRDBwLOpZE6Qpph/DlziDjjfXUz955dr0cigc9ETHD/+f3fELKsopTPkbCsudgCs48mlbXcL13GVG5cGwKzRuP4ezcdKbYzq1DX2I7RNeBtw/vAlYh6etKLv7s+YyZ/r8m0fBY9A57j+XrsmZAyTWbhPJkCg=="
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transNamedPipeRequest_enc = "k/RGiUQ/tw1yiqioUIqirzGC1SxTAmQmtnfKd1qiLish7FQYxvE+h4/p7RKgWemIWRXDf2XSJ3K0LUIX0vv1gx2eb4NatU7Qosnrhebz3gUo7u25P5BZH1QKdagzPqtitVjASpxIjB3uNWtYMrXGkkuAm8QEitberc+mP0vnzZ8Nv/xiiGBko8O4P/wCKaN2KZVDLbv2jrN8V/1zY6fvWA=="
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trans2SessionSetupRequest_enc = "JqNw6PUKcWOYFisUoUCyD24wnML2Yd8kumx9hJnFWbhM2TQkRvKHsOMWzPVfggRrLl8sLQFqzk8bv8Rpox3uS61l480Mv7HdBPeBeBeFudZMntXBUa4pWUH8D9EXCjoUqgAdvw6kGbPOOKUq3WmNb0GDCZapqQwyUKKMHmNIUMVMAOyVfKeEMJA6LViGwyvHVMNZ1XWLr0xafKfEuz4qoHiDyVWomGjJt8DQd6+jgLk="
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// SMB协议解密后的请求数据
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negotiateProtocolRequest []byte
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sessionSetupRequest []byte
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treeConnectRequest []byte
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transNamedPipeRequest []byte
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trans2SessionSetupRequest []byte
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)
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func init() {
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var err error
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// 解密协议请求
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decrypted, err := AesDecrypt(negotiateProtocolRequest_enc, key)
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if err != nil {
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Common.LogError(fmt.Sprintf("协议请求解密错误: %v", err))
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os.Exit(1)
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}
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negotiateProtocolRequest, err = hex.DecodeString(decrypted)
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if err != nil {
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Common.LogError(fmt.Sprintf("协议请求解码错误: %v", err))
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os.Exit(1)
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}
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// 解密会话请求
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decrypted, err = AesDecrypt(sessionSetupRequest_enc, key)
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if err != nil {
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Common.LogError(fmt.Sprintf("会话请求解密错误: %v", err))
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os.Exit(1)
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}
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sessionSetupRequest, err = hex.DecodeString(decrypted)
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if err != nil {
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Common.LogError(fmt.Sprintf("会话请求解码错误: %v", err))
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os.Exit(1)
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}
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// 解密连接请求
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decrypted, err = AesDecrypt(treeConnectRequest_enc, key)
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if err != nil {
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Common.LogError(fmt.Sprintf("连接请求解密错误: %v", err))
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os.Exit(1)
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}
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treeConnectRequest, err = hex.DecodeString(decrypted)
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if err != nil {
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Common.LogError(fmt.Sprintf("连接请求解码错误: %v", err))
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os.Exit(1)
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}
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// 解密管道请求
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decrypted, err = AesDecrypt(transNamedPipeRequest_enc, key)
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if err != nil {
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Common.LogError(fmt.Sprintf("管道请求解密错误: %v", err))
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os.Exit(1)
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}
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transNamedPipeRequest, err = hex.DecodeString(decrypted)
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if err != nil {
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Common.LogError(fmt.Sprintf("管道请求解码错误: %v", err))
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os.Exit(1)
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}
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// 解密会话设置请求
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decrypted, err = AesDecrypt(trans2SessionSetupRequest_enc, key)
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if err != nil {
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Common.LogError(fmt.Sprintf("会话设置解密错误: %v", err))
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os.Exit(1)
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}
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trans2SessionSetupRequest, err = hex.DecodeString(decrypted)
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if err != nil {
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Common.LogError(fmt.Sprintf("会话设置解码错误: %v", err))
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os.Exit(1)
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}
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}
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// MS17010 扫描入口函数
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func MS17010(info *Common.HostInfo) error {
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if Common.DisableBrute {
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return nil
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}
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err := MS17010Scan(info)
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if err != nil {
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Common.LogError(fmt.Sprintf("%s:%s - %v", info.Host, info.Ports, err))
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}
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return err
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}
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func MS17010Scan(info *Common.HostInfo) error {
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ip := info.Host
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// 连接目标
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conn, err := Common.WrapperTcpWithTimeout("tcp", ip+":445", time.Duration(Common.Timeout)*time.Second)
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if err != nil {
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return fmt.Errorf("连接错误: %v", err)
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}
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defer conn.Close()
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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("设置超时错误: %v", err)
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}
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// SMB协议协商
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if _, err = conn.Write(negotiateProtocolRequest); err != nil {
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return fmt.Errorf("发送协议请求错误: %v", err)
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}
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reply := make([]byte, 1024)
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if n, err := conn.Read(reply); err != nil || n < 36 {
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if err != nil {
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return fmt.Errorf("读取协议响应错误: %v", err)
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}
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return fmt.Errorf("协议响应不完整")
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}
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if binary.LittleEndian.Uint32(reply[9:13]) != 0 {
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return fmt.Errorf("协议协商被拒绝")
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}
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// 建立会话
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if _, err = conn.Write(sessionSetupRequest); err != nil {
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return fmt.Errorf("发送会话请求错误: %v", err)
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}
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n, err := conn.Read(reply)
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if err != nil || n < 36 {
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if err != nil {
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return fmt.Errorf("读取会话响应错误: %v", err)
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}
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return fmt.Errorf("会话响应不完整")
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}
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if binary.LittleEndian.Uint32(reply[9:13]) != 0 {
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return fmt.Errorf("会话建立失败")
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}
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// 提取系统信息
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var os string
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sessionSetupResponse := reply[36:n]
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if wordCount := sessionSetupResponse[0]; wordCount != 0 {
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byteCount := binary.LittleEndian.Uint16(sessionSetupResponse[7:9])
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if n != int(byteCount)+45 {
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Common.LogError(fmt.Sprintf("无效会话响应 %s:445", ip))
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} else {
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for i := 10; i < len(sessionSetupResponse)-1; i++ {
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if sessionSetupResponse[i] == 0 && sessionSetupResponse[i+1] == 0 {
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os = string(sessionSetupResponse[10:i])
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os = strings.Replace(os, string([]byte{0x00}), "", -1)
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break
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}
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}
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}
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}
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// 树连接请求
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userID := reply[32:34]
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treeConnectRequest[32] = userID[0]
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treeConnectRequest[33] = userID[1]
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if _, err = conn.Write(treeConnectRequest); err != nil {
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return fmt.Errorf("发送树连接请求错误: %v", err)
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}
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if n, err := conn.Read(reply); err != nil || n < 36 {
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if err != nil {
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return fmt.Errorf("读取树连接响应错误: %v", err)
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}
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return fmt.Errorf("树连接响应不完整")
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}
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// 命名管道请求
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treeID := reply[28:30]
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transNamedPipeRequest[28] = treeID[0]
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transNamedPipeRequest[29] = treeID[1]
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transNamedPipeRequest[32] = userID[0]
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transNamedPipeRequest[33] = userID[1]
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if _, err = conn.Write(transNamedPipeRequest); err != nil {
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return fmt.Errorf("发送管道请求错误: %v", err)
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}
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if n, err := conn.Read(reply); err != nil || n < 36 {
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if err != nil {
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return fmt.Errorf("读取管道响应错误: %v", err)
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}
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return fmt.Errorf("管道响应不完整")
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}
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// 漏洞检测
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if reply[9] == 0x05 && reply[10] == 0x02 && reply[11] == 0x00 && reply[12] == 0xc0 {
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if os != "" {
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Common.LogSuccess(fmt.Sprintf("发现漏洞 %s [%s] MS17-010", ip, os))
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} else {
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Common.LogSuccess(fmt.Sprintf("发现漏洞 %s MS17-010", ip))
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}
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// DOUBLEPULSAR后门检测
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trans2SessionSetupRequest[28] = treeID[0]
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trans2SessionSetupRequest[29] = treeID[1]
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trans2SessionSetupRequest[32] = userID[0]
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trans2SessionSetupRequest[33] = userID[1]
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if _, err = conn.Write(trans2SessionSetupRequest); err != nil {
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return fmt.Errorf("发送后门检测请求错误: %v", err)
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}
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if n, err := conn.Read(reply); err != nil || n < 36 {
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if err != nil {
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return fmt.Errorf("读取后门检测响应错误: %v", err)
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}
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return fmt.Errorf("后门检测响应不完整")
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}
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if reply[34] == 0x51 {
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Common.LogSuccess(fmt.Sprintf("发现后门 %s DOUBLEPULSAR", ip))
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}
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// Shellcode利用
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if Common.Shellcode != "" {
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defer MS17010EXP(info)
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}
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} else if os != "" {
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Common.LogInfo(fmt.Sprintf("系统信息 %s [%s]", ip, os))
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}
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return nil
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}
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