mirror of https://github.com/qwqdanchun/fscan.git
376 lines
11 KiB
Go
376 lines
11 KiB
Go
package Plugins
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import (
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"bytes"
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"errors"
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"fmt"
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"example.com/fxscan/common"
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"gopkg.in/yaml.v3"
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"net"
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"strconv"
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"strings"
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"time"
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)
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var netbioserr = errors.New("netbios error")
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func NetBIOS(info *common.HostInfo) error {
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netbios, _ := NetBIOS1(info)
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output := netbios.String()
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if len(output) > 0 {
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result := fmt.Sprintf("[*] NetBios: %-15s %s", info.Host, output)
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common.LogSuccess(result)
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return nil
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}
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return netbioserr
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}
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func NetBIOS1(info *common.HostInfo) (netbios NetBiosInfo, err error) {
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netbios, err = GetNbnsname(info)
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var payload0 []byte
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if netbios.ServerService != "" || netbios.WorkstationService != "" {
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ss := netbios.ServerService
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if ss == "" {
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ss = netbios.WorkstationService
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}
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name := netbiosEncode(ss)
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payload0 = append(payload0, []byte("\x81\x00\x00D ")...)
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payload0 = append(payload0, name...)
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payload0 = append(payload0, []byte("\x00 EOENEBFACACACACACACACACACACACACA\x00")...)
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}
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realhost := fmt.Sprintf("%s:%v", info.Host, info.Ports)
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var conn net.Conn
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conn, err = common.WrapperTcpWithTimeout("tcp", realhost, time.Duration(common.Timeout)*time.Second)
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defer func() {
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if conn != nil {
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conn.Close()
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}
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}()
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if err != nil {
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return
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}
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err = conn.SetDeadline(time.Now().Add(time.Duration(common.Timeout) * time.Second))
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if err != nil {
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return
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}
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if info.Ports == "139" && len(payload0) > 0 {
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_, err1 := conn.Write(payload0)
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if err1 != nil {
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return
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}
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_, err1 = ReadBytes(conn)
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if err1 != nil {
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return
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}
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}
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_, err = conn.Write(NegotiateSMBv1Data1)
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if err != nil {
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return
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}
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_, err = ReadBytes(conn)
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if err != nil {
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return
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}
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_, err = conn.Write(NegotiateSMBv1Data2)
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if err != nil {
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return
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}
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var ret []byte
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ret, err = ReadBytes(conn)
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if err != nil {
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return
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}
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netbios2, err := ParseNTLM(ret)
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JoinNetBios(&netbios, &netbios2)
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return
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}
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func GetNbnsname(info *common.HostInfo) (netbios NetBiosInfo, err error) {
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senddata1 := []byte{102, 102, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 32, 67, 75, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 0, 0, 33, 0, 1}
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//senddata1 := []byte("ff\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00 CKAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\x00\x00!\x00\x01")
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realhost := fmt.Sprintf("%s:137", info.Host)
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conn, err := net.DialTimeout("udp", realhost, time.Duration(common.Timeout)*time.Second)
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defer func() {
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if conn != nil {
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conn.Close()
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}
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}()
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if err != nil {
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return
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}
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err = conn.SetDeadline(time.Now().Add(time.Duration(common.Timeout) * time.Second))
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if err != nil {
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return
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}
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_, err = conn.Write(senddata1)
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if err != nil {
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return
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}
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text, _ := ReadBytes(conn)
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netbios, err = ParseNetBios(text)
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return
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}
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func bytetoint(text byte) (int, error) {
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num1 := fmt.Sprintf("%v", text)
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num, err := strconv.Atoi(num1)
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return num, err
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}
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func netbiosEncode(name string) (output []byte) {
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var names []int
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src := fmt.Sprintf("%-16s", name)
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for _, a := range src {
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char_ord := int(a)
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high_4_bits := char_ord >> 4
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low_4_bits := char_ord & 0x0f
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names = append(names, high_4_bits, low_4_bits)
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}
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for _, one := range names {
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out := (one + 0x41)
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output = append(output, byte(out))
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}
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return
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}
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var (
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UNIQUE_NAMES = map[string]string{
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"\x00": "WorkstationService",
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"\x03": "Messenger Service",
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"\x06": "RAS Server Service",
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"\x1F": "NetDDE Service",
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"\x20": "ServerService",
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"\x21": "RAS Client Service",
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"\xBE": "Network Monitor Agent",
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"\xBF": "Network Monitor Application",
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"\x1D": "Master Browser",
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"\x1B": "Domain Master Browser",
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}
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GROUP_NAMES = map[string]string{
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"\x00": "DomainName",
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"\x1C": "DomainControllers",
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"\x1E": "Browser Service Elections",
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}
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NetBIOS_ITEM_TYPE = map[string]string{
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"\x01\x00": "NetBiosComputerName",
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"\x02\x00": "NetBiosDomainName",
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"\x03\x00": "ComputerName",
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"\x04\x00": "DomainName",
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"\x05\x00": "DNS tree name",
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"\x07\x00": "Time stamp",
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}
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NegotiateSMBv1Data1 = []byte{
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0x00, 0x00, 0x00, 0x85, 0xFF, 0x53, 0x4D, 0x42, 0x72, 0x00, 0x00, 0x00, 0x00, 0x18, 0x53, 0xC8,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFE,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x62, 0x00, 0x02, 0x50, 0x43, 0x20, 0x4E, 0x45, 0x54, 0x57, 0x4F,
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0x52, 0x4B, 0x20, 0x50, 0x52, 0x4F, 0x47, 0x52, 0x41, 0x4D, 0x20, 0x31, 0x2E, 0x30, 0x00, 0x02,
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0x4C, 0x41, 0x4E, 0x4D, 0x41, 0x4E, 0x31, 0x2E, 0x30, 0x00, 0x02, 0x57, 0x69, 0x6E, 0x64, 0x6F,
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0x77, 0x73, 0x20, 0x66, 0x6F, 0x72, 0x20, 0x57, 0x6F, 0x72, 0x6B, 0x67, 0x72, 0x6F, 0x75, 0x70,
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0x73, 0x20, 0x33, 0x2E, 0x31, 0x61, 0x00, 0x02, 0x4C, 0x4D, 0x31, 0x2E, 0x32, 0x58, 0x30, 0x30,
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0x32, 0x00, 0x02, 0x4C, 0x41, 0x4E, 0x4D, 0x41, 0x4E, 0x32, 0x2E, 0x31, 0x00, 0x02, 0x4E, 0x54,
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0x20, 0x4C, 0x4D, 0x20, 0x30, 0x2E, 0x31, 0x32, 0x00,
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}
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NegotiateSMBv1Data2 = []byte{
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0x00, 0x00, 0x01, 0x0A, 0xFF, 0x53, 0x4D, 0x42, 0x73, 0x00, 0x00, 0x00, 0x00, 0x18, 0x07, 0xC8,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFE,
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0x00, 0x00, 0x40, 0x00, 0x0C, 0xFF, 0x00, 0x0A, 0x01, 0x04, 0x41, 0x32, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x4A, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD4, 0x00, 0x00, 0xA0, 0xCF, 0x00, 0x60,
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0x48, 0x06, 0x06, 0x2B, 0x06, 0x01, 0x05, 0x05, 0x02, 0xA0, 0x3E, 0x30, 0x3C, 0xA0, 0x0E, 0x30,
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0x0C, 0x06, 0x0A, 0x2B, 0x06, 0x01, 0x04, 0x01, 0x82, 0x37, 0x02, 0x02, 0x0A, 0xA2, 0x2A, 0x04,
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0x28, 0x4E, 0x54, 0x4C, 0x4D, 0x53, 0x53, 0x50, 0x00, 0x01, 0x00, 0x00, 0x00, 0x07, 0x82, 0x08,
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0xA2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x05, 0x02, 0xCE, 0x0E, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x57, 0x00, 0x69, 0x00, 0x6E, 0x00,
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0x64, 0x00, 0x6F, 0x00, 0x77, 0x00, 0x73, 0x00, 0x20, 0x00, 0x53, 0x00, 0x65, 0x00, 0x72, 0x00,
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0x76, 0x00, 0x65, 0x00, 0x72, 0x00, 0x20, 0x00, 0x32, 0x00, 0x30, 0x00, 0x30, 0x00, 0x33, 0x00,
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0x20, 0x00, 0x33, 0x00, 0x37, 0x00, 0x39, 0x00, 0x30, 0x00, 0x20, 0x00, 0x53, 0x00, 0x65, 0x00,
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0x72, 0x00, 0x76, 0x00, 0x69, 0x00, 0x63, 0x00, 0x65, 0x00, 0x20, 0x00, 0x50, 0x00, 0x61, 0x00,
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0x63, 0x00, 0x6B, 0x00, 0x20, 0x00, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x57, 0x00, 0x69, 0x00,
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0x6E, 0x00, 0x64, 0x00, 0x6F, 0x00, 0x77, 0x00, 0x73, 0x00, 0x20, 0x00, 0x53, 0x00, 0x65, 0x00,
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0x72, 0x00, 0x76, 0x00, 0x65, 0x00, 0x72, 0x00, 0x20, 0x00, 0x32, 0x00, 0x30, 0x00, 0x30, 0x00,
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0x33, 0x00, 0x20, 0x00, 0x35, 0x00, 0x2E, 0x00, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00,
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}
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)
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type NetBiosInfo struct {
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GroupName string
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WorkstationService string `yaml:"WorkstationService"`
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ServerService string `yaml:"ServerService"`
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DomainName string `yaml:"DomainName"`
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DomainControllers string `yaml:"DomainControllers"`
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ComputerName string `yaml:"ComputerName"`
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OsVersion string `yaml:"OsVersion"`
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NetDomainName string `yaml:"NetBiosDomainName"`
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NetComputerName string `yaml:"NetBiosComputerName"`
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}
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func (info *NetBiosInfo) String() (output string) {
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var text string
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//ComputerName 信息比较全
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if info.ComputerName != "" {
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if !strings.Contains(info.ComputerName, ".") && info.GroupName != "" {
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text = fmt.Sprintf("%s\\%s", info.GroupName, info.ComputerName)
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} else {
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text = info.ComputerName
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}
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} else {
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//组信息
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if info.DomainName != "" {
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text += info.DomainName
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text += "\\"
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} else if info.NetDomainName != "" {
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text += info.NetDomainName
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text += "\\"
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}
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//机器名
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if info.ServerService != "" {
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text += info.ServerService
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} else if info.WorkstationService != "" {
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text += info.WorkstationService
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} else if info.NetComputerName != "" {
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text += info.NetComputerName
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}
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}
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if text == "" {
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} else if info.DomainControllers != "" {
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output = fmt.Sprintf("[+] DC:%-24s", text)
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} else {
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output = fmt.Sprintf("%-30s", text)
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}
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if info.OsVersion != "" {
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output += " " + info.OsVersion
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}
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return
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}
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func ParseNetBios(input []byte) (netbios NetBiosInfo, err error) {
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if len(input) < 57 {
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err = netbioserr
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return
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}
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data := input[57:]
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var num int
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num, err = bytetoint(input[56:57][0])
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if err != nil {
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return
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}
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var msg string
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for i := 0; i < num; i++ {
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if len(data) < 18*i+16 {
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break
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}
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name := string(data[18*i : 18*i+15])
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flag_bit := data[18*i+15 : 18*i+16]
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if GROUP_NAMES[string(flag_bit)] != "" && string(flag_bit) != "\x00" {
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msg += fmt.Sprintf("%s: %s\n", GROUP_NAMES[string(flag_bit)], name)
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} else if UNIQUE_NAMES[string(flag_bit)] != "" && string(flag_bit) != "\x00" {
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msg += fmt.Sprintf("%s: %s\n", UNIQUE_NAMES[string(flag_bit)], name)
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} else if string(flag_bit) == "\x00" || len(data) >= 18*i+18 {
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name_flags := data[18*i+16 : 18*i+18][0]
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if name_flags >= 128 {
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msg += fmt.Sprintf("%s: %s\n", GROUP_NAMES[string(flag_bit)], name)
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} else {
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msg += fmt.Sprintf("%s: %s\n", UNIQUE_NAMES[string(flag_bit)], name)
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}
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} else {
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msg += fmt.Sprintf("%s \n", name)
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}
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}
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if len(msg) == 0 {
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err = netbioserr
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return
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}
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err = yaml.Unmarshal([]byte(msg), &netbios)
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if netbios.DomainName != "" {
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netbios.GroupName = netbios.DomainName
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}
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return
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}
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func ParseNTLM(ret []byte) (netbios NetBiosInfo, err error) {
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if len(ret) < 47 {
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err = netbioserr
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return
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}
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var num1, num2 int
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num1, err = bytetoint(ret[43:44][0])
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if err != nil {
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return
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}
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num2, err = bytetoint(ret[44:45][0])
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if err != nil {
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return
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}
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length := num1 + num2*256
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if len(ret) < 48+length {
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return
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}
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os_version := ret[47+length:]
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tmp1 := bytes.ReplaceAll(os_version, []byte{0x00, 0x00}, []byte{124})
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tmp1 = bytes.ReplaceAll(tmp1, []byte{0x00}, []byte{})
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ostext := string(tmp1[:len(tmp1)-1])
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ss := strings.Split(ostext, "|")
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netbios.OsVersion = ss[0]
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start := bytes.Index(ret, []byte("NTLMSSP"))
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if len(ret) < start+45 {
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return
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}
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num1, err = bytetoint(ret[start+40 : start+41][0])
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if err != nil {
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return
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}
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num2, err = bytetoint(ret[start+41 : start+42][0])
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if err != nil {
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return
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}
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length = num1 + num2*256
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num1, err = bytetoint(ret[start+44 : start+45][0])
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if err != nil {
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return
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}
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offset, err := bytetoint(ret[start+44 : start+45][0])
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if err != nil || len(ret) < start+offset+length {
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return
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}
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var msg string
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index := start + offset
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for index < start+offset+length {
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item_type := ret[index : index+2]
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num1, err = bytetoint(ret[index+2 : index+3][0])
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if err != nil {
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continue
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}
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num2, err = bytetoint(ret[index+3 : index+4][0])
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if err != nil {
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continue
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}
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item_length := num1 + num2*256
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item_content := bytes.ReplaceAll(ret[index+4:index+4+item_length], []byte{0x00}, []byte{})
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index += 4 + item_length
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if string(item_type) == "\x07\x00" {
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//Time stamp, 不需要输出
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} else if NetBIOS_ITEM_TYPE[string(item_type)] != "" {
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msg += fmt.Sprintf("%s: %s\n", NetBIOS_ITEM_TYPE[string(item_type)], string(item_content))
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} else if string(item_type) == "\x00\x00" {
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break
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}
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}
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err = yaml.Unmarshal([]byte(msg), &netbios)
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return
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}
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func JoinNetBios(netbios1, netbios2 *NetBiosInfo) *NetBiosInfo {
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netbios1.ComputerName = netbios2.ComputerName
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netbios1.NetDomainName = netbios2.NetDomainName
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netbios1.NetComputerName = netbios2.NetComputerName
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if netbios2.DomainName != "" {
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netbios1.DomainName = netbios2.DomainName
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}
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netbios1.OsVersion = netbios2.OsVersion
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return netbios1
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}
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