็ตๆ่๐ๅฉ่ๅฉ่ๅฉๅๆฆ็ตๆ่็ตๆ่๐
ๅจๆณจ้ไธญๆพๅฐHint
https://github.com/ProbiusOfficial/Lingicrypt
ๆ็ ง่ฏดๆไนฆ่ฟ่ก่งฃ็
python3 main.py -d "็ตๆ่๐่่่่่่่่่ๅๆฆๅๆฆๅๆฆ่็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่่่ๅๆฆ็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่่่ๅๆฆ็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅๆฆๅฉๅฉๅฉ็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่่ๅฉ่็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅๆฆๅฉๅๆฆๅฉ็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉๅฉๅฉๅๆฆ่็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅๆฆ่็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅฉๅฉ็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅฉ่็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่ๅฉๅๆฆๅๆฆ็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅๆฆ่่ๅๆฆ็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่ๅๆฆ่ๅฉ็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅฉ่็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅฉ่็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆ่่็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่ๅๆฆ่่็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅๆฆ่่ๅฉ็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่ๅๆฆ่ๅๆฆ็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่ๅฉๅๆฆๅๆฆ็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆ่่็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅๆฆๅฉ็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅๆฆ่็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅฉๅๆฆ็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่ๅๆฆๅฉ่็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆ่่็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅๆฆ่่ๅๆฆ็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅฉ่็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่ๅๆฆ่ๅฉ็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅๆฆ่่่็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆ่่็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่ๅฉๅๆฆๅฉ็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅๆฆๅฉ็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅๆฆ่่ๅๆฆ็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่ๅๆฆ่ๅๆฆ็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅๆฆ่็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅฉๅๆฆ็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่ๅฉๅๆฆๅฉ็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅๆฆ่ๅฉ่็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅๆฆๅๆฆ็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่ๅฉๅๆฆๅฉ็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉ่ๅๆฆ่ๅฉ็ตๆ่๐็ตๆ่๐่่่่่่่่่ๅฉๅๆฆๅฉๅๆฆ็ตๆ่๐็ตๆ่๐่่่่่่่่ๅฉๅฉๅฉๅๆฆๅๆฆ็ตๆ่๐"
ๅพๅฐFlag
NSSCTF{310b8d00-c7eb-432f-80d6-a48e32a95ad2}
Cropping
็ฌฌไธๅฑๆฏไผชๅ ๅฏ
็ฌฌไบๅฑๅฐๅ็ผฉๅ ่งฃๅๅๆผๆฅๆๆๅพ็
montage *.png -tile 10x10 -geometry +0+0 out.png
ๆซ็ ๅพๅฐFlag
LitCTF{e7c3f4b2-9a6f-4d3f-9f98-0b3db91c2a12}
ๆถๅคฑ็ๆๅญ
้ผ ๆ ๆต้ๅๆ๏ผๅพๅฐไปฅไธ่ฝจ่ฟน
ไธญ้ดๆไธคไฝ็ไธๆธ ๏ผ่ฟ่กไธไธชๆฉ็ ็็ ด๏ผๅพๅฐ่งฃๅๅฏ็
868F-83BD-FF
่งฃๅๅพๅฐtxt๏ผๅ็ฐ้้ขๆๅพๅคไธๅฏ่งๅญ็ฌฆ๏ผๆๅๅๅคง่ดๅฆไธ๏ผ่ฟ้ๅฏไปฅไฝฟ็จSublime Text็้้ ็ฌฆๆ็ดขf3 a0...... Find Allๅๅคๅถๆๅ๏ผ
f3 a0 84 bc
f3 a0 85 99
f3 a0 85 a4
f3 a0 84 b3
f3 a0 85 84
f3 a0 84 b6
f3 a0 85 ab
f3 a0 84 a3
ๅฏไปฅๅไธบ3้จๅ๏ผ็ฌฌไธ้จๅๆฏไธๅฏ่งๅญ็ฌฆๅคด้จ๏ผf3 a0๏ผ๏ผ็ฌฌไบ้จๅๆฏๆ ่ฏไฝ๏ผ84/85๏ผ๏ผ็ฌฌไธ้จๅๆฏๆฐๆฎใ
็ๆตๅผๅคดไธบLitctf๏ผ้ฃไนๅฏไปฅๆ นๆฎASCII่ฟ่กๆจๆญ๏ผ้่ฆๆ นๆฎๆ ่ฏไฝๅฏนๆฐๆฎ่ฟ่กๅค็๏ผ็ป่ฟๆฏ่พ84้่ฆๅฏนๆฐๆฎ-112๏ผ85้่ฆๅฏนๆฐๆฎ-48๏ผ็ผๅไปฃ็
FLAG=[]
with open ("Dic.txt") as file:
for line in file:
line = line.strip()
print(f'=================================\n{line}')
parts = line.split()
part_1 = parts[2]
part_2 = parts[3]
print(f'FLAG:{part_1}')
if part_1 == "84":
print(f'ASCII:{int(part_2, 16)}')
print(f'ASCII_end:{int(part_2, 16)-112}')
char = chr(int(part_2, 16)-112)
if part_1 == "85":
print(f'ASCII:{int(part_2, 16)}')
print(f'ASCII_end:{int(part_2, 16)-48}')
char = chr(int(part_2, 16)-48)
print(f'Char:{char}')
FLAG.append(char)
print(''.join(FLAG))
ๅพๅฐFlag
LitCTF{39553317-df30-4951-8aad-fcaf3028ca9d}
ๆดๅฆๆดๅฆ
ๆพๅฐไธไบๅฎไปฃ็
Sub hgf()
Sub CustomEncode()
Dim inputString As String
inputString = "*******"
Dim encodedString As String
encodedString = CustomEncode(inputString)
MsgBox "่ชๅฎไน็ผ็ ็ปๆไธบ: " & vbCrLf & encodedString
End Sub
Function CustomEncode(inputString As String) As String
Dim charSet As String
charSet = "*******************"
Dim byteArray() As Byte
byteArray = StrConv(inputString, vbFromUnicode)
Dim encodedString As String
encodedString = ""
Dim i As Integer
Dim n As Long
For i = 1 To LenB(byteArray) Step 3
n = 0
n = (n Or (ByteToInt(MidB(byteArray, i, 1)) << 16))
If i + 1 <= LenB(byteArray) Then
n = (n Or (ByteToInt(MidB(byteArray, i + 1, 1)) << 8))
End If
If i + 2 <= LenB(byteArray) Then
n = (n Or ByteToInt(MidB(byteArray, i + 2, 1)))
End If
encodedString = encodedString & Mid(charSet, (n >> 18) + 1, 1)
encodedString = encodedString & Mid(charSet, ((n >> 12) And &H3F) + 1, 1)
If (i + 1) <= LenB(byteArray) Then
encodedString = encodedString & Mid(charSet, ((n >> 6) And &H3F) + 1, 1)
Else
encodedString = encodedString & "="
End If
If (i + 2) <= LenB(byteArray) Then
encodedString = encodedString & Mid(charSet, (n And &H3F) + 1, 1)
Else
encodedString = encodedString & "="
End If
Next i
CustomEncode = encodedString
End Function
Function ByteToInt(byteVal As Byte) As Long
ByteToInt = CLng(byteVal)
End Function
End Function
"5uESz7on4R8eyC//"
้่ฟๅๆๅคง่ดๆฏไธไธช่ชๅฎไน็ ่กจ็base็ณปๅ็็ผ็ ่ฟ็จ๏ผไฝๆฏๆไปฌ้่ฆๆพๅฐ็ ่กจ๏ผๅฐppt่งฃๅๅๅจslides็ฎๅฝไธๆพๅฐxmlๆไปถ๏ผ้้ข่ฎฐๅฝไบ็ฟป้กตๆถ้ด๏ผๅไธบ1000ๅ0ใๆ นๆฎ้ข็ฎๅๅญ๏ผๆๅ็ฟป้กตๆถ้ด๏ผ1000่ฎฐไธบ1๏ผ0่ฎฐไธบ0ใ
import os
import re
def extract_advTm_binary_string(max_slide=456):
result = ""
for i in range(1, max_slide + 1):
filename = f"slide{i}.xml"
if os.path.isfile(filename):
with open(filename, 'r', encoding='utf-8', errors='ignore') as file:
match = re.search(r'advTm="(.*?)"', file.read())
if match:
result += "1" if match.group(1) == "1000" else "0" if match.group(1) == "0" else ""
return result
binary_string = extract_advTm_binary_string()
print(binary_string)
ๅพๅฐ01ๅญ็ฌฆไธฒ
10000111000101110010011000111110111111011010110101110101100111011011011101100110101110010101110100111001111100101110001110000110101100111001011001101111010110111100001011110101111001111100001101100110101011010010110011011000101011110001101110000011000011011100101011100110110011001001011110101011010011001000110011111001101000100100000111000101010101110010110101001010011100111110100101010001101000011011111001001110100010001110111000011001001100010101111
่งๅฏๅ็ฐ01ๅญ็ฌฆไธฒ้ฟๅบฆไธบ455๏ผๅฆๆๅไธบ7bitไธ็ป๏ผๅๅๅฅฝๅฏไปฅ็ปๆ65็ป๏ผ็ผๅไปฃ็ ่ฟ่ก่ฝฌ็
def binary_to_ascii_seven_bits(binary_str):
return ''.join(
chr(int(binary_str[i:i+7], 2))
for i in range(0, len(binary_str), 7)
if len(binary_str[i:i+7]) == 7
)
binary_input = "10000111000101110010011000111110111111011010110101110101100111011011011101100110101110010101110100111001111100101110001110000110101100111001011001101111010110111100001011110101111001111100001101100110101011010010110011011000101011110001101110000011000011011100101011100110110011001001011110101011010011001000110011111001101000100100000111000101010101110010110101001010011100111110100101010001101000011011111001001110100010001110111000011001001100010101111"
ascii_output = binary_to_ascii_seven_bits(binary_input)
print(ascii_output)
ๅพๅฐ็ปๆๅฆไธ๏ผ้ๅธธๆ ่ด็Base็ ่กจ
CEdcwvZuNmlkJtsrqaV93=7Bzyx654YXWFp0n+MLKjiHgfDAbUeTSORQPoIhG821/
ๅๅฐไนๅ็ๅฎ๏ผๅๆ้ป่พ่ฟ่ก่งฃ็
def custom_decode(encoded_string):
char_set = "CEdcwvZuNmlkJtsrqaV93=7Bzyx654YXWFp0n+MLKjiHgfDAbUeTSORQPoIhG821/"
decode_map = {char: i for i, char in enumerate(char_set)}
encoded_string = encoded_string.rstrip("=")
byte_array = bytearray()
i = 0
while i < len(encoded_string):
sextets = [decode_map.get(encoded_string[i + j], 0) if i + j < len(encoded_string) else 0 for j in range(4)]
n = (sextets[0] << 18) | (sextets[1] << 12) | (sextets[2] << 6) | sextets[3]
byte_array.append((n >> 16) & 0xFF)
if i + 2 < len(encoded_string):
byte_array.append((n >> 8) & 0xFF)
if i + 3 < len(encoded_string):
byte_array.append(n & 0xFF)
i += 4
return byte_array.decode('utf-8', errors='replace')
encoded_str = "5uESz7on4R8eyC//"
original_str = custom_decode(encoded_str)
print(original_str)
ๅพๅฐ็ปๆๅฆไธ
pptandword@
ๅ้ขๅจ่งฃๅppt็่ฟ็จไธญ่ฟๅจmedia็ฎๅฝไธๅ็ฐไบไธคๅผ ๅพ็๏ผๅ ถไธญไธๅผ ็ๅคงๅฐ็ธๅฏนๆฅ่ฏด่พๅคงไธไบ๏ผๆซๅฐพๅ็ฐbyteๅฝขๅผreverseๅ็zip็ๅๅ ญ่ฟๅถๆฐๆฎใไฝฟ็จๅๆๅพๅฐ็ๅฏ็ ่ฟ่ก่งฃๅ๏ผ่ฟ้ๅฏ็ ้่ฆๅปๆๆๅ็@๏ผ
่งฃๅๅๅพๅฐdocxๆไปถ๏ผๆนๅๅญไฝ้ข่ฒๅพๅฐFlag
LitCTF{cfbff0d1-9345-5685-968c-48ce8b15ae17}
ๅๆฅHidden Wordๆฏไธไธชๅ็ฌ็้ๅQAQ๏ผ็ฏๅปไบ
https://hidden-word.top/