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This commit is contained in:
cato447
2025-06-06 02:50:04 +02:00
parent e887de976a
commit 6e6ee357b8
8848 changed files with 2089898 additions and 9 deletions
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2025/cscg/rev/grid_wave/GRID_WAVE_4X8_LangleyMicros.vr Executable file
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00000000 <.text>:
0: 0c 94 34 00 jmp 0x68 ; 0x68
4: 0c 94 49 00 jmp 0x92 ; 0x92
8: 0c 94 49 00 jmp 0x92 ; 0x92
c: 0c 94 49 00 jmp 0x92 ; 0x92
10: 0c 94 49 00 jmp 0x92 ; 0x92
14: 0c 94 49 00 jmp 0x92 ; 0x92
18: 0c 94 49 00 jmp 0x92 ; 0x92
1c: 0c 94 49 00 jmp 0x92 ; 0x92
20: 0c 94 49 00 jmp 0x92 ; 0x92
24: 0c 94 49 00 jmp 0x92 ; 0x92
28: 0c 94 49 00 jmp 0x92 ; 0x92
2c: 0c 94 49 00 jmp 0x92 ; 0x92
30: 0c 94 49 00 jmp 0x92 ; 0x92
34: 0c 94 49 00 jmp 0x92 ; 0x92
38: 0c 94 49 00 jmp 0x92 ; 0x92
3c: 0c 94 49 00 jmp 0x92 ; 0x92
40: 0c 94 49 00 jmp 0x92 ; 0x92
44: 0c 94 49 00 jmp 0x92 ; 0x92
48: 0c 94 49 00 jmp 0x92 ; 0x92
4c: 0c 94 49 00 jmp 0x92 ; 0x92
50: 0c 94 49 00 jmp 0x92 ; 0x92
54: 0c 94 49 00 jmp 0x92 ; 0x92
58: 0c 94 49 00 jmp 0x92 ; 0x92
5c: 0c 94 49 00 jmp 0x92 ; 0x92
60: 0c 94 49 00 jmp 0x92 ; 0x92
64: 0c 94 49 00 jmp 0x92 ; 0x92
68: 11 24 eor r1, r1
6a: 1f be out 0x3f, r1 ; 63
6c: cf ef ldi r28, 0xFF ; 255
6e: d8 e0 ldi r29, 0x08 ; 8
70: de bf out 0x3e, r29 ; 62
72: cd bf out 0x3d, r28 ; 61
74: 12 e0 ldi r17, 0x02 ; 2
76: a0 e0 ldi r26, 0x00 ; 0
78: b1 e0 ldi r27, 0x01 ; 1
7a: e2 ec ldi r30, 0xC2 ; 194
7c: f8 e0 ldi r31, 0x08 ; 8
7e: 02 c0 rjmp .+4 ; 0x84
80: 05 90 lpm r0, Z+
82: 0d 92 st X+, r0
84: a4 3a cpi r26, 0xA4 ; 164
86: b1 07 cpc r27, r17
88: d9 f7 brne .-10 ; 0x80
8a: 0e 94 e6 03 call 0x7cc ; 0x7cc
8e: 0c 94 5f 04 jmp 0x8be ; 0x8be
92: 0c 94 00 00 jmp 0 ; 0x0
96: 10 92 c5 00 sts 0x00C5, r1 ; 0x8000c5
9a: 87 e6 ldi r24, 0x67 ; 103
9c: 80 93 c4 00 sts 0x00C4, r24 ; 0x8000c4
a0: 88 e1 ldi r24, 0x18 ; 24

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<?xml version="1.0" encoding="UTF-8"?>
<FILE_INFO>
<BASIC_INFO>
<STATE NAME="CONTENT_TYPE" TYPE="string" VALUE="Program" />
<STATE NAME="PARENT" TYPE="string" VALUE="/" />
<STATE NAME="FILE_ID" TYPE="string" VALUE="c0a8073ffb8121240967914416" />
<STATE NAME="FILE_TYPE" TYPE="int" VALUE="0" />
<STATE NAME="READ_ONLY" TYPE="boolean" VALUE="false" />
<STATE NAME="NAME" TYPE="string" VALUE="blogpost.bin" />
</BASIC_INFO>
</FILE_INFO>

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2025/cscg/rev/grid_wave/gridwave.rep/idata/00/00000005.prp Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<FILE_INFO>
<BASIC_INFO>
<STATE NAME="CONTENT_TYPE" TYPE="string" VALUE="Program" />
<STATE NAME="PARENT" TYPE="string" VALUE="/" />
<STATE NAME="FILE_ID" TYPE="string" VALUE="c0a8073dcc793952601231625" />
<STATE NAME="FILE_TYPE" TYPE="int" VALUE="0" />
<STATE NAME="READ_ONLY" TYPE="boolean" VALUE="false" />
<STATE NAME="NAME" TYPE="string" VALUE="GRID_WAVE_4X8_LangleyMicros.vr" />
</BASIC_INFO>
</FILE_INFO>

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VERSION=1
/
00000005:GRID_WAVE_4X8_LangleyMicros.vr:c0a8073dcc793952601231625
00000004:blogpost.bin:c0a8073ffb8121240967914416
NEXT-ID:6
MD5:d41d8cd98f00b204e9800998ecf8427e

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2025/cscg/rev/grid_wave/gridwave.rep/idata/~index.dat Normal file
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VERSION=1
/
00000005:GRID_WAVE_4X8_LangleyMicros.vr:c0a8073dcc793952601231625
00000004:blogpost.bin:c0a8073ffb8121240967914416
NEXT-ID:6
MD5:d41d8cd98f00b204e9800998ecf8427e

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2025/cscg/rev/grid_wave/gridwave.rep/project.prp Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<FILE_INFO>
<BASIC_INFO>
<STATE NAME="OWNER" TYPE="string" VALUE="cato" />
</BASIC_INFO>
</FILE_INFO>

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<?xml version="1.0" encoding="UTF-8"?>
<PROJECT>
<PROJECT_DATA_XML_NAME NAME="DISPLAY_DATA">
<SAVE_STATE />
</PROJECT_DATA_XML_NAME>
<TOOL_MANAGER ACTIVE_WORKSPACE="Workspace">
<WORKSPACE NAME="Workspace" ACTIVE="true" />
</TOOL_MANAGER>
</PROJECT>

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2025/cscg/rev/grid_wave/gridwave.rep/user/00/00000002.prp Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<FILE_INFO>
<BASIC_INFO>
<STATE NAME="CONTENT_TYPE" TYPE="string" VALUE="ProgramUserData" />
<STATE NAME="PARENT" TYPE="string" VALUE="/" />
<STATE NAME="FILE_ID" TYPE="string" VALUE="c0a8073ffc5121438189679041" />
<STATE NAME="FILE_TYPE" TYPE="int" VALUE="0" />
<STATE NAME="READ_ONLY" TYPE="boolean" VALUE="false" />
<STATE NAME="NAME" TYPE="string" VALUE="udf_c0a8073ffb8121240967914416" />
</BASIC_INFO>
</FILE_INFO>

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<?xml version="1.0" encoding="UTF-8"?>
<FILE_INFO>
<BASIC_INFO>
<STATE NAME="CONTENT_TYPE" TYPE="string" VALUE="ProgramUserData" />
<STATE NAME="PARENT" TYPE="string" VALUE="/" />
<STATE NAME="FILE_ID" TYPE="string" VALUE="c0a8073e6d1103660918149750" />
<STATE NAME="FILE_TYPE" TYPE="int" VALUE="0" />
<STATE NAME="READ_ONLY" TYPE="boolean" VALUE="false" />
<STATE NAME="NAME" TYPE="string" VALUE="udf_c0a8073dcc793952601231625" />
</BASIC_INFO>
</FILE_INFO>

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VERSION=1
/
00000002:udf_c0a8073ffb8121240967914416:c0a8073ffc5121438189679041
NEXT-ID:4
MD5:d41d8cd98f00b204e9800998ecf8427e

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2025/cscg/rev/grid_wave/gridwave.rep/user/~index.dat Normal file
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VERSION=1
/
00000004:udf_c0a8073dcc793952601231625:c0a8073e6d1103660918149750
00000002:udf_c0a8073ffb8121240967914416:c0a8073ffc5121438189679041
NEXT-ID:5
MD5:d41d8cd98f00b204e9800998ecf8427e

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IADD:00000004:/udf_c0a8073dcc793952601231625
IDSET:/udf_c0a8073dcc793952601231625:c0a8073e6d1103660918149750

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VERSION=1
/
NEXT-ID:0
MD5:d41d8cd98f00b204e9800998ecf8427e

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VERSION=1
/
NEXT-ID:0
MD5:d41d8cd98f00b204e9800998ecf8427e

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# run via docker compose :)
FROM ubuntu:22.04
RUN apt-get update
RUN apt-get -y install socat
RUN useradd -d /home/ctf/ -m -p ctf -s /bin/bash ctf
RUN echo "ctf:ctf" | chpasswd
WORKDIR /home/ctf
COPY rev1 .
COPY flag.txt .
USER ctf
CMD socat -ddd TCP4-LISTEN:1024,fork,reuseaddr exec:./rev1,pty,echo=0,raw,iexten=0

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CSCG{testflag}

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# run via docker compose :)
FROM ubuntu:22.04
RUN apt-get update
RUN apt-get -y install socat
RUN useradd -d /home/ctf/ -m -p ctf -s /bin/bash ctf
RUN echo "ctf:ctf" | chpasswd
WORKDIR /home/ctf
COPY rev2 .
COPY flag.txt .
USER ctf
CMD socat -ddd TCP4-LISTEN:1024,fork,reuseaddr exec:./rev2,pty,echo=0,raw,iexten=0

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CSCG{testflag}

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password = b"\x02\xea\x02\xe8\xfc\xfd\xbd\xfd\xf2\xec\xe8\xfd\xfb\xea\xf7\xfc\xef\xb9\xfb\xf6\xea\xfd\xf2\xf8\xf7\x00"
input = bytes((byte + 0x77) % 256 for byte in password)
with open("password.bin", "wb") as f:
f.write(input)

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yay_st4tic_transf0rmationw

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CSCG{testflag}

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password = b"b9yPw:MwqcoHuFz^r-o*{>I\020Y"
def reverse_transformation(input_bytes):
input_bytes = bytearray(input_bytes) # Convert to mutable bytearray
for i in range(len(input_bytes)):
input_bytes[i] = (input_bytes[i] + 2) % 256 # Step 1: Add 2
input_bytes[i] ^= (i + 0xa) # Step 2: XOR with (i + 0xa)
return bytes(input_bytes) # Convert back to bytes
real_password = reverse_transformation(password)
with open("password.bin", "wb") as f:
f.write(real_password)

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n0w_w3_have_a_dyn4m1c_k3y

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