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Investigative Reversing 1

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This commit is contained in:
Maxime Vorwerk
2024-06-09 19:41:42 +02:00
parent 466fd00681
commit 278bcedb4d
21 changed files with 97 additions and 0 deletions
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investigative_reversing_0/.ghidra.test.lock~~ Normal file
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investigative_reversing_0/flag.txt Normal file
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abcdefghijklmnopqrstuvwxyz

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investigative_reversing_0/investigative_reversing.gpr Normal file
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investigative_reversing_0/investigative_reversing.rep/idata/00/00000000.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="c0a8b293f6a9108107286778000" />
<STATE NAME="FILE_TYPE" TYPE="int" VALUE="0" />
<STATE NAME="READ_ONLY" TYPE="boolean" VALUE="false" />
<STATE NAME="NAME" TYPE="string" VALUE="mystery" />
</BASIC_INFO>
</FILE_INFO>

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investigative_reversing_0/investigative_reversing.rep/idata/~index.bak Normal file
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VERSION=1
/
00000000:mystery:c0a8b293f6a9108107286778000
NEXT-ID:1
MD5:d41d8cd98f00b204e9800998ecf8427e

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investigative_reversing_0/investigative_reversing.rep/idata/~index.dat Normal file
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VERSION=1
/
00000000:mystery:c0a8b293f6a9108107286778000
NEXT-ID:1
MD5:d41d8cd98f00b204e9800998ecf8427e

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investigative_reversing_0/investigative_reversing.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="MaximeVorwerk" />
</BASIC_INFO>
</FILE_INFO>

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investigative_reversing_0/investigative_reversing.rep/projectState Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<PROJECT>
<PROJECT_DATA_XML_NAME NAME="DISPLAY_DATA">
<SAVE_STATE>
<ARRAY NAME="EXPANDED_PATHS" TYPE="string">
<A VALUE="investigative_reversing:" />
</ARRAY>
<STATE NAME="SHOW_TABLE" TYPE="boolean" VALUE="false" />
</SAVE_STATE>
</PROJECT_DATA_XML_NAME>
<TOOL_MANAGER ACTIVE_WORKSPACE="Workspace">
<WORKSPACE NAME="Workspace" ACTIVE="true" />
</TOOL_MANAGER>
</PROJECT>

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investigative_reversing_0/investigative_reversing.rep/user/00/00000000.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="c0a8b293fa63110170551669400" />
<STATE NAME="FILE_TYPE" TYPE="int" VALUE="0" />
<STATE NAME="READ_ONLY" TYPE="boolean" VALUE="false" />
<STATE NAME="NAME" TYPE="string" VALUE="udf_c0a8b293f6a9108107286778000" />
</BASIC_INFO>
</FILE_INFO>

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investigative_reversing_0/investigative_reversing.rep/user/~index.bak Normal file
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VERSION=1
/
NEXT-ID:0
MD5:d41d8cd98f00b204e9800998ecf8427e

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investigative_reversing_0/investigative_reversing.rep/user/~index.dat Normal file
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VERSION=1
/
00000000:udf_c0a8b293f6a9108107286778000:c0a8b293fa63110170551669400
NEXT-ID:1
MD5:d41d8cd98f00b204e9800998ecf8427e

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investigative_reversing_0/investigative_reversing.rep/user/~journal.bak Normal file
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IADD:00000000:/udf_c0a8b293f6a9108107286778000
IDSET:/udf_c0a8b293f6a9108107286778000:c0a8b293fa63110170551669400

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investigative_reversing_0/investigative_reversing.rep/versioned/~index.bak Normal file
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VERSION=1
/
NEXT-ID:0
MD5:d41d8cd98f00b204e9800998ecf8427e

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investigative_reversing_0/investigative_reversing.rep/versioned/~index.dat Normal file
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VERSION=1
/
NEXT-ID:0
MD5:d41d8cd98f00b204e9800998ecf8427e

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investigative_reversing_0/mystery Executable file
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investigative_reversing_0/sol.py Executable file
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#!/home/maxime/.pyvenv/bin/python3
with open("mystery.png", 'rb') as f:
image = f.read()
l = len(image)
flag_start = l-26
for i in range(flag_start, l):
print(chr(image[i]), end='')
print()
for i in range(flag_start, flag_start + 6):
print(chr(image[i]), end='')
for i in range(flag_start + 6, flag_start + 15):
print(chr(image[i] - 5), end ='')
print(chr(image[flag_start + 15] + 3), end='')
for i in range(flag_start + 16, flag_start + 26):
print(chr(image[i]), end='')
print()