2023楚慧杯
Easy_zip
解压附件名字为4096.zip猜测总共有4096个压缩包
import zipfile
import os
def decompress_zip(archive_file):
with zipfile.ZipFile(archive_file, 'r') as zip_ref:
zip_ref.extractall(path="tmp/")
os.remove(archive_file)
os.system("mv tmp/* .")
os.rmdir("tmp")
if __name__ == "__main__":
for i in range(4096,0,-1):
filename = f"{i}.zip"
decompress_zip(filename)
print(f"[+] {filename} 解压成功 =======>")

文本内容
+-+++-++ +-+++++- +-+-++-- +-++++-- +-+-+-++ +-+++--+ +----+-- ++--+++- ++--++++ +--+++-- ++--+-+- ++---+++ ++--++-+ ++--+-+- ++---+++ +--+++-- +--+++-- +--++--+ ++--+++- +--++-+- ++--+--- +--+++-- ++--+--+ ++--++-- ++--+++- +--++-+- ++--+-+- ++---++- ++--+++- ++--+++- +--++-+- +--++-++ ++--+--+ +--++++- +--+++-- +--+++-- ++--+-++ +--++-+- +--++-++ +-----+-
替换


DASCTF{10c58258ccf1e7c631e5911ed6acc4ed}
easy取证
找到密钥:H7Qmw_X+WB6BXDXa

filescan扫出来一个文档
dump下来

snow隐写

DASCTF{f891eff370a2cbefec49d2a577b552d3}

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