RSI 2

将文件放进随波逐流里面，用binwalk分离，发现一个压缩包

将压缩包里面的文件提取出来，打开文件发现大量数据

借用大佬的脚本，将数据转成图片

点击查看代码

import matplotlib.pyplot as pltdef validate_coord(coord):length = len(coord) == 4 and int(coord[0]) > 0if length:x = 0 <= float(coord[1]) <= 512y = 0 <= float(coord[2]) <= 384return x and yreturn Falsewith open("_big_b.osr.extracted/7F") as replay_raw:coords_raw = replay_raw.readline().split(',')coords_raw = [tuple(x.split('|')) for x in coords_raw]
coords_raw = [t for t in coords_raw if validate_coord(t)]coords = []
for t in coords_raw:coords.append((int(t[0]), float(t[1]), float(t[2]), int(t[3])))x, y = [p[1] for p in coords], [-p[2] for p in coords]plt.scatter(x, y)
plt.show()

在python运行代码，获得flag，UMDCTF{CL1CK_TO_THE_B3AT}