Bugku-MISC-插画

 

下载得到一个zip，用WinRAR打开时发现有注释

 

注释：RnJlZV9GaWxlX0NhbW91ZmxhZ2UsIOmimOebruWlveWDj+aYr+aMuumHjeimgeeahOagt+WtkC4u

明显是base64，解码得到：Free_File_Camouflage, 题目好像是挺重要的样子..

百度发现这是一款隐写工具，下载地址：http://www.softpedia.com/dyn-postdownload.php?p=196809&t=4&i=1

 

得到一个txt文件

length q caller lc and print chr ord uc q ge log and print chr ord q eval ge and print chr ord q ge log and print chr ord q qr eq and print chr ord q my alarm and print chr ord qq q q and print chr ord q msgctl m and print chr ord q sin s and print chr ord qw q ne q and print chr ord qw q gt q and print chr ord q else and print chr ord q ge log and print chr ord q q q and print chr ord q lt eval and print chr ord q tie lt and print chr ord qw q m q and print chr ord q ge log and print chr ord qq q q and print chr ord q my m and print chr ord q xor x and print chr ord qw q use q and print chr ord qq q q and print chr ord q map m and print chr ord q oct do and print chr ord q oct no and print chr ord q ref or and print chr ord qw q sin q and print chr ord qw q sin q and print chr ord q q q and print chr ord q each le and print chr ord qq q q and print chr ord q qw q and print chr ord q ref or and print chr ord qw q bless q and print chr ord q msgctl m and print chr ord q tie gt and print chr ord q lt eval and print chr ord q ge log and print chr oct oct ord uc qw q bind q and print chr ord q q q and print chr ord q my m and print chr ord q local and print chr ord qw q use q and print chr ord q q q and print chr ord q else and print chr ord q ref or and print chr ord q map m and print chr ord q eval ge and print chr ord q ge log and print chr ord q q q and print chr ord q lt eval and print chr ord q qr q and print chr ord q each ne and print chr ord q oct no and print chr ord qw q keys q and print chr ord qw q sin q and print chr oct oct ord uc qw q fcntl q and print chr ord q q eq and print chr ord uc q lt eval and print chr ord q qr q and print chr ord q each le and print chr ord q lc eval and print chr ord qw q keys q and print chr ord qw q s q and print chr ord q q q and print chr ord q stat s and print chr ord q chr uc and print chr ord q each ne and print chr ord q lt eval and print chr ord qq q q and print chr ord q local and print chr ord q gt log and print chr ord q chop uc and print chr ord q ge log and print chr ord q qr eq and print chr ord qw q s q and print chr ord q q q and print chr ord q lc eval and print chr ord q map m and print chr ord qw q ne q and print chr ord qq q q and print chr ord q map m and print chr ord q lc eval and print chr ord q oct no and print chr ord q ref or and print chr ord qw q s q and print chr ord q msgctl m and print chr oct oct ord uc qw q for q and print chr ord q q q and print chr ord uc q sin s and print chr ord qw q fcntl q and print chr ord q q q and print chr ord q my alarm and print chr ord q local and print chr ord q dump and and print chr ord q q eq and print chr ord qw q do q and print chr ord q pop and print chr ord qw q ne q and print chr oct oct oct ord uc qw q gt q and print chr ord q lt eval and print chr ord q q eq and print chr ord q else and print chr ord q tie lt and print chr ord qw  or and print chr ord q map m and print chr oct oct ord uc qw q bless q and print chr ord q q eq and print chr ord qw q fcntl q and print chr ord q sin s and print chr ord qw q no q and print chr ord qw q die q and print chr ord q q eq and print chr ord q local and print chr ord qw q uc q and print chr ord q gt log and print chr ord q q q and print chr ord q qw q and print chr ord q chr uc and print chr ord q map m and print chr ord q lt eval and print chr ord qq q q and print chr ord qw q s q and print chr ord q pop and print chr ord qw q fork q and print chr ord q stat s and print chr ord q qw q and print chr ord q map m and print chr ord q qr q and print chr ord q ge log and print chr ord q q q and print chr ord q lc eval and print chr ord q map m and print chr ord qw q not q and print chr ord q q eq and print chr ord q chr lc and print chr ord q ref or and print chr ord qw q le q and print chr ord q open no and print chr ord q q q and print chr ord q my m and print chr ord q pop and print chr ord q dump and and print chr ord qq q q and print chr ord q oct no and print chr ord q xor x and print chr ord q eval ge and print chr ord q ge log and print chr ord q qr eq and print chr ord q q eq and print chr ord q stat s and print chr ord q chr lc and print chr ord q ne sin and print chr ord q rmdir and print chr oct oct ord uc qw q for qprint chr ord q lc eval and print chr ord qw q keys q and print chr ord qw q s q and print chr ord q q q and print chr ord q stat s and print chr ord q chr uc and print chr ord q each ne and print chr ord q lt eval and print chr ord qq q q and print chr ord q local and print chr ord q gt log and print chr ord q chop uc and print chr ord q ge log and print chr ord q qr eq and print chr ord qw q s q and print chr ord q q q and print chr ord q lc eval and print chr ord q map m and print chr ord qw q ne q and print chr ord qq q q and print chr ord q map m and print chr ord q lc eval and print chr ord q oct no and print chr ord q ref or and print chr ord qw q s q and print chr ord q msgctl m and print chr oct oct ord uc qw q for q and print chr ord q q q and print chr ord uc q sin s and print chr ord qw q fcntl q and print chr ord q q q and print chr ord q my alarm and print chr ord q local and print chr ord q dump and and print chr ord q q eq and print chr ord qw q do q and print chr ord q pop and print chr ord qw q ne q and print chr oct oct oct ord uc qw q gt q and print chr ord q lt eval and print chr ord q q eq and print chr ord q else and print chr ord q tie lt and print chr ord qw q kill q and print chr ord q ref or and print chr ord q q eq and print chr ord q lt eval and print chr ord q chr lc and print chr ord q ref or and print chr ord q q q and print chr ord q tie gt and print chr ord qw q die q and print chr ord q ref or and print chr ord q map m and print chr oct oct ord uc qw q bless q and print chr ord q q eq and print chr ord qw q fcntl q and print chr ord q sin s and print chr ord qw q no q and print chr ord qw q die q and print chr ord q q eq and print chr ord q local and print chr ord qw q uc q and print chr ord q gt log and print chr ord q q q and print chr ord q qw q and print chr ord q chr uc and print chr ord q map m and print chr ord q lt eval and print chr ord qq q q and print chr ord qw q s q and print chr ord q pop and print chr ord qw q fork q and print chr ord q stat s and print chr ord q qw q and print chr ord q map m and print chr ord q qr q and print chr ord q ge log and print chr ord q q q and print chr ord q lc eval and print chr ord q map m and print chr ord qw q not q and print chr ord q q eq and print chr ord q chr lc and print chr ord q ref or and print chr ord qw q le q and print chr ord q open no and print chr ord q q q and print chr ord q my m and print chr ord q pop and print chr ord q dump and and print chr ord qq q q and print chr ord q oct no and print chr ord q xor x and print chr ord q eval ge and print chr ord q ge log and print chr ord q qr eq and print chr ord q q eq and print chr ord q stat s and print chr ord q chr lc and print chr ord q ne sin and print chr ord q rmdir and print chr oct oct ord uc qw q for q  
#!/usr/bin/perl -w
length q rmdir and print chr oct hex ord uc q stat s and print chr ord qw q m q and print chr ord qw q x q and print chr ord q chr uc and print chr oct hex ord uc q lt eval and print chr oct oct ord uc qw q m q and print chr ord q stat s and print chr oct oct ord uc qw q m q and print chr ord q map m and print chr oct ord q mkdir m and print chr ord uc qw q flock q and print chr oct oct oct ord q open do and print chr ord uc q qx q and print chr length q x rename sethostent srand pack pipe setpwent syscall else eq split sleep endservent qw require symlink ne keys ord require x and print chr ord uc qw q for q and print chr length q q splice srand getservbyname setnetent ne reset endprotoent foreach scalar rewinddir cos setnetent not else getprotobyname q and print chr ord uc q exp le and print chr hex ord q m alarm and print chr ord uc qw q y q and print chr ord qw q x q and print chr ord uc q my m and print chr ord uc q qw eq and print chr ord q oct do and print chr oct oct oct ord q mkdir m and print chr ord qw q fork q and print chr ord uc q eq ne and print chr oct oct ord q eq le and print chr oct oct ord q eq le 
length q caller lc and print chr ord uc q ge log and print chr ord q eval ge and print chr ord q ge log and print chr ord q qr eq and print chr ord q my alarm and print chr ord qq q q and print chr ord q msgctl m and print chr ord q sin s and print chr ord qw q ne q and print chr ord qw q gt q and print chr ord q else and print chr ord q ge log and print chr ord q q q and print chr ord q lt eval and print chr ord q tie lt and print chr ord qw q m q and print chr ord q ge log and print chr ord qq q q and print chr ord q my m and print chr ord q xor x and print chr ord qw q use q and print chr ord qq q q and print chr ord q map m and print chr ord q oct do and print chr ord q oct no and print chr ord q ref or and print chr ord qw q sin q and print chr ord qw q sin q and print chr ord q q q and print chr ord q each le and print chr ord qq q q and print chr ord q qw q and print chr ord q ref or and print chr ord qw q bless q and print chr ord q msgctl m and print chr ord q tie gt and print chr ord q lt eval and print chr ord q ge log and print chr oct oct ord uc qw q bind q and print chr ord q q q and print chr ord q my m and print chr ord q local and print chr ord qw q use q and print chr ord q q q and print chr ord q else and print chr ord q ref or and print chr ord q map m and print chr ord q eval ge and print chr ord q ge log and print chr ord q q q and print chr ord q lt eval and print chr ord q qr q and print chr ord q each ne and print chr ord q oct no and print chr ord qw q keys q and print chr ord qw q sin q and print chr oct oct ord uc qw q fcntl q and print chr ord q q eq and print chr ord uc q lt eval and print chr ord q qr q and print chr ord q each le and print chr ord q lc eval and print chr ord qw q keys q and print chr ord qw q s q and print chr ord q q q and print chr ord q stat s and print chr ord q chr uc and print chr ord q each ne and print chr ord q lt eval and print chr ord qq q q and print chr ord q local and print chr ord q gt log and print chr ord q chop uc and print chr ord q ge log and print chr ord q qr eq and print chr ord qw q s q and print chr ord q q q and print chr ord q lc eval and print chr ord q map m and print chr ord qw q ne q and print chr ord qq q q and print chr ord q map m and print chr ord q lc eval and print chr ord q oct no and print chr ord q ref or and print chr ord qw q s q and print chr ord q msgctl m and print chr oct oct ord uc qw q for q and print chr ord q q q and print chr ord uc q sin s and print chr ord qw q fcntl q and print chr ord q q q and print chr ord q my alarm and print chr ord q local and print chr ord q dump and and print chr ord q q eq and print chr ord qw q do q and print chr ord q pop and print chr ord qw q ne q and print chr oct oct oct ord uc qw q gt q and print chr ord q lt eval and print chr ord q q eq and print chr ord q else and print chr ord q tie lt and print chr ord qw q kill q and print chr ord q ref or and print chr ord q q eq and print chr ord q lt eval and print chr ord q chr lc and print chr ord q ref or and print chr ord q q q and print chr ord q tie gt and print chr ord qw q die q and print chr ord q ref or and print chr ord q map m and print chr oct oct ord uc qw q bless q and print chr ord q q eq and print chr ord qw q fcntl q and print chr ord q sin s and print chr ord qw q no q and print chr ord qw q die q and print chr ord q q eq and print chr ord q local and print chr ord qw q uc 

 

 应该是命令行形式的数据，#!/usr/bin/perl -w后的第一段代码会被执行。

在线运行一下  https://c.runoob.com/compile/17

 

 

得到字符串： ZmxhZ3t3aGF0XzFzX2YxYWc/fQ==

base64解码得到flag

flag{what_1s_f1ag?}