WebUI：CH-app-EN53.8.1.13_VSTARCAM.zip
问题：仅提取“ sysversion.txt，有点轻：）。
文件：
ron@vpsXXXXXX:~/firmware$ ls
CH-sys-48.53.64.67.zip
ron@vpsXXXXXX:~/firmware$ binwalk CH-sys-48.53.64.67.zip
DECIMAL HEXADECIMAL DESCRIPTION
--------------------------------------------------------------------------------
0 0x0 Zip archive data, at least v2.0 to extract, compressed size: 605571, uncompressed size: 612699, name: CH-sys-48.53.64.67.bin
605717 0x93E15 End of Zip archive
ron@vpsXXXXXX:~/firmware$ file CH-sys-48.53.64.67.zip
CH-sys-48.53.64.67.zip: Zip archive data, at least v2.0 to extract
ron@vpsXXXXXX:~/firmware$ unzip CH-sys-48.53.64.67.zip
Archive: CH-sys-48.53.64.67.zip
inflating: CH-sys-48.53.64.67.bin
人行道提取：
ron@vpsXXXXXX:~/firmware$ binwalk CH-sys-48.53.64.67.bin
DECIMAL HEXADECIMAL DESCRIPTION
--------------------------------------------------------------------------------
172 0xAC Zip archive data, at least v2.0 to extract, compressed size: 8969, uncompressed size: 19091, name: system/system/lib/libsns_gc1004.so
9337 0x2479 End of Zip archive
9499 0x251B Zip archive data, at least v2.0 to extract, compressed size: 7813, uncompressed size: 16341, name: system/system/lib/libsns_ov9712_plus.so
17518 0x446E End of Zip archive
17680 0x4510 Zip archive data, at least v2.0 to extract, compressed size: 90121, uncompressed size: 353248, name: system/system/lib/libOnvif.so
107987 0x1A5D3 End of Zip archive
108149 0x1A675 Zip archive data, at least v2.0 to extract, compressed size: 43603, uncompressed size: 84480, name: system/system/lib/libvoice_arm.so
151946 0x2518A End of Zip archive
152108 0x2522C Zip archive data, at least v2.0 to extract, compressed size: 130, uncompressed size: 227, name: system/init/ipcam.sh
152406 0x25356 End of Zip archive
152568 0x253F8 Zip archive data, at least v2.0 to extract, compressed size: 402383, uncompressed size: 886168, name: system/system/bin/encoder
555129 0x87879 End of Zip archive
555291 0x8791B Zip archive data, at least v2.0 to extract, compressed size: 35394, uncompressed size: 74200, name: system/system/bin/wifidaemon
590869 0x90415 End of Zip archive
591031 0x904B7 Zip archive data, at least v2.0 to extract, compressed size: 1852, uncompressed size: 9692, name: system/system/bin/grade.sh
593063 0x90CA7 End of Zip archive
593225 0x90D49 Zip archive data, at least v2.0 to extract, compressed size: 8704, uncompressed size: 20212, name: system/system/bin/updata
602105 0x92FF9 End of Zip archive
602267 0x9309B Zip archive data, at least v2.0 to extract, compressed size: 1874, uncompressed size: 4522, name: system/system/bin/gpio_aplink.ko
604333 0x938AD End of Zip archive
604495 0x9394F Zip archive data, at least v2.0 to extract, compressed size: 7241, uncompressed size: 16802, name: system/system/bin/motogpio.ko
611922 0x95652 End of Zip archive
612084 0x956F4 Zip archive data, at least v1.0 to extract, compressed size: 8, uncompressed size: 8, name: system/system/bin/fwversion.bin
612282 0x957BA End of Zip archive
612444 0x9585C Zip archive data, at least v1.0 to extract, compressed size: 9, uncompressed size: 9, name: system/system/bin/sysversion.txt
612645 0x95925 End of Zip archive
仅提取了一个目标文件...
快速浏览标题：
ron@vpsXXXXXX:~/firmware$ binwalk -Mer CH-sys-48.53.64.67.bin
Scan Time: 2016-01-19 00:36:12
Target File: /home/ron/firmware/CH-sys-48.53.64.67.bin
MD5 Checksum: 58df9214226cfe46760215bfca0c496c
Signatures: 344
DECIMAL HEXADECIMAL DESCRIPTION
--------------------------------------------------------------------------------
172 0xAC Zip archive data, at least v2.0 to extract, compressed size: 8969, uncompressed size: 19091, name: system/system/lib/libsns_gc1004.so
9337 0x2479 End of Zip archive
9499 0x251B Zip archive data, at least v2.0 to extract, compressed size: 7813, uncompressed size: 16341, name: system/system/lib/libsns_ov9712_plus.so
17518 0x446E End of Zip archive
17680 0x4510 Zip archive data, at least v2.0 to extract, compressed size: 90121, uncompressed size: 353248, name: system/system/lib/libOnvif.so
107987 0x1A5D3 End of Zip archive
108149 0x1A675 Zip archive data, at least v2.0 to extract, compressed size: 43603, uncompressed size: 84480, name: system/system/lib/libvoice_arm.so
151946 0x2518A End of Zip archive
152108 0x2522C Zip archive data, at least v2.0 to extract, compressed size: 130, uncompressed size: 227, name: system/init/ipcam.sh
152406 0x25356 End of Zip archive
152568 0x253F8 Zip archive data, at least v2.0 to extract, compressed size: 402383, uncompressed size: 886168, name: system/system/bin/encoder
555129 0x87879 End of Zip archive
555291 0x8791B Zip archive data, at least v2.0 to extract, compressed size: 35394, uncompressed size: 74200, name: system/system/bin/wifidaemon
590869 0x90415 End of Zip archive
591031 0x904B7 Zip archive data, at least v2.0 to extract, compressed size: 1852, uncompressed size: 9692, name: system/system/bin/grade.sh
593063 0x90CA7 End of Zip archive
593225 0x90D49 Zip archive data, at least v2.0 to extract, compressed size: 8704, uncompressed size: 20212, name: system/system/bin/updata
602105 0x92FF9 End of Zip archive
602267 0x9309B Zip archive data, at least v2.0 to extract, compressed size: 1874, uncompressed size: 4522, name: system/system/bin/gpio_aplink.ko
604333 0x938AD End of Zip archive
604495 0x9394F Zip archive data, at least v2.0 to extract, compressed size: 7241, uncompressed size: 16802, name: system/system/bin/motogpio.ko
611922 0x95652 End of Zip archive
612084 0x956F4 Zip archive data, at least v1.0 to extract, compressed size: 8, uncompressed size: 8, name: system/system/bin/fwversion.bin
612282 0x957BA End of Zip archive
612444 0x9585C Zip archive data, at least v1.0 to extract, compressed size: 9, uncompressed size: 9, name: system/system/bin/sysversion.txt
612645 0x95925 End of Zip archive
Scan Time: 2016-01-19 00:36:12
Target File: /home/ron/firmware/_CH-sys-48.53.64.67.bin.extracted/system/system/bin/sysversion.txt
MD5 Checksum: 3e98d83fbced8eb62c79542f5df5a14f
Signatures: 344
DECIMAL HEXADECIMAL DESCRIPTION
--------------------------------------------------------------------------------
知道为什么我不能提取所有内容吗？
谢谢！
罗南
#1 楼
尽管我的binwalk版本将文件和仅包含system的zip文件正确地提取到了sysversion.txt文件夹中，但我还是简短地描述了为什么在存档文件中仅看到sysversion.txt。并且binwalk不知道这些文件的确切大小。因此，它可以基于PK魔术来正确识别PKZIP文件的开头，但是在不知道正确文件大小的情况下，它将剩余字节提取到创建的ZIP文件中。因为PKZIP格式的中央目录结构存储在ZIP文件的末尾，所以在压缩数据和提取的ZIP文件以sysversion.txt.zip结尾之后，文件查看器或解压缩器可能会找到最后一个ZIP文件的中央目录。 > 要解决此问题，您可以检查找到ZIP文件的文件夹中的系统文件夹，也可以手动提取文件。
如果查看
CH-sys-48.53.64.67.bin文件的开头，您会发现它具有简单的结构。它以魔术字符串（图片中标记为蓝色）开头。下一个元素是0x40字节长的目录名称（标有黄色），后跟0x40字节长的文件名条目（标有绿色）。在文件名之后，您将找到文件的大小（标有紫色），一些标志和二进制内容（标有灰色的二进制文件的开头）。
根据这些信息，您可以编写一个简单的脚本，该脚本可以正确提取文件，例如：
import sys
import struct
if (len(sys.argv) < 2):
print 'usage: parse binary'
sys.exit(1)
b = open(sys.argv[1], 'rb').read()
o = 0x20
while(o < len(b)-0x20):
dir = b[o:o+0x40].strip('\x00')
fname = b[o+0x40:o+0x80].strip('\x00')
size = struct.unpack('L', b[o+0x80:o+0x84])[0]
unk1 = struct.unpack('L', b[o+0x84:o+0x88])[0]
unk2 = struct.unpack('L', b[o+0x88:o+0x8c])[0]
print '%x, %s, %s: %x, %x, %x'%(o, dir, fname, size, unk1, unk2)
open(fname, 'wb').write(b[o+0x8c:o+0x8c+size])
o += 0x8c+size
评论
Binwalk 2.0.0完美地完成了2.1.1失败的工作。
–罗南
16年1月21日在23:44
嗨，我想说的是，我使用Binwalk 2.1.1提取了类似的固件，并且工作得很好，唯一的奇怪的是，它添加了一堆十六进制的zip文件，其中没有任何内容，而实际上只是每个文件头打包的zip文件。不过，感谢您反转标头，非常有帮助！
–redcodefinal
19年3月19日在13:17