爱快固件收集 禁止违法用途
download with ipfs gateaway
like https://4everland.io/ipfs/QmV5ibLDRKow4wVrrps9RSjNEG8cyz33AEunLJ7kfNQJ7V
format is https://4everland.io/ipfs/{cid}
beenwolk it if you like
| cid | filename |
|---|---|
| QmS1RTyyLRR9Wh165hhKrGN4TgwjK5MkvJbainLSQ3uUqp | IK-MT7981V1-M5S_sysupgrade_3.7.5_Build202308311702.bin |
| QmV5ibLDRKow4wVrrps9RSjNEG8cyz33AEunLJ7kfNQJ7V | iKuai8_x64_3.6.3_Enterprise_Build202204081243.bin |
| QmViNmngDN815AehEYSVT9V8RXYtRk4fLVg9uvADdP2ej3 | IK-MT7621_N7_5G_sysupgrade_2.0.1.bin |
| Qmb1KfDoVsTWEL9gk1zYWAJGN1Q2BJxcaTWVTvwC7gsFhy | IK-MT7621_N7_5G_sysupgrade_2.0.4.bin |
| QmQu5mT9LL8Mgthe15diXaX7gVc6wQFmecD3yWRuqACgZG | IK-WAQCA9531_W6S_5G_sysupgrade_1.7.1.bin |
| QmZpVUWeXHsLoi8Vs2xUPGf5NSDJ6tQH26wxyyCGCPYsvd | IK-WIPQ6018_X6_5G_sysupgrade_1.7.5.bin |
| QmQyU6SB2Sg1Wpc6Znq8FjU5AADASm4fzFx5sLHRwBWQe3 | IK-WIPQ6018_X6_5G_sysupgrade_1.7.6.bin |
| QmafNuzENQJHFV2qJEcN5oGWPqiDEmfQngPxoFkdy9K8jg | iKuai8_x64_3.6.13_Enterprise_Build202301131535.bin |
| QmdrpzZTD4jCuC7iQMZw8GAeSJGCLrS11FMYdgS4ZAHFjL | iKuai8_x32_3.1.7_Enterprise_Build201903181458.bin |
| QmQDsW5bVhnyeF3VFsEo5yHqyynPfrZ23KnSypH25kifkX | iKuai8_x64_3.7.2_Enterprise_Build202304211809.bin |
| QmRhPgdsieD6J4ZCLacA2Tfr8CqufUzrcu5431JzdPGeRq | iKuai8_x64_3.7.5_Enterprise_Build202308081511.bin |
| QmQqJoyoR69TrQwCPdXp9cZTULSQXULZ1Rm1h4tWUrFy89 | iKuai-GX2600_x64_3.5.4_Enterprise_Build202105071917.bin |
#!/bin/bash
srcfile=$1
UPDATE_DIR=.
headlen=$(printf "%u" 0x$(hexdump -v -n 4 $srcfile -e '4/1 "%02x"'))
echo $headlen
printf "\x1f\x8b\x08\x00\x6f\x9b\x4b\x59\x02\x03" > $UPDATE_DIR/header.bin
dd if=$srcfile bs=1 skip=4 count=$headlen >> $UPDATE_DIR/header.bin 2>/dev/null
gunzip < $UPDATE_DIR/header.bin > $UPDATE_DIR/header_info.json
dd if=$srcfile bs=$((headlen+4)) skip=1 >> $UPDATE_DIR/firmware.bin 2>/dev/null
gzip -d < firmware.bin > firmware.bin.decompressed
mkdir mount
sudo mount firmware.bin.decompressed mount
cp mount/boot/rootfs ./
cp mount/boot/vmlinuz ./
echo '#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
uint8_t ext_key[1024];
uint8_t key[17] = { 0x77, 0xb1, 0xfa, 0x93, 0x74, 0x2c, 0xb3, 0x9d,
0x33, 0x83, 0x55, 0x3e, 0x84, 0x8a, 0x52, 0x91, 0x00 };
uint8_t hash_table[] = {
0x00, 0x00, 0x00, 0x00, 0x64, 0x10, 0xB7, 0x1D, 0xC8, 0x20,
0x6E, 0x3B, 0xAC, 0x30, 0xD9, 0x26, 0x90, 0x41, 0xDC, 0x76,
0xF4, 0x51, 0x6B, 0x6B, 0x58, 0x61, 0xB2, 0x4D, 0x3C, 0x71,
0x05, 0x50, 0x20, 0x83, 0xB8, 0xED, 0x44, 0x93, 0x0F, 0xF0,
0xE8, 0xA3, 0xD6, 0xD6, 0x8C, 0xB3, 0x61, 0xCB, 0xB0, 0xC2,
0x64, 0x9B, 0xD4, 0xD2, 0xD3, 0x86, 0x78, 0xE2, 0x0A, 0xA0,
0x1C, 0xF2, 0xBD, 0xBD
};
int32_t hash(uint8_t* a1, uint32_t a2)
{
uint64_t v2 = 0;
uint32_t result = 0xffffffff;
uint8_t v4;
uint32_t v5;
while (a2 != (uint32_t)v2) {
v4 = a1[v2++];
v5 = hash_table[(v4 ^ (uint8_t)result) & 0xf] ^ ((uint32_t)result >> 4);
result = hash_table[((uint8_t)v5 ^ (v4 >> 4)) & 0xf] ^ (v5 >> 4);
}
return result;
}
int main()
{
int64_t key_index = 0;
uint32_t initrd_real_size, tmp_var, hash_var;
int8_t initrd_size_low_byte;
int32_t var_0 = 0, var_1 = 1;
uint8_t* initrd_start;
int64_t initrd_size;
struct stat* initrd_stat;
FILE* f;
uint8_t* p_hash;
int64_t iter = 0;
f = fopen("./rootfs.raw", "rb");
initrd_stat = (struct stat*)malloc(sizeof(struct stat));
fstat(fileno(f), initrd_stat);
initrd_size = initrd_stat->st_size;
initrd_start = (uint8_t*)malloc(initrd_size);
fread(initrd_start, sizeof(uint8_t), initrd_size, f);
fclose(f);
// initrd_real_size = initrd_size - 4;
initrd_real_size = initrd_size - 4;
initrd_size_low_byte = (int8_t)(initrd_size - 4);
do {
ext_key[key_index] = key[key_index & 0xf] + 19916032 * ((int32_t)key_index + 1) / 131u;
++key_index;
} while (key_index != 1024);
for (iter = 0;
initrd_real_size > (uint32_t)iter;
initrd_start[iter - 1] = ((initrd_start[iter - 1] - (uint8_t)tmp_var) << ((uint8_t)tmp_var % 7u + 1)) | ((int32_t)(uint8_t)(initrd_start[iter - 1] - tmp_var) >> (8 - ((uint8_t)tmp_var % 7u + 1)))) {
tmp_var = var_0 + iter++;
*(uint8_t*)&tmp_var = (uint8_t)(initrd_size_low_byte + ext_key[tmp_var % 1024u] * var_1);
}
printf("initrd_size:%ld\n"
"initrd_real_size:%d\n"
"iter:%ld\n",
initrd_size, initrd_real_size, iter);
hash_var = __builtin_bswap32(~hash(initrd_start, initrd_size - 4));
hash_var = __builtin_bswap32(~hash((uint8_t*)&hash_var, 4));
p_hash = (uint8_t*)(initrd_start + initrd_size - 4);
if (*(uint32_t*)p_hash == hash_var) {
printf("success\n");
}
f = fopen("./rootfs.decode", "wb");
fwrite(initrd_start, sizeof(uint8_t), initrd_size, f);
fclose(f);
free(initrd_start);
free(initrd_stat);
return 0;
}' >dec.c
gcc -o dec dec.c
cp rootfs rootfs.raw
./dec
mv rootfs.decode rootfs.xz
umount mount
rm -r mount
之后解开rootfs.xz，里面是个一个ext或者其他格式的文件系统镜像
pmd里面有三个地方用了加解密，更新消息、数据库文件、pkg包
加解密除了算法还需要密码和saly用来生成aes-256-cbc的秘钥和iv，
pkg包的密码来源应该是在线获得（安装）或者从数据库文件中查询（安装后重启）
pkg包的salt来源在包的前16个字节中的后一半
解密后那个文件开头是一个sh脚本，后面是一个gz压缩包
解密后的pkg文件头部的shell脚本本身就是个安装程序，打包好一个包含了应有文件的软件包，然后加上个shell头，然后加密，加密后再把软件包的加密密码放到数据库文件里面
ciphertext='''
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OcuewqlqaryIr9cfB8dhj4H2BPSDEPugBbYTBYAW7sqcYudIsHH1GfT9H3e9R1xdfGCv45m7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'''
from Crypto.Cipher import AES
from Crypto.Protocol.KDF import PBKDF2
from Crypto.Random import get_random_bytes
import base64
import hashlib, binascii
from passlib.utils.pbkdf2 import pbkdf1
def hasher(algo, data):
hashes = {'md5': hashlib.md5, 'sha256': hashlib.sha256,
'sha512': hashlib.sha512}
h = hashes[algo]()
h.update(data)
return h.digest()
# pwd and salt must be bytes objects
def openssl_kdf(algo, pwd, salt, key_size, iv_size):
if algo == 'md5':
temp = pbkdf1(pwd, salt, 1, 16, 'md5')
else:
temp = b''
fd = temp
while len(fd) < key_size + iv_size:
temp = hasher(algo, temp + pwd + salt)
fd += temp
key = fd[0:key_size]
iv = fd[key_size:key_size+iv_size]
print('salt=' + binascii.hexlify(salt).decode('ascii').upper())
print('key=' + binascii.hexlify(key).decode('ascii').upper())
print('iv=' + binascii.hexlify(iv).decode('ascii').upper())
return key, iv
def aes_decrypt(password, ciphertext, salted=False):
if salted:
# skip header "Salted__"
ciphertext = ciphertext[8:]
salt = ciphertext[:8]
else:
salt = b''
key_length = 32 # AES-256
iv_length = 16
key=None
iv=None
key,iv=openssl_kdf(algo="md5",pwd=password,salt=b'',key_size=key_length,iv_size=iv_length)
cipher = AES.new(key, AES.MODE_CBC, iv)
plaintext = cipher.decrypt(ciphertext)
return plaintext.rstrip(b'\0')
password = b'ikupdat-d~#-'
encrypted_data = base64.b64decode(ciphertext)
decrypted_data = aes_decrypt(password, encrypted_data, salted=False)
print(decrypted_data.decode('utf-8'))
from Crypto.Cipher import AES
from Crypto.Protocol.KDF import PBKDF2
from Crypto.Random import get_random_bytes
import base64
import hashlib, binascii
from passlib.utils.pbkdf2 import pbkdf1
def hasher(algo, data):
hashes = {'md5': hashlib.md5, 'sha256': hashlib.sha256,
'sha512': hashlib.sha512}
h = hashes[algo]()
h.update(data)
return h.digest()
# pwd and salt must be bytes objects
def openssl_kdf(algo, pwd, salt, key_size, iv_size):
if algo == 'md5':
temp = pbkdf1(pwd, salt, 1, 16, 'md5')
else:
temp = b''
fd = temp
while len(fd) < key_size + iv_size:
temp = hasher(algo, temp + pwd + salt)
fd += temp
key = fd[0:key_size]
iv = fd[key_size:key_size+iv_size]
print('salt=' + binascii.hexlify(salt).decode('ascii').upper())
print('key=' + binascii.hexlify(key).decode('ascii').upper())
print('iv=' + binascii.hexlify(iv).decode('ascii').upper())
return key, iv
def aes_decrypt(password, ciphertext, salted=False):
if salted:
# skip header "Salted__"
ciphertext = ciphertext[8:]
salt = ciphertext[:8]
else:
salt = b''
# skip salt
ciphertext=ciphertext[8:]
key_length = 16 # AES-128 16 aes-256 32
iv_length = 16
key=None
iv=None
key,iv=openssl_kdf(algo="md5",pwd=password,salt=salt,key_size=key_length,iv_size=iv_length)
cipher = AES.new(key, AES.MODE_CBC, iv)
plaintext = cipher.decrypt(ciphertext)
return plaintext.rstrip(b'\0')
password = b'599eba19aa93a929cb8589f148b8a6c4'
encrypted_data = open("netboard.bin.pkg","rb").read()
decrypted_data = aes_decrypt(password, encrypted_data, salted=True)
open("netboard.bin.pkg.decrypted","wb").write(decrypted_data)
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