mirror of
https://github.com/lgandx/Responder.git
synced 2025-12-19 06:09:02 +00:00
Added py3 and py2 compatibility + many bugfix
This commit is contained in:
lgandx
@@ -21,14 +21,14 @@
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from framework.win32.rawreg import *
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from framework.addrspace import HiveFileAddressSpace
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#from framework.win32.hashdump import get_bootkey
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from framework.win32.hashdump import get_bootkey
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from framework.win32.lsasecrets import get_secret_by_name,get_lsa_key
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from Crypto.Hash import HMAC
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from Crypto.Cipher import ARC4
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from Crypto.Cipher import ARC4, AES
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from struct import unpack
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def get_nlkm(secaddr, lsakey):
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return get_secret_by_name(secaddr, 'NL$KM', lsakey)
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def get_nlkm(secaddr, lsakey, vista):
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return get_secret_by_name(secaddr, 'NL$KM', lsakey, vista)
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def decrypt_hash(edata, nlkm, ch):
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hmac_md5 = HMAC.new(nlkm,ch)
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@@ -38,6 +38,21 @@ def decrypt_hash(edata, nlkm, ch):
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data = rc4.encrypt(edata)
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return data
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def decrypt_hash_vista(edata, nlkm, ch):
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"""
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Based on code from http://lab.mediaservice.net/code/cachedump.rb
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"""
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aes = AES.new(nlkm[16:32], AES.MODE_CBC, ch)
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out = bytearray()
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for i in range(0, len(edata), 16):
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buf = edata[i : i+16]
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if len(buf) < 16:
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buf += (16 - len(buf)) * b"\00"
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out += aes.decrypt(buf)
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return out
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def parse_cache_entry(cache_data):
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(uname_len, domain_len) = unpack("<HH", cache_data[:4])
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(domain_name_len,) = unpack("<H", cache_data[60:62])
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@@ -48,9 +63,9 @@ def parse_cache_entry(cache_data):
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def parse_decrypted_cache(dec_data, uname_len,
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domain_len, domain_name_len):
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uname_off = 72
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pad = 2 * ( ( uname_len / 2 ) % 2 )
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pad = 2 * ( ( uname_len // 2 ) % 2 )
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domain_off = uname_off + uname_len + pad
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pad = 2 * ( ( domain_len / 2 ) % 2 )
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pad = 2 * ( ( domain_len // 2 ) % 2 )
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domain_name_off = domain_off + domain_len + pad
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hash = dec_data[:0x10]
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@@ -63,16 +78,16 @@ def parse_decrypted_cache(dec_data, uname_len,
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return (username, domain, domain_name, hash)
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def dump_hashes(Key, secaddr):
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bootkey = Key
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def dump_hashes(sysaddr, secaddr, vista):
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bootkey = get_bootkey(sysaddr)
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if not bootkey:
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return []
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lsakey = get_lsa_key(secaddr, bootkey)
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lsakey = get_lsa_key(secaddr, bootkey, vista)
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if not lsakey:
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return []
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nlkm = get_nlkm(secaddr, lsakey)
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nlkm = get_nlkm(secaddr, lsakey, vista)
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if not nlkm:
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return []
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@@ -86,7 +101,7 @@ def dump_hashes(Key, secaddr):
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hashes = []
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for v in values(cache):
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if v.Name == "NL$Control": continue
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if v.Name == b"NL$Control": continue
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data = v.space.read(v.Data.value, v.DataLength.value)
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@@ -97,7 +112,11 @@ def dump_hashes(Key, secaddr):
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if uname_len == 0:
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continue
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dec_data = decrypt_hash(enc_data, nlkm, ch)
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if vista:
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dec_data = decrypt_hash_vista(enc_data, nlkm, ch)
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else:
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dec_data = decrypt_hash(enc_data, nlkm, ch)
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(username, domain, domain_name,
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hash) = parse_decrypted_cache(dec_data, uname_len,
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@@ -107,11 +126,10 @@ def dump_hashes(Key, secaddr):
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return hashes
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def dump_file_hashes(Key, sechive_fname):
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sysaddr = Key
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def dump_file_hashes(syshive_fname, sechive_fname, vista):
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sysaddr = HiveFileAddressSpace(syshive_fname)
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secaddr = HiveFileAddressSpace(sechive_fname)
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for (u, d, dn, hash) in dump_hashes(sysaddr, secaddr):
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print "%s:%s:%s:%s" % (u.lower(), hash.encode('hex'),
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d.lower(), dn.lower())
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for (u, d, dn, hash) in dump_hashes(sysaddr, secaddr, vista):
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print("%s:%s:%s:%s" % (u.lower(), hash.hex(),
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d.lower(), dn.lower()))
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@@ -13,82 +13,89 @@
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# You should have received a copy of the GNU General Public License
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# along with creddump. If not, see <http://www.gnu.org/licenses/>.
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# pylint: disable=invalid-name,missing-docstring
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"""
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@author: Brendan Dolan-Gavitt
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@license: GNU General Public License 2.0 or later
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@contact: bdolangavitt@wesleyan.edu
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"""
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from framework.win32.rawreg import *
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from struct import unpack, pack
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import binascii
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from Crypto.Hash import MD5
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from Crypto.Cipher import ARC4, DES, AES
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from framework.win32.rawreg import get_root, open_key, values, subkeys
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from framework.addrspace import HiveFileAddressSpace
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try:
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from Crypto.Hash import MD5
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from Crypto.Cipher import ARC4,DES
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except ImportError:
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pass
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from struct import unpack,pack
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odd_parity = [
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1, 1, 2, 2, 4, 4, 7, 7, 8, 8, 11, 11, 13, 13, 14, 14,
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16, 16, 19, 19, 21, 21, 22, 22, 25, 25, 26, 26, 28, 28, 31, 31,
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32, 32, 35, 35, 37, 37, 38, 38, 41, 41, 42, 42, 44, 44, 47, 47,
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49, 49, 50, 50, 52, 52, 55, 55, 56, 56, 59, 59, 61, 61, 62, 62,
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64, 64, 67, 67, 69, 69, 70, 70, 73, 73, 74, 74, 76, 76, 79, 79,
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81, 81, 82, 82, 84, 84, 87, 87, 88, 88, 91, 91, 93, 93, 94, 94,
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97, 97, 98, 98,100,100,103,103,104,104,107,107,109,109,110,110,
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112,112,115,115,117,117,118,118,121,121,122,122,124,124,127,127,
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128,128,131,131,133,133,134,134,137,137,138,138,140,140,143,143,
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145,145,146,146,148,148,151,151,152,152,155,155,157,157,158,158,
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161,161,162,162,164,164,167,167,168,168,171,171,173,173,174,174,
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176,176,179,179,181,181,182,182,185,185,186,186,188,188,191,191,
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193,193,194,194,196,196,199,199,200,200,203,203,205,205,206,206,
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208,208,211,211,213,213,214,214,217,217,218,218,220,220,223,223,
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224,224,227,227,229,229,230,230,233,233,234,234,236,236,239,239,
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241,241,242,242,244,244,247,247,248,248,251,251,253,253,254,254
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1, 1, 2, 2, 4, 4, 7, 7, 8, 8, 11, 11, 13, 13, 14, 14,
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16, 16, 19, 19, 21, 21, 22, 22, 25, 25, 26, 26, 28, 28, 31, 31,
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32, 32, 35, 35, 37, 37, 38, 38, 41, 41, 42, 42, 44, 44, 47, 47,
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49, 49, 50, 50, 52, 52, 55, 55, 56, 56, 59, 59, 61, 61, 62, 62,
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64, 64, 67, 67, 69, 69, 70, 70, 73, 73, 74, 74, 76, 76, 79, 79,
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81, 81, 82, 82, 84, 84, 87, 87, 88, 88, 91, 91, 93, 93, 94, 94,
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97, 97, 98, 98, 100, 100, 103, 103, 104, 104, 107, 107, 109, 109, 110, 110,
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112, 112, 115, 115, 117, 117, 118, 118, 121, 121, 122, 122, 124, 124, 127, 127,
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128, 128, 131, 131, 133, 133, 134, 134, 137, 137, 138, 138, 140, 140, 143, 143,
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145, 145, 146, 146, 148, 148, 151, 151, 152, 152, 155, 155, 157, 157, 158, 158,
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161, 161, 162, 162, 164, 164, 167, 167, 168, 168, 171, 171, 173, 173, 174, 174,
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176, 176, 179, 179, 181, 181, 182, 182, 185, 185, 186, 186, 188, 188, 191, 191,
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193, 193, 194, 194, 196, 196, 199, 199, 200, 200, 203, 203, 205, 205, 206, 206,
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208, 208, 211, 211, 213, 213, 214, 214, 217, 217, 218, 218, 220, 220, 223, 223,
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224, 224, 227, 227, 229, 229, 230, 230, 233, 233, 234, 234, 236, 236, 239, 239,
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241, 241, 242, 242, 244, 244, 247, 247, 248, 248, 251, 251, 253, 253, 254, 254
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]
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# Permutation matrix for boot key
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p = [ 0x8, 0x5, 0x4, 0x2, 0xb, 0x9, 0xd, 0x3,
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0x0, 0x6, 0x1, 0xc, 0xe, 0xa, 0xf, 0x7 ]
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p = [0x8, 0x5, 0x4, 0x2, 0xb, 0x9, 0xd, 0x3,
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0x0, 0x6, 0x1, 0xc, 0xe, 0xa, 0xf, 0x7]
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# Constants for SAM decrypt algorithm
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aqwerty = "!@#$%^&*()qwertyUIOPAzxcvbnmQQQQQQQQQQQQ)(*@&%\0"
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anum = "0123456789012345678901234567890123456789\0"
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antpassword = "NTPASSWORD\0"
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almpassword = "LMPASSWORD\0"
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aqwerty = b"!@#$%^&*()qwertyUIOPAzxcvbnmQQQQQQQQQQQQ)(*@&%\0"
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anum = b"0123456789012345678901234567890123456789\0"
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antpassword = b"NTPASSWORD\0"
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almpassword = b"LMPASSWORD\0"
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empty_lm = binascii.unhexlify("aad3b435b51404eeaad3b435b51404ee")
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empty_nt = binascii.unhexlify("31d6cfe0d16ae931b73c59d7e0c089c0")
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empty_lm = "aad3b435b51404eeaad3b435b51404ee".decode('hex')
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empty_nt = "31d6cfe0d16ae931b73c59d7e0c089c0".decode('hex')
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def str_to_key(s):
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key = []
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key.append( ord(s[0])>>1 )
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key.append( ((ord(s[0])&0x01)<<6) | (ord(s[1])>>2) )
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key.append( ((ord(s[1])&0x03)<<5) | (ord(s[2])>>3) )
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key.append( ((ord(s[2])&0x07)<<4) | (ord(s[3])>>4) )
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key.append( ((ord(s[3])&0x0F)<<3) | (ord(s[4])>>5) )
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key.append( ((ord(s[4])&0x1F)<<2) | (ord(s[5])>>6) )
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key.append( ((ord(s[5])&0x3F)<<1) | (ord(s[6])>>7) )
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key.append( ord(s[6])&0x7F )
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key = bytearray()
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key.append(s[0] >> 1)
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key.append(((s[0] & 0x01) << 6) | ((s[1]) >> 2))
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key.append(((s[1] & 0x03) << 5) | ((s[2]) >> 3))
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key.append(((s[2] & 0x07) << 4) | ((s[3]) >> 4))
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key.append(((s[3] & 0x0F) << 3) | ((s[4]) >> 5))
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key.append(((s[4] & 0x1F) << 2) | ((s[5]) >> 6))
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key.append(((s[5] & 0x3F) << 1) | ((s[6]) >> 7))
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key.append(s[6] & 0x7F)
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for i in range(8):
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key[i] = (key[i]<<1)
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key[i] = (key[i] << 1)
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key[i] = odd_parity[key[i]]
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return "".join(chr(k) for k in key)
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return key
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def sid_to_key(sid):
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s1 = ""
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s1 += chr(sid & 0xFF)
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s1 += chr((sid>>8) & 0xFF)
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s1 += chr((sid>>16) & 0xFF)
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s1 += chr((sid>>24) & 0xFF)
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s1 += s1[0];
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s1 += s1[1];
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s1 += s1[2];
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s2 = s1[3] + s1[0] + s1[1] + s1[2]
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s2 += s2[0] + s2[1] + s2[2]
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s1 = bytearray()
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s1.append(sid & 0xFF)
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s1.append((sid >> 8) & 0xFF)
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s1.append((sid >> 16) & 0xFF)
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s1.append((sid >> 24) & 0xFF)
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s1.append(s1[0])
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s1.append(s1[1])
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s1.append(s1[2])
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s2 = bytearray([s1[3], s1[0], s1[1], s1[2]])
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s2.append(s2[0])
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s2.append(s2[1])
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s2.append(s2[2])
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return str_to_key(s1), str_to_key(s2)
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return str_to_key(s1),str_to_key(s2)
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def find_control_set(sysaddr):
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root = get_root(sysaddr)
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if not root:
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@@ -99,122 +106,206 @@ def find_control_set(sysaddr):
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return 1
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for v in values(csselect):
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if v.Name == "Current": return v.Data.value
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if v.Name == b"Current":
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return v.Data.value
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return 1
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def get_bootkey(sysaddr):
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cs = find_control_set(sysaddr)
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lsa_base = ["ControlSet%03d" % cs, "Control", "Lsa"]
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lsa_keys = ["JD", "Skew1", "GBG", "Data"]
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root = get_root(sysaddr)
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if not root:
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return None
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lsa = open_key(root, lsa_base)
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if not lsa:
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return None
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bootkey = []
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for lk in lsa_keys:
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key = open_key(lsa, [lk])
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class_data = sysaddr.read(key.Class.value, key.ClassLength.value)
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hex_string = class_data.decode('utf-16-le')
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hex_data = binascii.unhexlify(hex_string)
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for h in hex_data:
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bootkey.append(h)
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bootkey_scrambled = []
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for i in range(len(bootkey)):
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bootkey_scrambled.append(bootkey[p[i]])
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return bytes(bootkey_scrambled)
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def get_hbootkey(samaddr, bootkey):
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sam_account_path = ["SAM", "Domains", "Account"]
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root = get_root(samaddr)
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if not root: return None
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if not root:
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return None
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sam_account_key = open_key(root, sam_account_path)
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if not sam_account_key: return None
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if not sam_account_key:
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return None
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F = None
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for v in values(sam_account_key):
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if v.Name == 'F':
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if v.Name == b'F':
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F = samaddr.read(v.Data.value, v.DataLength.value)
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if not F: return None
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if not F:
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return None
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md5 = MD5.new()
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md5.update(F[0x70:0x80] + aqwerty + bootkey + anum)
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rc4_key = md5.digest()
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revision = F[0x00]
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if revision == 2:
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md5 = MD5.new()
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md5.update(F[0x70:0x80] + aqwerty + bootkey + anum)
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rc4_key = md5.digest()
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rc4 = ARC4.new(rc4_key)
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hbootkey = rc4.encrypt(F[0x80:0xA0])
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return hbootkey
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rc4 = ARC4.new(rc4_key)
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hbootkey = rc4.encrypt(F[0x80:0xA0])
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return hbootkey
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if revision == 3:
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iv = F[0x78:0x88]
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encryptedHBootKey = F[0x88:0xA8]
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cipher = AES.new(bootkey, AES.MODE_CBC, iv)
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hbootkey = cipher.decrypt(encryptedHBootKey)
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return hbootkey[:16]
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print("Unknown revision: %d" % revision)
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return None
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def get_user_keys(samaddr):
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user_key_path = ["SAM", "Domains", "Account", "Users"]
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root = get_root(samaddr)
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if not root: return []
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if not root:
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return []
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user_key = open_key(root, user_key_path)
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if not user_key: return []
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if not user_key:
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return []
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return [k for k in subkeys(user_key) if k.Name != b"Names"]
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return [k for k in subkeys(user_key) if k.Name != "Names"]
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def decrypt_single_hash(rid, hbootkey, enc_hash, lmntstr):
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(des_k1,des_k2) = sid_to_key(rid)
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if enc_hash == "":
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return ""
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(des_k1, des_k2) = sid_to_key(rid)
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d1 = DES.new(des_k1, DES.MODE_ECB)
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d2 = DES.new(des_k2, DES.MODE_ECB)
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md5 = MD5.new()
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md5.update(hbootkey[:0x10] + pack("<L",rid) + lmntstr)
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md5.update(hbootkey[:0x10] + pack("<L", rid) + lmntstr)
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rc4_key = md5.digest()
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rc4 = ARC4.new(rc4_key)
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obfkey = rc4.encrypt(enc_hash)
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hash = d1.decrypt(obfkey[:8]) + d2.decrypt(obfkey[8:])
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return d1.decrypt(obfkey[:8]) + d2.decrypt(obfkey[8:])
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return hash
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def decrypt_hashes(rid, enc_lm_hash, enc_nt_hash, hbootkey):
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# LM Hash
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||||
if enc_lm_hash:
|
||||
lmhash = decrypt_single_hash(rid, hbootkey, enc_lm_hash, almpassword)
|
||||
else:
|
||||
lmhash = ""
|
||||
|
||||
# NT Hash
|
||||
if enc_nt_hash:
|
||||
nthash = decrypt_single_hash(rid, hbootkey, enc_nt_hash, antpassword)
|
||||
else:
|
||||
nthash = ""
|
||||
def decrypt_single_salted_hash(rid, hbootkey, enc_hash, salt):
|
||||
if enc_hash == "":
|
||||
return ""
|
||||
(des_k1, des_k2) = sid_to_key(rid)
|
||||
d1 = DES.new(des_k1, DES.MODE_ECB)
|
||||
d2 = DES.new(des_k2, DES.MODE_ECB)
|
||||
cipher = AES.new(hbootkey[:16], AES.MODE_CBC, salt)
|
||||
obfkey = cipher.decrypt(enc_hash)
|
||||
return d1.decrypt(obfkey[:8]) + d2.decrypt(obfkey[8:16])
|
||||
|
||||
return lmhash,nthash
|
||||
|
||||
def get_user_hashes(user_key, hbootkey):
|
||||
# pylint: disable=too-many-locals
|
||||
samaddr = user_key.space
|
||||
rid = int(user_key.Name, 16)
|
||||
try:
|
||||
rid = int(user_key.Name.decode(), 16)
|
||||
except ValueError:
|
||||
print("Could not decode rid from key name %s" % (user_key.Name.decode()))
|
||||
return None, None
|
||||
V = None
|
||||
for v in values(user_key):
|
||||
if v.Name == 'V':
|
||||
if v.Name == b'V':
|
||||
V = samaddr.read(v.Data.value, v.DataLength.value)
|
||||
if not V: return None
|
||||
if not V:
|
||||
return None, None
|
||||
hash_offset = unpack("<L", V[0xa8:0xa8 + 4])[0] + 0xCC
|
||||
|
||||
hash_offset = unpack("<L", V[0x9c:0x9c+4])[0] + 0xCC
|
||||
lm_offset_bytes = V[0x9c:0x9c + 4]
|
||||
nt_offset_bytes = V[0x9c + 12:0x9c + 16]
|
||||
lm_offset = unpack("<L", lm_offset_bytes)[0] + 204
|
||||
nt_offset = unpack("<L", nt_offset_bytes)[0] + 204
|
||||
|
||||
lm_exists = True if unpack("<L", V[0x9c+4:0x9c+8])[0] == 20 else False
|
||||
nt_exists = True if unpack("<L", V[0x9c+16:0x9c+20])[0] == 20 else False
|
||||
lmhash = None
|
||||
nthash = None
|
||||
|
||||
enc_lm_hash = V[hash_offset+4:hash_offset+20] if lm_exists else ""
|
||||
enc_nt_hash = V[hash_offset+(24 if lm_exists else 8):hash_offset+(24 if lm_exists else 8)+16] if nt_exists else ""
|
||||
lm_revision_bytes = V[lm_offset + 2:lm_offset + 3]
|
||||
lm_revision = unpack('<B', lm_revision_bytes)[0]
|
||||
if lm_revision == 1:
|
||||
lm_exists = unpack("<L", V[0x9c + 4:0x9c + 8])[0] == 20
|
||||
enc_lm_hash = V[hash_offset + 4:hash_offset + 20] if lm_exists else ""
|
||||
lmhash = decrypt_single_hash(rid, hbootkey, enc_lm_hash, almpassword)
|
||||
elif lm_revision == 2:
|
||||
lm_exists = unpack("<L", V[0x9c + 4:0x9c + 8])[0] == 56
|
||||
lm_salt = V[hash_offset + 4:hash_offset + 20] if lm_exists else ""
|
||||
enc_lm_hash = V[hash_offset + 20:hash_offset + 52] if lm_exists else ""
|
||||
lmhash = decrypt_single_salted_hash(rid, hbootkey, enc_lm_hash, lm_salt)
|
||||
|
||||
nt_revision_bytes = V[nt_offset + 2:nt_offset + 3]
|
||||
nt_revision = unpack('<B', nt_revision_bytes)[0]
|
||||
if nt_revision == 1:
|
||||
nt_exists = unpack("<L", V[0x9c + 16:0x9c + 20])[0] == 20
|
||||
enc_nt_hash = V[nt_offset + 4:nt_offset + 20] if nt_exists else ""
|
||||
nthash = decrypt_single_hash(rid, hbootkey, enc_nt_hash, antpassword)
|
||||
elif nt_revision == 2:
|
||||
nt_exists = unpack("<L", V[0x9c + 16:0x9c + 20])[0] == 56
|
||||
nt_salt = V[nt_offset + 8:nt_offset + 24] if nt_exists else ""
|
||||
enc_nt_hash = V[nt_offset + 24:nt_offset + 56] if nt_exists else ""
|
||||
nthash = decrypt_single_salted_hash(rid, hbootkey, enc_nt_hash, nt_salt)
|
||||
|
||||
return lmhash, nthash
|
||||
|
||||
return decrypt_hashes(rid, enc_lm_hash, enc_nt_hash, hbootkey)
|
||||
|
||||
def get_user_name(user_key):
|
||||
samaddr = user_key.space
|
||||
V = None
|
||||
for v in values(user_key):
|
||||
if v.Name == 'V':
|
||||
if v.Name == b'V':
|
||||
V = samaddr.read(v.Data.value, v.DataLength.value)
|
||||
if not V: return None
|
||||
if not V:
|
||||
return None
|
||||
|
||||
name_offset = unpack("<L", V[0x0c:0x10])[0] + 0xCC
|
||||
name_length = unpack("<L", V[0x10:0x14])[0]
|
||||
|
||||
username = V[name_offset:name_offset+name_length].decode('utf-16-le')
|
||||
username = V[name_offset:name_offset + name_length].decode('utf-16-le')
|
||||
return username
|
||||
|
||||
def dump_hashes(Key, samaddr):
|
||||
bootkey = Key
|
||||
hbootkey = get_hbootkey(samaddr,bootkey)
|
||||
Output = ""
|
||||
for user in get_user_keys(samaddr):
|
||||
lmhash,nthash = get_user_hashes(user,hbootkey)
|
||||
if not lmhash: lmhash = empty_lm
|
||||
if not nthash: nthash = empty_nt
|
||||
hashes = "%s:%d:%s:%s:::" % (get_user_name(user), int(user.Name,16),
|
||||
lmhash.encode('hex'), nthash.encode('hex'))
|
||||
hashesdump = "%s:%d:%s:%s:::\n" % (get_user_name(user), int(user.Name,16),
|
||||
lmhash.encode('hex'), nthash.encode('hex'))
|
||||
print hashes
|
||||
Output += hashesdump
|
||||
return Output
|
||||
|
||||
def dump_file_hashes(Key, samhive_fname):
|
||||
def dump_hashes(sysaddr, samaddr):
|
||||
bootkey = get_bootkey(sysaddr)
|
||||
hbootkey = get_hbootkey(samaddr, bootkey)
|
||||
|
||||
for user in get_user_keys(samaddr):
|
||||
lmhash, nthash = get_user_hashes(user, hbootkey)
|
||||
if not lmhash:
|
||||
lmhash = empty_lm
|
||||
if not nthash:
|
||||
nthash = empty_nt
|
||||
try:
|
||||
print("%s:%d:%s:%s:::" % (get_user_name(user), int(user.Name, 16),
|
||||
lmhash.hex(), nthash.hex()))
|
||||
except ValueError:
|
||||
pass # skip if user.Name cannot be converted to an int, since its a "false" rid like the "Names" key
|
||||
|
||||
|
||||
def dump_file_hashes(syshive_fname, samhive_fname):
|
||||
sysaddr = HiveFileAddressSpace(syshive_fname)
|
||||
samaddr = HiveFileAddressSpace(samhive_fname)
|
||||
Output = dump_hashes(Key, samaddr)
|
||||
return Output
|
||||
dump_hashes(sysaddr, samaddr)
|
||||
|
||||
@@ -13,26 +13,33 @@
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with creddump. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
# pylint: disable=missing-docstring
|
||||
|
||||
"""
|
||||
@author: Brendan Dolan-Gavitt
|
||||
@license: GNU General Public License 2.0 or later
|
||||
@contact: bdolangavitt@wesleyan.edu
|
||||
"""
|
||||
|
||||
from framework.win32.rawreg import *
|
||||
from framework.addrspace import HiveFileAddressSpace
|
||||
#from framework.win32.hashdump import get_bootkey,str_to_key
|
||||
from Crypto.Hash import MD5
|
||||
from Crypto.Cipher import ARC4,DES
|
||||
from Crypto.Hash import MD5, SHA256
|
||||
from Crypto.Cipher import ARC4, DES, AES
|
||||
|
||||
def get_lsa_key(secaddr, bootkey):
|
||||
from framework.win32.rawreg import get_root, open_key, subkeys, unpack
|
||||
from framework.addrspace import HiveFileAddressSpace
|
||||
from framework.win32.hashdump import get_bootkey, str_to_key
|
||||
|
||||
|
||||
def get_lsa_key(secaddr, bootkey, vista):
|
||||
root = get_root(secaddr)
|
||||
if not root:
|
||||
return None
|
||||
|
||||
enc_reg_key = open_key(root, ["Policy", "PolSecretEncryptionKey"])
|
||||
if vista:
|
||||
enc_reg_key = open_key(root, ["Policy", "PolEKList"])
|
||||
else:
|
||||
enc_reg_key = open_key(root, ["Policy", "PolSecretEncryptionKey"])
|
||||
|
||||
if not enc_reg_key:
|
||||
exit(1)
|
||||
return None
|
||||
|
||||
enc_reg_value = enc_reg_key.ValueList.List[0]
|
||||
@@ -40,48 +47,73 @@ def get_lsa_key(secaddr, bootkey):
|
||||
return None
|
||||
|
||||
obf_lsa_key = secaddr.read(enc_reg_value.Data.value,
|
||||
enc_reg_value.DataLength.value)
|
||||
enc_reg_value.DataLength.value)
|
||||
if not obf_lsa_key:
|
||||
return None
|
||||
|
||||
md5 = MD5.new()
|
||||
md5.update(bootkey)
|
||||
for i in range(1000):
|
||||
md5.update(obf_lsa_key[60:76])
|
||||
rc4key = md5.digest()
|
||||
if not vista:
|
||||
md5 = MD5.new()
|
||||
md5.update(bootkey)
|
||||
for __ in range(1000):
|
||||
md5.update(obf_lsa_key[60:76])
|
||||
rc4key = md5.digest()
|
||||
rc4 = ARC4.new(rc4key)
|
||||
lsa_key = rc4.decrypt(obf_lsa_key[12:60])
|
||||
lsa_key = lsa_key[0x10:0x20]
|
||||
else:
|
||||
lsa_key = decrypt_aes(obf_lsa_key, bootkey)
|
||||
lsa_key = lsa_key[68:100]
|
||||
|
||||
rc4 = ARC4.new(rc4key)
|
||||
lsa_key = rc4.decrypt(obf_lsa_key[12:60])
|
||||
return lsa_key
|
||||
|
||||
return lsa_key[0x10:0x20]
|
||||
|
||||
def decrypt_secret(secret, key):
|
||||
"""Python implementation of SystemFunction005.
|
||||
|
||||
Decrypts a block of data with DES using given key.
|
||||
Note that key can be longer than 7 bytes."""
|
||||
decrypted_data = ''
|
||||
j = 0 # key index
|
||||
for i in range(0,len(secret),8):
|
||||
enc_block = secret[i:i+8]
|
||||
block_key = key[j:j+7]
|
||||
decrypted_data = bytearray()
|
||||
j = 0 # key index
|
||||
for i in range(0, len(secret), 8):
|
||||
enc_block = secret[i:i + 8]
|
||||
block_key = key[j:j + 7]
|
||||
des_key = str_to_key(block_key)
|
||||
|
||||
des = DES.new(des_key, DES.MODE_ECB)
|
||||
decrypted_data += des.decrypt(enc_block)
|
||||
|
||||
|
||||
j += 7
|
||||
if len(key[j:j+7]) < 7:
|
||||
j = len(key[j:j+7])
|
||||
if len(key[j:j + 7]) < 7:
|
||||
j = len(key[j:j + 7])
|
||||
|
||||
(dec_data_len,) = unpack("<L", decrypted_data[:4])
|
||||
return decrypted_data[8:8+dec_data_len]
|
||||
return decrypted_data[8:8 + dec_data_len]
|
||||
|
||||
def get_secret_by_name(secaddr, name, lsakey):
|
||||
|
||||
def decrypt_aes(secret, key):
|
||||
sha = SHA256.new()
|
||||
sha.update(key)
|
||||
for _i in range(1, 1000 + 1):
|
||||
sha.update(secret[28:60])
|
||||
aeskey = sha.digest()
|
||||
|
||||
data = bytearray()
|
||||
for i in range(60, len(secret), 16):
|
||||
aes = AES.new(aeskey, AES.MODE_CBC, b"\x00" * 16)
|
||||
buf = secret[i: i + 16]
|
||||
if len(buf) < 16:
|
||||
buf += (16 - len(buf)) * b"\00"
|
||||
|
||||
data += aes.decrypt(buf)
|
||||
|
||||
return data
|
||||
|
||||
|
||||
def get_secret_by_name(secaddr, name, lsakey, vista):
|
||||
root = get_root(secaddr)
|
||||
if not root:
|
||||
return None
|
||||
|
||||
|
||||
enc_secret_key = open_key(root, ["Policy", "Secrets", name, "CurrVal"])
|
||||
if not enc_secret_key:
|
||||
return None
|
||||
@@ -91,47 +123,57 @@ def get_secret_by_name(secaddr, name, lsakey):
|
||||
return None
|
||||
|
||||
enc_secret = secaddr.read(enc_secret_value.Data.value,
|
||||
enc_secret_value.DataLength.value)
|
||||
enc_secret_value.DataLength.value)
|
||||
if not enc_secret:
|
||||
return None
|
||||
|
||||
return decrypt_secret(enc_secret[0xC:], lsakey)
|
||||
if vista:
|
||||
secret = decrypt_aes(enc_secret, lsakey)
|
||||
else:
|
||||
secret = decrypt_secret(enc_secret[0xC:], lsakey)
|
||||
|
||||
def get_secrets(Key, secaddr):
|
||||
return secret
|
||||
|
||||
|
||||
def get_secrets(sysaddr, secaddr, vista):
|
||||
root = get_root(secaddr)
|
||||
if not root:
|
||||
return None
|
||||
|
||||
bootkey = Key
|
||||
lsakey = get_lsa_key(secaddr, bootkey)
|
||||
bootkey = get_bootkey(sysaddr)
|
||||
lsakey = get_lsa_key(secaddr, bootkey, vista)
|
||||
|
||||
secrets_key = open_key(root, ["Policy", "Secrets"])
|
||||
if not secrets_key:
|
||||
print "no secret"
|
||||
return None
|
||||
|
||||
|
||||
secrets = {}
|
||||
for key in subkeys(secrets_key):
|
||||
sec_val_key = open_key(key, ["CurrVal"])
|
||||
if not sec_val_key:
|
||||
continue
|
||||
|
||||
|
||||
enc_secret_value = sec_val_key.ValueList.List[0]
|
||||
if not enc_secret_value:
|
||||
continue
|
||||
|
||||
|
||||
enc_secret = secaddr.read(enc_secret_value.Data.value,
|
||||
enc_secret_value.DataLength.value)
|
||||
enc_secret_value.DataLength.value)
|
||||
if not enc_secret:
|
||||
continue
|
||||
|
||||
secret = decrypt_secret(enc_secret[0xC:], lsakey)
|
||||
if vista:
|
||||
secret = decrypt_aes(enc_secret, lsakey)
|
||||
else:
|
||||
secret = decrypt_secret(enc_secret[0xC:], lsakey)
|
||||
|
||||
secrets[key.Name] = secret
|
||||
|
||||
return secrets
|
||||
|
||||
def get_file_secrets(Key, secfile):
|
||||
|
||||
def get_file_secrets(sysfile, secfile, vista):
|
||||
sysaddr = HiveFileAddressSpace(sysfile)
|
||||
secaddr = HiveFileAddressSpace(secfile)
|
||||
|
||||
return get_secrets(Key, secaddr)
|
||||
|
||||
return get_secrets(sysaddr, secaddr, vista)
|
||||
|
||||
@@ -23,9 +23,9 @@ from framework.newobj import Obj,Pointer
|
||||
from struct import unpack
|
||||
|
||||
ROOT_INDEX = 0x20
|
||||
LH_SIG = unpack("<H","lh")[0]
|
||||
LF_SIG = unpack("<H","lf")[0]
|
||||
RI_SIG = unpack("<H","ri")[0]
|
||||
LH_SIG = unpack("<H",b"lh")[0]
|
||||
LF_SIG = unpack("<H",b"lf")[0]
|
||||
RI_SIG = unpack("<H",b"ri")[0]
|
||||
|
||||
def get_root(address_space):
|
||||
return Obj("_CM_KEY_NODE", ROOT_INDEX, address_space)
|
||||
@@ -34,11 +34,11 @@ def open_key(root, key):
|
||||
if key == []:
|
||||
return root
|
||||
|
||||
keyname = key.pop(0)
|
||||
keyname = key.pop(0).encode()
|
||||
for s in subkeys(root):
|
||||
if s.Name.upper() == keyname.upper():
|
||||
return open_key(s, key)
|
||||
print "ERR: Couldn't find subkey %s of %s" % (keyname, root.Name)
|
||||
print("ERR: Couldn't find subkey %s of %s" % (keyname, root.Name))
|
||||
return None
|
||||
|
||||
def subkeys(key,stable=True):
|
||||
|
||||
Reference in New Issue
Block a user