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protect

dpapi::protect protects data via a DPAPI call. It has the following command line arguments:

  • /c: displays the output as a C programming language char array

  • /out: save the results to a file

  • /data: the data to encrypt

  • /system: the data are encrypted under the system account context. It will be visible in the flags : system

  • /prompt: the Mimikatz's additional DPAPI prompt GUI

  • /entropy: the entropy for the encryption

  • /machine: The data are encrypted under the machine account context. It will be visible in the flags : local_machine

  • /description: provide a description for the blob data

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It must be noted that during our tests when using the /system parameter, even running Mimikatz with token::elevate, the following error was raised

mimikatz # dpapi::protect /data:"Hello Mimikatz" /system
data : Hello Mimikatz description : flags : system ; prompt flags: entropy :
ERROR kuhl_m_dpapi_protect ; CryptProtectData (0x00000057)

Searching on Google the error code displayed this linkarrow-up-right

mimikatz # dpapi::protect /data:"Hello Mimikatz"

data        : Hello Mimikatz
description :
flags       :
prompt flags:
entropy     :

**BLOB**
  dwVersion          : 00000001 - 1
  guidProvider       : {df9d8cd0-1501-11d1-8c7a-00c04fc297eb}
  dwMasterKeyVersion : 00000001 - 1
  guidMasterKey      : {5c22983f-77ee-41e4-9086-8073d664e417}
  dwFlags            : 00000000 - 0 ()
  dwDescriptionLen   : 00000002 - 2
  szDescription      :
  algCrypt           : 00006603 - 26115 (CALG_3DES)
  dwAlgCryptLen      : 000000c0 - 192
  dwSaltLen          : 00000010 - 16
  pbSalt             : a912cfd0a5981bd1176cfa3a46f613e9
  dwHmacKeyLen       : 00000000 - 0
  pbHmackKey         :
  algHash            : 00008004 - 32772 (CALG_SHA1)
  dwAlgHashLen       : 000000a0 - 160
  dwHmac2KeyLen      : 00000010 - 16
  pbHmack2Key        : 8966a81153fbeecaa0f27257870c4d64
  dwDataLen          : 00000020 - 32
  pbData             : a61e42e1f1e13c06e9f45f1f813ecb8f91967195018745caf774f910e9bdf2cb
  dwSignLen          : 00000014 - 20
  pbSign             : 585b4a5b91aab83f82438508a082258af88296bb


Blob:
01 00 00 00 d0 8c 9d df 01 15 d1 11 8c 7a 00 c0
4f c2 97 eb 01 00 00 00 3f 98 22 5c ee 77 e4 41
90 86 80 73 d6 64 e4 17 00 00 00 00 02 00 00 00
00 00 03 66 00 00 c0 00 00 00 10 00 00 00 a9 12
cf d0 a5 98 1b d1 17 6c fa 3a 46 f6 13 e9 00 00
00 00 04 80 00 00 a0 00 00 00 10 00 00 00 89 66
a8 11 53 fb ee ca a0 f2 72 57 87 0c 4d 64 20 00
00 00 a6 1e 42 e1 f1 e1 3c 06 e9 f4 5f 1f 81 3e
cb 8f 91 96 71 95 01 87 45 ca f7 74 f9 10 e9 bd
f2 cb 14 00 00 00 58 5b 4a 5b 91 aa b8 3f 82 43
85 08 a0 82 25 8a f8 82 96 bb

Example output with the /c parameter:

Save the blob results to a file:

The following picture demonstrates an example when the /prompt argument is used:

DPAPI Prompt
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