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encrypt-data-using-des.yml
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rule:
meta:
name: encrypt data using DES
namespace: data-manipulation/encryption/des
authors:
- "@_re_fox"
- william.ballenthin@mandiant.com
scopes:
static: basic block
dynamic: unsupported # requires characteristic, bytes, mnemonic features
att&ck:
- Defense Evasion::Obfuscated Files or Information [T1027]
mbc:
- Defense Evasion::Obfuscated Files or Information::Encryption-Standard Algorithm [E1027.m05]
- Cryptography::Encrypt Data::3DES [C0027.004]
examples:
- 91a12a4cf437589ba70b1687f5acad19:0x47F5E8
features:
- or:
- bytes: 0e 04 0d 01 02 0f 0b 08 03 0a 06 0c 05 09 00 07 00 0f 07 04 0e 02 0d 01 0a 06 0c 0b 09 05 03 08 04 01 0e 08 0d 06 02 0b 0f 0c 09 07 03 0a 05 00 0f 0c 08 02 04 09 01 07 05 0b 03 0e 0a 00 06 0d = SBOX S1
- bytes: 0f 01 08 0e 06 0b 03 04 09 07 02 0d 0c 00 05 0a 03 0d 04 07 0f 02 08 0e 0c 00 01 0a 06 09 0b 05 00 0e 07 0b 0a 04 0d 01 05 08 0c 06 09 03 02 0f 0d 08 0a 01 03 0f 04 02 0b 06 07 0c 00 05 0e 09 = SBOX S2
- bytes: 0a 00 09 0e 06 03 0f 05 01 0d 0c 07 0b 04 02 08 0d 07 00 09 03 04 06 0a 02 08 05 0e 0c 0b 0f 01 0d 06 04 09 08 0f 03 00 0b 01 02 0c 05 0a 0e 07 01 0a 0d 00 06 09 08 07 04 0f 0e 03 0b 05 02 0c = SBOX S3
- bytes: 07 0d 0e 03 00 06 09 0a 01 02 08 05 0b 0c 04 0f 0d 08 0b 05 06 0f 00 03 04 07 02 0c 01 0a 0e 09 0a 06 09 00 0c 0b 07 0d 0f 01 03 0e 05 02 08 04 03 0f 00 06 0a 01 0d 08 09 04 05 0b 0c 07 02 0e = SBOX S4
- bytes: 02 0c 04 01 07 0a 0b 06 08 05 03 0f 0d 00 0e 09 0e 0b 02 0c 04 07 0d 01 05 00 0f 0a 03 09 08 06 04 02 01 0b 0a 0d 07 08 0f 09 0c 05 06 03 00 0e 0b 08 0c 07 01 0e 02 0d 06 0f 00 09 0a 04 05 03 = SBOX S5
- bytes: 0c 01 0a 0f 09 02 06 08 00 0d 03 04 0e 07 05 0b 0a 0f 04 02 07 0c 09 05 06 01 0d 0e 00 0b 03 08 09 0e 0f 05 02 08 0c 03 07 00 04 0a 01 0d 0b 06 04 03 02 0c 09 05 0f 0a 0b 0e 01 07 06 00 08 0d = SBOX S6
- bytes: 04 0b 02 0e 0f 00 08 0d 03 0c 09 07 05 0a 06 01 0d 00 0b 07 04 09 01 0a 0e 03 05 0c 02 0f 08 06 01 04 0b 0d 0c 03 07 0e 0a 0f 06 08 00 05 09 02 06 0b 0d 08 01 04 0a 07 09 05 00 0f 0e 02 03 0c = SBOX S7
- bytes: 0d 02 08 04 06 0f 0b 01 0a 09 03 0e 05 00 0c 07 01 0f 0d 08 0a 03 07 04 0c 05 06 0b 00 0e 09 02 07 0b 04 01 09 0c 0e 02 00 06 0a 0d 0f 03 05 08 02 01 0e 07 04 0a 08 0d 0f 0c 09 00 03 05 06 0b = SBOX S8
- bytes: 39 31 29 21 19 11 09 01 3a 32 2a 22 1a 12 0a 02 3b 33 2b 23 1b 13 0b 03 3c 34 2c 24 3f 37 2f 27 1f 17 0f 07 3e 36 2e 26 1e 16 0e 06 3d 35 2d 25 1d 15 0d 05 1c 14 0c 04 = PC1
- bytes: 0e 11 0b 18 01 05 03 1c 0f 06 15 0a 17 13 0c 04 1a 08 10 07 1b 14 0d 02 29 34 1f 25 2f 37 1e 28 33 2d 21 30 2c 31 27 38 22 35 2e 2a 32 24 1d 20 = PC2
- bytes: 3a 32 2a 22 1a 12 0a 02 3c 34 2c 24 1c 14 0c 04 3e 36 2e 26 1e 16 0e 06 40 38 30 28 20 18 10 08 39 31 29 21 19 11 09 01 3b 33 2b 23 1b 13 0b 03 3d 35 2d 25 1d 15 0d 05 3f 37 2f 27 1f 17 0f 07 = Initial Permutation
- bytes: 28 08 30 10 38 18 40 20 27 07 2f 0f 37 17 3f 1f 26 06 2e 0e 36 16 3e 1e 25 05 2d 0d 35 15 3d 1d 24 04 2c 0c 34 14 3c 1c 23 03 2b 0b 33 13 3b 1b 22 02 2a 0a 32 12 3a 1a 21 01 29 09 31 11 39 19 = Final Permutation
- bytes: 20 01 02 03 04 05 04 05 06 07 08 09 08 09 0a 0b 0c 0d 0c 0d 0e 0f 10 11 10 11 12 13 14 15 14 15 16 17 18 19 18 19 1a 1b 1c 1d 1c 1d 1e 1f 20 01 = DES Expansion
- bytes: 10 07 14 15 1d 0c 1c 11 01 0f 17 1a 05 12 1f 0a 02 08 18 0e 20 1b 03 09 13 0d 1e 06 16 0b 04 19 = PBOX
- and:
- description: DES RawProcessBlock
- number: 0x18
- number: 0x10
- number: 0x8
- number: 0x3f
- characteristic: nzxor
- count(mnemonic(shr)): 8 or more
- mnemonic: ror
- or:
- description: libtomcrypt implementation
- bytes: 38 30 28 20 18 10 08 00 39 31 29 21 19 11 09 01 3A 32 2A 22 1A 12 0A 02 3B 33 2B 23 3E 36 2E 26 1E 16 0E 06 3D 35 2D 25 1D 15 0D 05 3C 34 2C 24 1C 14 0C 04 1B 13 0B 03 = pc1
- bytes: 0D 10 0A 17 00 04 02 1B 0E 05 14 09 16 12 0B 03 19 07 0F 06 1A 13 0C 01 28 33 1E 24 2E 36 1D 27 32 2C 20 2F 2B 30 26 37 21 34 2D 29 31 23 1C 1F 00 00 00 00 00 00 00 00 = pc2
- bytes: 00 04 01 01 00 00 00 00 00 00 01 00 04 04 01 01 04 00 01 01 04 04 01 00 04 00 00 00 00 00 01 00 00 04 00 00 00 04 01 01 04 04 01 01 00 04 00 00 04 04 00 01 04 00 01 01 00 00 00 01 04 00 00 00 04 04 00 00 00 04 00 01 00 04 00 01 00 04 01 00 00 04 01 00 00 00 01 01 00 00 01 01 04 04 00 01 04 00 01 00 04 00 00 01 04 00 00 01 04 00 01 00 00 00 00 00 04 04 00 00 04 04 01 00 00 00 00 01 00 00 01 00 04 04 01 01 04 00 00 00 00 00 01 01 00 04 01 01 00 00 00 01 00 00 00 01 00 04 00 00 04 00 01 01 00 00 01 00 00 04 01 00 04 00 00 01 00 04 00 00 04 00 00 00 04 04 00 01 04 04 01 00 04 04 01 01 04 00 01 00 00 00 01 01 04 04 00 01 04 00 00 01 04 04 00 00 04 04 01 00 00 04 01 01 04 04 00 00 00 04 00 01 00 04 00 01 00 00 00 00 04 00 01 00 00 04 01 00 00 00 00 00 04 00 01 01 = SP1
- bytes: 20 80 10 80 00 80 00 80 00 80 00 00 20 80 10 00 00 00 10 00 20 00 00 00 20 00 10 80 20 80 00 80 20 00 00 80 20 80 10 80 00 80 10 80 00 00 00 80 00 80 00 80 00 00 10 00 20 00 00 00 20 00 10 80 00 80 10 00 20 00 10 00 20 80 00 80 00 00 00 00 00 00 00 80 00 80 00 00 20 80 10 00 00 00 10 80 20 00 10 00 20 00 00 80 00 00 00 00 00 80 10 00 20 80 00 00 00 80 10 80 00 00 10 80 20 80 00 00 00 00 00 00 20 80 10 00 20 00 10 80 00 00 10 00 20 80 00 80 00 00 10 80 00 80 10 80 00 80 00 00 00 00 10 80 00 80 00 80 20 00 00 00 20 80 10 80 20 80 10 00 20 00 00 00 00 80 00 00 00 00 00 80 20 80 00 00 00 80 10 80 00 00 10 00 20 00 00 80 20 00 10 00 20 80 00 80 20 00 00 80 20 00 10 00 00 80 10 00 00 00 00 00 00 80 00 80 20 80 00 00 00 00 00 80 20 00 10 80 20 80 10 80 00 80 10 00 = SP2
- bytes: 08 02 00 00 00 02 02 08 00 00 00 00 08 00 02 08 00 02 00 08 00 00 00 00 08 02 02 00 00 02 00 08 08 00 02 00 08 00 00 08 08 00 00 08 00 00 02 00 08 02 02 08 08 00 02 00 00 00 02 08 08 02 00 00 00 00 00 08 08 00 00 00 00 02 02 08 00 02 00 00 00 02 02 00 00 00 02 08 08 00 02 08 08 02 02 00 08 02 00 08 00 02 02 00 00 00 02 00 08 02 00 08 08 00 00 00 08 02 02 08 00 02 00 00 00 00 00 08 00 02 02 08 00 00 00 08 08 00 02 00 08 02 00 00 00 00 02 00 00 02 02 08 00 02 00 08 00 00 00 00 00 02 00 00 08 00 02 00 08 02 02 08 00 02 00 08 08 00 00 08 00 02 00 00 00 00 00 00 08 00 02 08 08 02 00 08 00 00 02 00 00 00 00 08 08 02 02 08 08 00 00 00 08 02 02 00 00 02 02 00 08 00 00 08 00 00 02 08 08 02 00 08 08 02 00 00 00 00 02 08 08 02 02 00 08 00 00 00 08 00 02 08 00 02 02 00 = SP3
- bytes: 01 20 80 00 81 20 00 00 81 20 00 00 80 00 00 00 80 20 80 00 81 00 80 00 01 00 80 00 01 20 00 00 00 00 00 00 00 20 80 00 00 20 80 00 81 20 80 00 81 00 00 00 00 00 00 00 80 00 80 00 01 00 80 00 01 00 00 00 00 20 00 00 00 00 80 00 01 20 80 00 80 00 00 00 00 00 80 00 01 20 00 00 80 20 00 00 81 00 80 00 01 00 00 00 80 20 00 00 80 00 80 00 00 20 00 00 80 20 80 00 81 20 80 00 81 00 00 00 80 00 80 00 01 00 80 00 00 20 80 00 81 20 80 00 81 00 00 00 00 00 00 00 00 00 00 00 00 20 80 00 80 20 00 00 80 00 80 00 81 00 80 00 01 00 00 00 01 20 80 00 81 20 00 00 81 20 00 00 80 00 00 00 81 20 80 00 81 00 00 00 01 00 00 00 00 20 00 00 01 00 80 00 01 20 00 00 80 20 80 00 81 00 80 00 01 20 00 00 80 20 00 00 00 00 80 00 01 20 80 00 80 00 00 00 00 00 80 00 00 20 00 00 80 20 80 00 = SP4
- bytes: 00 01 00 00 00 01 08 02 00 00 08 02 00 01 00 42 00 00 08 00 00 01 00 00 00 00 00 40 00 00 08 02 00 01 08 40 00 00 08 00 00 01 00 02 00 01 08 40 00 01 00 42 00 00 08 42 00 01 08 00 00 00 00 40 00 00 00 02 00 00 08 40 00 00 08 40 00 00 00 00 00 01 00 40 00 01 08 42 00 01 08 42 00 01 00 02 00 00 08 42 00 01 00 40 00 00 00 00 00 00 00 42 00 01 08 02 00 00 00 02 00 00 00 42 00 01 08 00 00 00 08 00 00 01 00 42 00 01 00 00 00 00 00 02 00 00 00 40 00 00 08 02 00 01 00 42 00 01 08 40 00 01 00 02 00 00 00 40 00 00 08 42 00 01 08 02 00 01 08 40 00 01 00 00 00 00 00 02 00 00 08 42 00 01 08 42 00 01 08 00 00 00 00 42 00 01 08 42 00 00 08 02 00 00 00 00 00 00 08 40 00 00 00 42 00 01 08 00 00 01 00 02 00 01 00 40 00 00 08 00 00 00 00 00 00 00 08 40 00 01 08 02 00 01 00 40 = SP5
- bytes: 10 00 00 20 00 00 40 20 00 40 00 00 10 40 40 20 00 00 40 20 10 00 00 00 10 40 40 20 00 00 40 00 00 40 00 20 10 40 40 00 00 00 40 00 10 00 00 20 10 00 40 00 00 40 00 20 00 00 00 20 10 40 00 00 00 00 00 00 10 00 40 00 10 40 00 20 00 40 00 00 00 40 40 00 10 40 00 20 10 00 00 00 10 00 40 20 10 00 40 20 00 00 00 00 10 40 40 00 00 40 40 20 10 40 00 00 00 40 40 00 00 40 40 20 00 00 00 20 00 40 00 20 10 00 00 00 10 00 40 20 00 40 40 00 10 40 40 20 00 00 40 00 10 40 00 00 10 00 00 20 00 00 40 00 00 40 00 20 00 00 00 20 10 40 00 00 10 00 00 20 10 40 40 20 00 40 40 00 00 00 40 20 10 40 40 00 00 40 40 20 00 00 00 00 10 00 40 20 10 00 00 00 00 40 00 00 00 00 40 20 10 40 40 00 00 40 00 00 10 00 40 00 10 40 00 20 00 00 00 00 00 40 40 20 00 00 00 20 10 00 40 00 10 40 00 20 = SP6
- bytes: 00 00 20 00 02 00 20 04 02 08 00 04 00 00 00 00 00 08 00 00 02 08 00 04 02 08 20 00 00 08 20 04 02 08 20 04 00 00 20 00 00 00 00 00 02 00 00 04 02 00 00 00 00 00 00 04 02 00 20 04 02 08 00 00 00 08 00 04 02 08 20 00 02 00 20 00 00 08 00 04 02 00 00 04 00 00 20 04 00 08 20 04 02 00 20 00 00 00 20 04 00 08 00 00 02 08 00 00 02 08 20 04 00 08 20 00 02 00 00 00 00 00 00 04 00 08 20 00 00 00 00 04 00 08 20 00 00 00 20 00 02 08 00 04 02 08 00 04 02 00 20 04 02 00 20 04 02 00 00 00 02 00 20 00 00 00 00 04 00 08 00 04 00 00 20 00 00 08 20 04 02 08 00 00 02 08 20 00 00 08 20 04 02 08 00 00 02 00 00 04 02 08 20 04 00 00 20 04 00 08 20 00 00 00 00 00 02 00 00 00 02 08 20 04 00 00 00 00 02 08 20 00 00 00 20 04 00 08 00 00 02 00 00 04 00 08 00 04 00 08 00 00 02 00 20 00 = SP7
- bytes: 40 10 00 10 00 10 00 00 00 00 04 00 40 10 04 10 00 00 00 10 40 10 00 10 40 00 00 00 00 00 00 10 40 00 04 00 00 00 04 10 40 10 04 10 00 10 04 00 00 10 04 10 40 10 04 00 00 10 00 00 40 00 00 00 00 00 04 10 40 00 00 10 00 10 00 10 40 10 00 00 00 10 04 00 40 00 04 00 40 00 04 10 00 10 04 10 40 10 00 00 00 00 00 00 00 00 00 00 40 00 04 10 40 00 00 10 00 10 00 10 40 10 04 00 00 00 04 00 40 10 04 00 00 00 04 00 00 10 04 10 00 10 00 00 40 00 00 00 40 00 04 10 00 10 00 00 40 10 04 00 00 10 00 10 40 00 00 00 40 00 00 10 00 00 04 10 40 00 04 10 00 00 00 10 00 00 04 00 40 10 00 10 00 00 00 00 40 10 04 10 40 00 04 00 40 00 00 10 00 00 04 10 00 10 00 10 40 10 00 10 00 00 00 00 40 10 04 10 00 10 04 00 00 10 04 00 40 10 00 00 40 10 00 00 40 00 04 00 00 00 00 10 00 10 04 10 = SP8