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Merge pull request #806 from sara-rn/master
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updated translation tables
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williballenthin authored Aug 1, 2023
2 parents a49c174 + 7cc3bb4 commit 6691e9b
Showing 1 changed file with 11 additions and 2 deletions.
Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ rule:
namespace: data-manipulation/encoding/base64
authors:
- [email protected]
- [email protected]
scope: function
att&ck:
- Defense Evasion::Obfuscated Files or Information [T1027]
Expand All @@ -12,6 +13,7 @@ rule:
- Data::Encode Data::Base64 [C0026.001]
examples:
- 9efa86b43b4367bcdc1591aee59bda25:0x10001000
- 09bf850be5da44a1c3629a1f62813a83:0x10001100
features:
- and:
- mnemonic: shl
Expand All @@ -23,5 +25,12 @@ rule:
- number: 3
- number: 4
- number: 6
- number: 0xF
- bytes: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 3E 00 00 00 FF FF FF FF FF FF FF FF FF FF FF FF 3F 00 00 00 34 00 00 00 35 00 00 00 36 00 00 00 37 00 00 00 38 00 00 00 39 00 00 00 3A 00 00 00 3B 00 00 00 3C 00 00 00 3D 00 00 00 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF = hardcoded base64 translation table (first 64 of 256 dwords)
- or:
- number: 0xF
- number: 0x3D
- number: 0x40
- or:
- bytes: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 3E 00 00 00 FF FF FF FF FF FF FF FF FF FF FF FF 3F 00 00 00 34 00 00 00 35 00 00 00 36 00 00 00 37 00 00 00 38 00 00 00 39 00 00 00 3A 00 00 00 3B 00 00 00 3C 00 00 00 3D 00 00 00 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF = hardcoded base64 translation table (first 64 of 256 dwords)
- bytes: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 3E FF FF FF 3F 34 35 36 37 38 39 3A 3B 3C 3D FF FF FF FF FF FF FF 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 FF FF FF FF FF FF 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 FF FF FF FF FF = hardcoded base64 translation table
- bytes: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3E 00 00 00 3F 00 00 00 3E 00 00 00 3E 00 00 00 3F 00 00 00 34 00 00 00 35 00 00 00 36 00 00 00 37 00 00 00 38 00 00 00 39 00 00 00 3A 00 00 00 3B 00 00 00 3C 00 00 00 3D 00 00 00
- string: "BBBBBBBBBB@BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB>BBB?456789:;<=BBBABBB"

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