19 lines
751 B
Text
19 lines
751 B
Text
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rule Shellcode_APIHashing_FIN8 {
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meta:
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description = "Detects FIN8 Shellcode APIHashing"
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author = "Frank Boldewin (@r3c0nst)"
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date = "2021-03-16"
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reference = "https://www.bitdefender.com/files/News/CaseStudies/study/394/Bitdefender-PR-Whitepaper-BADHATCH-creat5237-en-EN.pdf"
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id = "bca5601c-2998-545b-8dd0-ec3c861e6291"
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strings:
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$APIHashing32bit1 = {81 F7 99 5D 52 69 81 F3 30 D7 00 AB}
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$APIHashing32bit2 = {68 F2 55 03 88 68 65 19 6D 1E}
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$APIHashing32bit3 = {68 9B 59 27 21 C1 E9 17 33 4C 24 10 68 37 5C 32 F4}
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$APIHashing64bit1 = {49 BF 65 19 6D 1E F2 55 03 88 49 BE 37 5C 32 F4 9B 59 27 21}
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$APIHashing64bit2 = {48 B8 99 5D 52 69 30 D7 00 AB}
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condition:
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all of ($APIHashing32bit*) or all of ($APIHashing64bit*)
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}
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