23 lines
721 B
Text
23 lines
721 B
Text
rule COATHANGER_beacon
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{
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meta:
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description = "Detects COATHANGER beaconing code (GET / HTTP/2\nHost: www.google.com\n\n)"
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malware = "COATHANGER"
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author = "NLD MIVD - JSCU"
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date = "20240206"
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report = "https://www.ncsc.nl/documenten/publicaties/2024/februari/6/mivd-aivd-advisory-coathanger-tlp-clear"
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strings:
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$chunk_1 = {
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48 B8 47 45 54 20 2F 20 48 54
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48 89 45 B0
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48 B8 54 50 2F 32 0A 48 6F 73
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48 89 45 B8
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48 B8 74 3A 20 77 77 77 2E 67
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48 89 45 C0
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48 B8 6F 6F 67 6C 65 2E 63 6F
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}
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condition:
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uint32(0) == 0x464c457f and filesize < 5MB and
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any of them
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}
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