26 lines
951 B
Text
26 lines
951 B
Text
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/*
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Yara Rule Set
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Author: Florian Roth
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Date: 2017-07-15
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Identifier: CHAOS
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Reference: https://github.com/tiagorlampert/CHAOS
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*/
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/* Rule Set ----------------------------------------------------------------- */
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rule CHAOS_Payload {
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meta:
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description = "Detects a CHAOS back connect payload"
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license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
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author = "Florian Roth (Nextron Systems)"
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reference = "https://github.com/tiagorlampert/CHAOS"
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date = "2017-07-15"
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score = 80
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hash1 = "0962fcfcb1b52df148720c2112b036e75755f09279e3ebfce1636739af9b4448"
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hash2 = "5c3553345f824b7b6de09ccb67d834e428b8df17443d98816471ca28f5a11424"
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id = "5057bc68-9bf8-54b4-88a1-d0c0cba62fa0"
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strings:
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$x1 = { 2F 43 48 41 4F 53 00 02 73 79 6E 63 2F 61 74 6F 6D 69 63 }
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condition:
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( uint16(0) == 0x5a4d and filesize < 15000KB and all of them )
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}
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