31 lines
929 B
Text
31 lines
929 B
Text
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import "pe"
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/*
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Yara Rule Set
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Author: Florian Roth
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Date: 2017-10-24
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Identifier: Kasper
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Reference: Internal Research
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*/
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/* Rule Set ----------------------------------------------------------------- */
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rule KasperMalware_Oct17_1 {
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meta:
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description = "Detects Kasper Backdoor"
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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 = "Internal Research"
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date = "2017-10-24"
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hash1 = "758bdaf26a0bd309a5458cb4569fe1c789cf5db087880d6d1676dec051c3a28d"
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id = "7201d8ee-50ee-5a5c-a5b8-ee36c78b0d6e"
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strings:
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$x1 = "\\Release\\kasper.pdb" ascii
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$x2 = "C:\\D@oc@um@en@ts a@nd Set@tings\\Al@l Users" wide
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condition:
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uint16(0) == 0x5a4d and filesize < 7000KB and (
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pe.imphash() == "2bceb64cf37acd34bc33b38f2cddfb61" or
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1 of them
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)
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}
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