23 lines
943 B
Text
23 lines
943 B
Text
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rule CrunchRAT {
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meta:
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description = "Detects CrunchRAT - file CrunchRAT.exe"
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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/t3ntman/CrunchRAT"
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date = "2017-11-03"
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hash1 = "58a07e96497745b6fd5075d569f17b0254c3e50b0234744e0487f7c5dddf7161"
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id = "da7d9b5c-6ccc-5960-9daa-4df612545751"
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strings:
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$x1 = "----CrunchRAT" fullword wide
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$x2 = "\\Debug\\CrunchRAT" ascii
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$x3 = "\\Release\\CrunchRAT" ascii
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$s1 = "runCommand" fullword ascii
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$s2 = "<action>download<action>" fullword wide
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$s3 = "Content-Disposition: form-data; name=action" fullword wide
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$s4 = "<action>upload<action>" fullword wide
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$s5 = "/update.php" fullword wide
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condition:
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uint16(0) == 0x5a4d and filesize < 40KB and ( 1 of ($x*) and 3 of them )
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}
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