41 lines
1.6 KiB
Text
41 lines
1.6 KiB
Text
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/*
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Yara Rule Set
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Author: Florian Roth
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Date: 2017-12-11
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Identifier: Patchwork
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Reference: https://goo.gl/Pg3P4W
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*/
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/* Rule Set ----------------------------------------------------------------- */
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rule xRAT_1 {
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meta:
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description = "Detects Patchwork malware"
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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://goo.gl/Pg3P4W"
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date = "2017-12-11"
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hash1 = "92be93ec4cbe76182404af0b180871fbbfa3c7b34e4df6745dbcde480b8b4b3b"
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hash2 = "f1a45adcf907e660ec848c6086e28c9863b7b70d0d38417dd05a4261973c955a"
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id = "170c926a-2020-5269-85b8-6fe9ad28ef76"
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strings:
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$x1 = "\" -CHECK & PING -n 2 127.0.0.1 & EXIT" fullword wide
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$x2 = "xClient.Core.Elevation" fullword ascii
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$x3 = ">> Welcome to MAX-Shell :Session created" fullword wide
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$x4 = "xClient.Properties.Resources.resources" fullword ascii
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$x5 = "<description>My UAC Compatible application</description>" fullword ascii
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$s1 = "ping -n 20 localhost > nul" fullword wide
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$s2 = "DownloadAndExecute" fullword ascii
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$s3 = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.114 Safari/537.36" fullword wide
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$s4 = "Client.exe" fullword ascii
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$s5 = "Microsoft -Defender" fullword wide
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$s6 = "Microsoft- Defender" fullword wide
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$s7 = "set_RunHidden" fullword ascii
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condition:
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uint16(0) == 0x5a4d and filesize < 1000KB and (
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1 of ($x*) or
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3 of them
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)
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}
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