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21 lines
771 B
Plaintext
21 lines
771 B
Plaintext
rule PLEAD_Downloader_Jun18_1 {
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meta:
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description = "Detects PLEAD Downloader"
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license = "https://creativecommons.org/licenses/by-nc/4.0/"
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author = "Florian Roth"
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reference = "https://blog.jpcert.or.jp/2018/06/plead-downloader-used-by-blacktech.html"
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date = "2018-06-16"
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hash1 = "a26df4f62ada084a596bf0f603691bc9c02024be98abec4a9872f0ff0085f940"
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strings:
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$s1 = "%02d:%02d:%02d" ascii fullword
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$s2 = "%02d-%02d-%02d" ascii fullword
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$s3 = "1111%02d%02d%02d_%02d%02d2222" ascii fullword
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$a1 = "Scanning..." wide fullword
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$a2 = "Checking..." wide fullword
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condition:
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uint16(0) == 0x5a4d and filesize < 200KB and (
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all of ($s*) or
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( 2 of ($s*) and 1 of ($a*) )
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)
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}
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