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15 lines
504 B
Plaintext
15 lines
504 B
Plaintext
rule SUSP_Bad_PDF {
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meta:
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description = "Detects PDF that embeds code to steal NTLM hashes"
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author = "Florian Roth, Markus Neis"
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reference = "Internal Research"
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date = "2018-05-03"
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hash1 = "d8c502da8a2b8d1c67cb5d61428f273e989424f319cfe805541304bdb7b921a8"
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strings:
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$s1 = " /F (http//" ascii
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$s2 = " /F (\\\\\\\\" ascii
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$s3 = "<</F (\\\\" ascii
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condition:
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( uint32(0) == 0x46445025 or uint32(0) == 0x4450250a ) and 1 of them
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}
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