23 lines
798 B
Text
23 lines
798 B
Text
rule malrtf_ole2link : exploit {
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meta:
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author = "@h3x2b <tracker _AT h3x.eu>"
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description = "Detects weaponized RTF documents with OLE2Link exploit"
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id = "5080e79a-3abc-5fc3-902e-b362f20510f9"
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strings:
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//having objdata structure
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$rtf_olelink_01 = "\\objdata" nocase
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//hex encoded OLE2Link
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$rtf_olelink_02 = "4f4c45324c696e6b" nocase
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//hex encoded docfile magic - doc file albilae
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$rtf_olelink_03 = "d0cf11e0a1b11ae1" nocase
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//hex encoded "http://"
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$rtf_payload_01 = "68007400740070003a002f002f00" nocase
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//hex encoded "https://"
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$rtf_payload_02 = "680074007400700073003a002f002f00" nocase
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//hex encoded "ftp://"
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$rtf_payload_03 = "6600740070003a002f002f00" nocase
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condition:
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uint32be(0) == 0x7B5C7274
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and all of ($rtf_olelink_*)
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and any of ($rtf_payload_*)
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}
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