31 lines
1.2 KiB
Text
31 lines
1.2 KiB
Text
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rule crime_ole_loadswf_cve_2018_4878 {
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meta:
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description = "Detects CVE-2018-4878"
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vuln_type = "Remote Code Execution"
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vuln_impact = "Use-after-free"
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affected_versions = "Adobe Flash 28.0.0.137 and earlier versions"
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mitigation0 = "Implement Protected View for Office documents"
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mitigation1 = "Disable Adobe Flash"
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weaponization = "Embedded in Microsoft Office first payloads"
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actor = "Purported North Korean actors"
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reference = "hxxps://www[.]krcert[.]or[.kr/data/secNoticeView.do?bulletin_writing_sequence=26998"
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author = "Vitali Kremez, Flashpoint"
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version = "1.1"
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id = "44797bbc-693b-5fcb-a4a4-4ebf3f4da725"
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strings:
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// EMBEDDED FLASH OBJECT BIN HEADER
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$header = "rdf:RDF" wide ascii
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// OBJECT APPLICATION TYPE TITLE
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$title = "Adobe Flex" wide ascii
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// PDB PATH
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$pdb = "F:\\work\\flash\\obfuscation\\loadswf\\src" wide ascii
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// LOADER STRINGS
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$s0 = "URLRequest" wide ascii
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$s1 = "URLLoader" wide ascii
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$s2 = "loadswf" wide ascii
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$s3 = "myUrlReqest" wide ascii
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condition:
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filesize < 500KB and all of ($header*) and
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all of ($title*) and 3 of ($s*) or all of ($pdb*) and all of ($header*) and 1 of ($s*)
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}
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