{"Id":"e299b0b6-e5e2-45b3-bf0b-c008068cebfa","Tags":["BS_Flash64.sys"],"Verified":"TRUE","Author":"Michael Haag","Created":"2023-01-09","MitreID":"T1068","Category":"vulnerable driver","Commands":{"Command":"sc.exe create BS_Flash64.sys binPath=C:\\windows\\temp\\BS_Flash64.sys type=kernel && sc.exe start BS_Flash64.sys","Description":"","OperatingSystem":"Windows 10","Privileges":"kernel","Usecase":"Elevate privileges"},"Resources":["https://github.com/eclypsium/Screwed-Drivers/blob/master/DRIVERS.md"],"Detection":[],"Acknowledgement":{"Handle":"","Person":""},"KnownVulnerableSamples":[{"Authentihash":{"MD5":"cf428ad377e1fd1a045e058b896fcee2","SHA1":"5107438a02164e1bcedd556a786f37f59cd04231","SHA256":"543c3f024e4affd0aafa3a229fa19dbe7a70972bb18ed6347d3492dd174edac5"},"Company":"","Copyright":"","CreationTimestamp":"2007-08-21 04:38:26","Date":"","Description":"","ExportedFunctions":"","FileVersion":"","Filename":"BS_Flash64.sys","ImportedFunctions":["IoDeleteDevice","RtlFreeUnicodeString","IoCreateSymbolicLink","IoCreateDevice","RtlAnsiStringToUnicodeString","RtlInitString","IofCompleteRequest","MmMapLockedPages","IoDeleteSymbolicLink","RtlInitUnicodeString","ExFreePoolWithTag","ExAllocatePoolWithTag","MmUnmapIoSpace","MmMapIoSpace","KeBugCheckEx"],"Imports":["ntoskrnl.exe"],"InternalName":"","MD5":"f5051c756035ef5de9c4c48bacb0612b","MachineType":"AMD64","MagicHeader":"50 45 0 0","OriginalFilename":"","Product":"","ProductVersion":"","Publisher":"","RichPEHeaderHash":{"MD5":"f611e8b47daf79029d2e777e3071d939","SHA1":"2dc185768c738521fb43db6d6b100bb04d43177f","SHA256":"66f092383abb8b873a957d01b5079e4f2b52a63770dcf68fff59410500f5974f"},"SHA1":"e83458c4a6383223759cd8024e60c17be4e7c85f","SHA256":"86a8e0aa29a5b52c84921188cc1f0eca9a7904dcfe09544602933d8377720219","Sections":{".text":{"Entropy":5.928404971671749,"Virtual Size":"0x78e"},".rdata":{"Entropy":4.478088869880772,"Virtual Size":"0x1a4"},".data":{"Entropy":0.4917211838342579,"Virtual Size":"0x120"},".pdata":{"Entropy":3.2547080358712224,"Virtual Size":"0x78"},"INIT":{"Entropy":4.87693704487193,"Virtual Size":"0x262"}},"Signature":["BIOSTAR MICROTECH INT'L CORP","VeriSign Class 3 Code Signing 2004 CA","VeriSign Class 3 Public Primary CA"],"Signatures":[{"CertificatesInfo":"","SignerInfo":"","Certificates":[{"Subject":"C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Terms of use at https://www.verisign.com/rpa (c)04, CN=VeriSign Class 3 Code Signing 2004 CA","ValidFrom":"2004-07-16 00:00:00","ValidTo":"2014-07-15 23:59:59","Signature":"ae3a17b84a7b55fa6455ec40a4ed494190999c89bcaf2e1dca7823f91c190f7feb68bc32d98838dedc3fd389b43fb18296f1a45abaed2e26d3de7c016e000a00a4069211480940f91c1879672324e0bbd5e150ae1bf50edde02e81cd80a36c524f9175558aba22f2d2ea4175882f63557d1e545a9559cad93481c05f5ef67ab5","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":true,"SerialNumber":"4191a15a3978dfcf496566381d4c75c2","Version":3,"CertificateType":"CA","IsCodeSigning":true,"IsCA":true,"TBS":{"MD5":"41011f8d0e7c7a6408334ca387914c61","SHA1":"c7fc1727f5b75a6421a1f95c73bbdb23580c48e5","SHA256":"88dd3952638ee82738c03168e6fd863fe4eab1059ee5e2926ad8cb587c255dc0","SHA384":"a00aa5ed457c41e37967882644d63366bae014f03a986576d8514164d7027acf7d0b5e03d764db2558f60db148954459"}},{"Subject":"C=US, O=VeriSign, Inc., OU=Class 3 Public Primary Certification Authority","ValidFrom":"2006-05-23 17:01:29","ValidTo":"2016-05-23 17:11:29","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":true,"SerialNumber":"610c120600000000001b","Version":3,"CertificateType":"Intermediate","IsCodeSigning":false,"IsCA":false,"TBS":{"MD5":"53c41bc1164e09e0cd1617a5bf913efd","SHA1":"93c03aac8951d494ecd5696b1c08658541b18727","SHA256":"40bddadac24dc61ca4fb5cab2a2bc5d876bc36808311039a7a3e1a4066f7489b","SHA384":"f51d4e75ba638f7314cd59b8d6d45f3b34d35ce6986e9d205cd6f333e8e8d8e9c91f636e6bc84731b6661673f40963d8"}},{"Subject":"C=TW, ST=TAIPEI HSIEN, L=HSIN TIEN, O=BIOSTAR MICROTECH INT'L CORP, OU=Digital ID Class 3 , Microsoft Software Validation v2, OU=BMA;BMG, CN=BIOSTAR MICROTECH INT'L CORP","ValidFrom":"2006-09-25 00:00:00","ValidTo":"2007-10-20 23:59:59","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":false,"SerialNumber":"49a570277854e9481d38e34c081226ee","Version":3,"CertificateType":"Leaf (Code Signing)","IsCodeSigning":true,"IsCA":false,"TBS":{"MD5":"27a32ddae1fd74f01b6324484fb5995a","SHA1":"d68dfe595f9f0f94672e1a7b876a2987ba81e675","SHA256":"66ef4bb0b353d5f97d46898668f3ea82ac36dd6bf50e70b84fa9a19568fec33f","SHA384":"db35c2600ef6f07d526d98a2a67e5bc86d2e18d596d4e0e27a1f28e4fa3f88a46bdb554c99ede8158a74554492c3f4ad"}}],"Signer":[{"SerialNumber":"49a570277854e9481d38e34c081226ee","Issuer":"C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Terms of use at https://www.verisign.com/rpa (c)04, CN=VeriSign Class 3 Code Signing 2004 CA","Version":1}]}],"Imphash":"7a4a0df0bde1f8da6547a580d5bee7c3","LoadsDespiteHVCI":"FALSE"}]}