{"Id":"66be9e0a-9246-4404-b5b5-7fbde351668f","Tags":["BS_I2cIo.sys"],"Verified":"TRUE","Author":"Nasreddine Bencherchali","Created":"2023-05-06","MitreID":"T1068","Category":"vulnerable driver","Commands":{"Command":"sc.exe create BS_I2cIo.sys binPath=C:\\windows\\temp\\BS_I2cIo.sys type=kernel && sc.exe start BS_I2cIo.sys","Description":"","Usecase":"Elevate privileges","Privileges":"kernel","OperatingSystem":"Windows 10"},"Resources":["Internal Research"],"Detection":[{"type":"yara_signature","value":"https://github.com/magicsword-io/LOLDrivers/blob/main/detections/yara/yara-rules_vuln_drivers_strict_renamed.yar"},{"type":"sigma_hash","value":"https://github.com/magicsword-io/LOLDrivers/blob/main/detections/sigma/driver_load_win_vuln_drivers.yml"},{"type":"sigma_names","value":"https://github.com/magicsword-io/LOLDrivers/blob/main/detections/sigma/driver_load_win_vuln_drivers_names.yml"},{"type":"sysmon_hash_detect","value":"https://github.com/magicsword-io/LOLDrivers/blob/main/detections/sysmon/sysmon_config_vulnerable_hashes.xml"},{"type":"sysmon_hash_block","value":"https://github.com/magicsword-io/LOLDrivers/blob/main/detections/sysmon/sysmon_config_vulnerable_hashes_block.xml"}],"Acknowledgement":{"Person":"","Handle":""},"KnownVulnerableSamples":[{"Filename":"BS_I2cIo.sys","MD5":"3c4154866f3d483fdc9f4f64ef868888","SHA1":"f7ce71891738a976cd8d4b516c8d7a8e2f6b0ad6","SHA256":"42e170a7ab1d2c160d60abfc906872f9cfd0c2ee169ed76f6acb3f83b3eeefdb","Authentihash":{"MD5":"2e6a361506f00fc7de30642776c8d3be","SHA1":"862fef3d6a6d7488ef4d6f7799ac296cd96256b7","SHA256":"21af8e034ca42ab24a5d1623f70de9c66eeea63d72aeb0f1846b1e04dbdf4f51"},"Description":"I/O Interface driver file","Company":"BIOSTAR Group","InternalName":"I/O driver","OriginalFilename":"BS_I2cIo.sys","FileVersion":"1, 1, 0, 0","Product":"BIOSTAR I/O driver fle","ProductVersion":"1, 1, 0, 0","Copyright":"Copyright (c) 2002-2006 BIOSTAR Group","MachineType":"AMD64","Imports":["ntoskrnl.exe","HAL.dll"],"ExportedFunctions":"","ImportedFunctions":["KeInitializeEvent","ExAllocatePoolWithTag","ExFreePoolWithTag","ObfDereferenceObject","KeWaitForSingleObject","ExInterlockedInsertTailList","RtlTimeToTimeFields","PsTerminateSystemThread","ZwWriteFile","ExInterlockedRemoveHeadList","KeSetPriorityThread","ZwCreateFile","RtlInitUnicodeString","PsCreateSystemThread","IoCreateSymbolicLink","IoCreateDevice","IoDeleteSymbolicLink","IoStartNextPacket","IoReleaseCancelSpinLock","IoAcquireCancelSpinLock","MmUnmapIoSpace","MmMapIoSpace","KeRemoveEntryDeviceQueue","IoStartPacket","IofCompleteRequest","ObReferenceObjectByHandle","ZwClose","IoDeleteDevice","KeSetEvent","HalSetBusDataByOffset","HalTranslateBusAddress","HalGetBusDataByOffset"],"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":"01e446b33b457f7513877e5f43de468ecb8abdb64741bccccc7491d8ce395195a4a6b547c0efd2da7b8f5711f4328c7ccd3fee42da04214af7c843884a6f5cca14fc4bd19f4cbdd4556ecc02be0da6888f8609baa425bde8b0f0fa8b714e67b0cb82a8d78e55f737ebf03e88efe4e08afd1c6e2e61414875b4b02c1d28d8490fd715f02473253ccc880cde284c6554fe5eae8cea19ad2c51b29b3a47f53c80350117e24987d6544afb4bab07bcbf7d79cfbf35005cbb9ecffc82891b39a05197b6dec0b307ff449644c0342a195cabeef03bec294eb513c537857e75d5b4d60d066eb5d26c237167eaf1718eaf4e74aa0cf9ecbf4c58fa5e909b6d39cb86883f8b1ca81632d5fe6db9f1f8b3ead791f6364778c0272a15c768d6f4c5fc4f4ec8673f102d409ff11ec96148e7a703fc31730cf04688fe56da492995ef09daa3e5beef60ecd954a0599c28bd54ef66157f874c84dba60e95672e517b3439b641c28c846826dc240209e7818e0a972defeea7b998a60f818dc710b5e1ed982f486f53854964789bec5dac970b5526c3efba8dc8d1a52f5a7f936b611a339b18b8a26210de24ea76e12f43ebecdd7c12342489da2855aee5754e312b6763b6a8d7ab730a03cec5ea593fc7eb2a45aea8625b2f009939abb45f73c308ec80118f470e8f2a1343e191066255bbffba3da9a93d260faeca7d628b155589d694344dd665","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}]}],"RichPEHeaderHash":{"MD5":"4ed2618a21b160612d932949de7cc9c1","SHA1":"c8532f6c93c3309ef18d1af84e23974e37c416c9","SHA256":"b6afffab9ad144e0b85cfb4291c424fe49ccb7755d35ecc957a676995d30d30a"},"Sections":{".text":{"Entropy":5.498248181512732,"Virtual Size":"0x2de0"},".rdata":{"Entropy":4.75791853939054,"Virtual Size":"0xa34"},".data":{"Entropy":2.072964022170868,"Virtual Size":"0x478"},".pdata":{"Entropy":3.8957107229710917,"Virtual Size":"0x174"},"PAGE":{"Entropy":5.049224790555508,"Virtual Size":"0x14b"},"INIT":{"Entropy":5.468703078901586,"Virtual Size":"0x7e4"},".rsrc":{"Entropy":3.2817760862665835,"Virtual Size":"0x408"},".reloc":{"Entropy":3.593030469985413,"Virtual Size":"0xf8"}},"MagicHeader":"50 45 0 0","CreationTimestamp":"2006-12-11 02:48:39","Imphash":"f939ef0b7f792672866386600f82aa04","LoadsDespiteHVCI":"FALSE"}]}