6fe10a55-7fb8-4a9d-9ebc-1b27b6e5b833

prokiller64.sys :inline :inline

Description

Signed POORTRY Samples

  • UUID: 6fe10a55-7fb8-4a9d-9ebc-1b27b6e5b833
  • Created: 2023-05-07
  • Author: Guus Verbeek
  • Acknowledgement: |

Download

This download link contains the malicious driver!

Commands

sc.exe create prokiller64.sys binPath=C:\windows\temp\prokiller64.sys type=kernel && sc.exe start prokiller64.sys
Use CasePrivilegesOperating System
Elevate privilegeskernelWindows 10

Detections

YARA 🏹

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Exact Match

with header and size limitation

Threat Hunting

without header and size limitation

Sigma 🛡️

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Names

detects loading using name only

Hashes

detects loading using hashes only

Sysmon 🔎

Expand

Block

on hashes

Alert

on hashes

Resources


  • https://www.mandiant.com/resources/blog/hunting-attestation-signed-malware
  • https://news.sophos.com/en-us/2022/12/13/signed-driver-malware-moves-up-the-software-trust-chain/

    • Known Vulnerable Samples

    PropertyValue
    Filenameprokiller64.sys
    Creation Timestamp2022-06-02 04:09:08
    MD510f3679384a03cb487bda9621ceb5f90
    SHA131cc8718894d6e6ce8c132f68b8caaba39b5ba7a
    SHA2560440ef40c46fdd2b5d86e7feef8577a8591de862cfd7928cdbcc8f47b8fa3ffc
    Authentihash MD54252d83e18ad41f0cea7ac168218d95b
    Authentihash SHA1cf9cb05c9b725efca68c4b7d6f53c8e233217ac4
    Authentihash SHA256cd66e893300e7e59a749fe4e1b1706f8ccb5ae140254def9f5a614648e2da36f
    RichPEHeaderHash MD5a7d4acb55095eb7efa7945ef805fcf8b
    RichPEHeaderHash SHA110103bfe4f9a5b22c45d64354f88be415249f384
    RichPEHeaderHash SHA25658bcb1d3215317fc95d1b8ddef6945aead4de70049db273b0d4a82a7e22b38d8

    Download

    Certificates

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    Certificate 627dfdf73a1455de5143a270799e6b7b
    FieldValue
    ToBeSigned (TBS) MD5b91ec3270e80aa93214c42d1eed66d36
    ToBeSigned (TBS) SHA1c27a40cbc754d2bb1f7b872a5a9fd385ff1c2b2f
    ToBeSigned (TBS) SHA2567b4a9879162ce64e75cca2bcc675be06dacb6c9eeae4df6c929080b4db819cd4
    SubjectC=CN, ST=guangdong, L=zhuhai, O=Zhuhai liancheng Technology Co., Ltd., OU=Digital ID Class 3 , Microsoft Software Validation v2, CN=Zhuhai liancheng Technology Co., Ltd.
    ValidFrom2013-02-04 00:00:00
    ValidTo2014-02-04 23:59:59
    Signature6eb0af9de955b9bd1bda967942685c5b630bf60dd0be149178bce893c7c32039076006dd75f9655b497470e44e7954cd89fe4ee04a580992f0ee9268e8129afcf0b58519158d6864e56caa6e78d66b0278a86083b751cf8a030ba0139969509259e5d1ea91dc593e1d093fb5e4ebabe1a38359d920acb85f9c02f6939096522b010158d086bc5ff52bbe2be1ab364ca496ed5a3ac72531274daf4e808d483686118d6132d2b98018074a0e989eed4f43fe28298363e05e9c3cace4a954525ac021e0b10445e09a3528eff35b525e7cca44332744aa81b41dd4244ec54da168b2f1026a23ca9b9929199f037689956b69c21ca77e6605483439670dcf9baf2991
    SignatureAlgorithmOID1.2.840.113549.1.1.5
    IsCertificateAuthorityFalse
    SerialNumber627dfdf73a1455de5143a270799e6b7b
    Version3
    Certificate 611993e400000000001c
    FieldValue
    ToBeSigned (TBS) MD578a717e082dcc1cda3458d917e677d14
    ToBeSigned (TBS) SHA14a872e0e51f9b304469cd1dedb496ee9b8b983a4
    ToBeSigned (TBS) SHA256317fa1d234ebc49040ebc5e8746f8997471496051b185a91bdd9dfbb23fab5f8
    SubjectC=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=(c) 2006 VeriSign, Inc. , For authorized use only, CN=VeriSign Class 3 Public Primary Certification Authority , G5
    ValidFrom2011-02-22 19:25:17
    ValidTo2021-02-22 19:35:17
    Signature812a82168c34672be503eb347b8ca2a3508af45586f11e8c8eae7dee0319ce72951848ad6211fd20fd3f4706015ae2e06f8c152c4e3c6a506c0b36a3cf7a0d9c42bc5cf819d560e369e6e22341678c6883762b8f93a32ab57fbe59fba9c9b2268fcaa2f3821b983e919527978661ee5b5d076bcd86a8e26580a8e215e2b2be23056aba0cf347934daca48c077939c061123a050d89a3ec9f578984fbecca7c47661491d8b60f195de6b84aacbc47c8714396e63220a5dc7786fd3ce38b71db7b9b03fcb71d3264eb1652a043a3fa2ead59924e7cc7f233424838513a7c38c71b242228401e1a461f17db18f7f027356cb863d9cdb9645d2ba55eefc629b4f2c7f821cc04ba57fd01b6abc667f9e7d3997ff4f522fa72f5fdff3a1c423aa1f98018a5ee8d1cd4669e4501feaaeefffb178f30f7f1cd29c59decb5d549003d85b8cbbb933a276a49c030ae66c9f723283276f9a48356c848ce5a96aaa0cc0cc47fb48e97af6de35427c39f86c0d6e473089705dbd054625e0348c2d59f7fa7668cd09db04fd4d3985f4b7ac97fb22952d01280c70f54b61e67cdc6a06c110384d34875e72afeb03b6e0a3aa66b769905a3f177686133144706fc537f52bd92145c4a246a678caf8d90aad0f679211b93267cc3ce1ebd883892ae45c6196a4950b305f8ae59378a6a250394b1598150e8ba8380b72335f476b9671d5918ad208d94
    SignatureAlgorithmOID1.2.840.113549.1.1.5
    IsCertificateAuthorityTrue
    SerialNumber611993e400000000001c
    Version3
    Certificate 5200e5aa2556fc1a86ed96c9d44b33c7
    FieldValue
    ToBeSigned (TBS) MD5b30c31a572b0409383ed3fbe17e56e81
    ToBeSigned (TBS) SHA14843a82ed3b1f2bfbee9671960e1940c942f688d
    ToBeSigned (TBS) SHA25603cda47a6e654ed85d932714fc09ce4874600eda29ec6628cfbaeb155cab78c9
    SubjectC=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Terms of use at https://www.verisign.com/rpa (c)10, CN=VeriSign Class 3 Code Signing 2010 CA
    ValidFrom2010-02-08 00:00:00
    ValidTo2020-02-07 23:59:59
    Signature5622e634a4c461cb48b901ad56a8640fd98c91c4bbcc0ce5ad7aa0227fdf47384a2d6cd17f711a7cec70a9b1f04fe40f0c53fa155efe749849248581261c911447b04c638cbba134d4c645e80d85267303d0a98c646ddc7192e645056015595139fc58146bfed4a4ed796b080c4172e737220609be23e93f449a1ee9619dccb1905cfc3dd28dac423d6536d4b43d40288f9b10cf2326cc4b20cb901f5d8c4c34ca3cd8e537d66fa520bd34eb26d9ae0de7c59af7a1b42191336f86e858bb257c740e58fe751b633fce317c9b8f1b969ec55376845b9cad91faaced93ba5dc82153c2825363af120d5087111b3d5452968a2c9c3d921a089a052ec793a54891d3
    SignatureAlgorithmOID1.2.840.113549.1.1.5
    IsCertificateAuthorityTrue
    SerialNumber5200e5aa2556fc1a86ed96c9d44b33c7
    Version3

    Imports

    Expand
    • ntoskrnl.exe

    Imported Functions

    Expand
    • rand
    • srand
    • RtlInitUnicodeString
    • RtlGetVersion
    • KeDelayExecutionThread
    • ExAllocatePoolWithTag
    • ExFreePoolWithTag
    • ExSystemTimeToLocalTime
    • MmGetSystemRoutineAddress
    • IofCompleteRequest
    • IoCreateDevice
    • IoCreateSymbolicLink
    • IoDeleteDevice
    • IoGetCurrentProcess
    • ObReferenceObjectByHandleWithTag
    • ObfDereferenceObject
    • ObfDereferenceObjectWithTag
    • MmIsAddressValid
    • PsGetProcessExitStatus
    • PsIsThreadTerminating
    • PsLookupProcessByProcessId
    • PsLookupThreadByThreadId
    • PsGetThreadProcess
    • PsIsSystemThread
    • ObOpenObjectByPointerWithTag
    • KeBugCheckEx

    Exported Functions

    Expand

    Sections

    Expand
    • .text
    • .rdata
    • .data
    • .pdata
    • INIT
    • .reloc

    Signature

    Expand
    {
  "Certificates": [
    {
      "IsCertificateAuthority": false,
      "SerialNumber": "627dfdf73a1455de5143a270799e6b7b",
      "Signature": "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",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.5",
      "Subject": "C=CN, ST=guangdong, L=zhuhai, O=Zhuhai liancheng Technology Co., Ltd., OU=Digital ID Class 3 , Microsoft Software Validation v2, CN=Zhuhai liancheng Technology Co., Ltd.",
      "TBS": {
        "MD5": "b91ec3270e80aa93214c42d1eed66d36",
        "SHA1": "c27a40cbc754d2bb1f7b872a5a9fd385ff1c2b2f",
        "SHA256": "7b4a9879162ce64e75cca2bcc675be06dacb6c9eeae4df6c929080b4db819cd4",
        "SHA384": "394fa6e52375f53d18f79f1abb7b26b02bbb000784279547bd81d16c18fabe1b8156b64ad1c356e85e1829fa2ab3f870"
      },
      "ValidFrom": "2013-02-04 00:00:00",
      "ValidTo": "2014-02-04 23:59:59",
      "Version": 3
    },
    {
      "IsCertificateAuthority": true,
      "SerialNumber": "611993e400000000001c",
      "Signature": "812a82168c34672be503eb347b8ca2a3508af45586f11e8c8eae7dee0319ce72951848ad6211fd20fd3f4706015ae2e06f8c152c4e3c6a506c0b36a3cf7a0d9c42bc5cf819d560e369e6e22341678c6883762b8f93a32ab57fbe59fba9c9b2268fcaa2f3821b983e919527978661ee5b5d076bcd86a8e26580a8e215e2b2be23056aba0cf347934daca48c077939c061123a050d89a3ec9f578984fbecca7c47661491d8b60f195de6b84aacbc47c8714396e63220a5dc7786fd3ce38b71db7b9b03fcb71d3264eb1652a043a3fa2ead59924e7cc7f233424838513a7c38c71b242228401e1a461f17db18f7f027356cb863d9cdb9645d2ba55eefc629b4f2c7f821cc04ba57fd01b6abc667f9e7d3997ff4f522fa72f5fdff3a1c423aa1f98018a5ee8d1cd4669e4501feaaeefffb178f30f7f1cd29c59decb5d549003d85b8cbbb933a276a49c030ae66c9f723283276f9a48356c848ce5a96aaa0cc0cc47fb48e97af6de35427c39f86c0d6e473089705dbd054625e0348c2d59f7fa7668cd09db04fd4d3985f4b7ac97fb22952d01280c70f54b61e67cdc6a06c110384d34875e72afeb03b6e0a3aa66b769905a3f177686133144706fc537f52bd92145c4a246a678caf8d90aad0f679211b93267cc3ce1ebd883892ae45c6196a4950b305f8ae59378a6a250394b1598150e8ba8380b72335f476b9671d5918ad208d94",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.5",
      "Subject": "C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=(c) 2006 VeriSign, Inc. , For authorized use only, CN=VeriSign Class 3 Public Primary Certification Authority , G5",
      "TBS": {
        "MD5": "78a717e082dcc1cda3458d917e677d14",
        "SHA1": "4a872e0e51f9b304469cd1dedb496ee9b8b983a4",
        "SHA256": "317fa1d234ebc49040ebc5e8746f8997471496051b185a91bdd9dfbb23fab5f8",
        "SHA384": "b71052da4eb9157c8c1a5d7f55df19d69b9128598b72fcca608e5b7cc7d64c43c5504b9c86355a6dc22ee40c88cc385c"
      },
      "ValidFrom": "2011-02-22 19:25:17",
      "ValidTo": "2021-02-22 19:35:17",
      "Version": 3
    },
    {
      "IsCertificateAuthority": true,
      "SerialNumber": "5200e5aa2556fc1a86ed96c9d44b33c7",
      "Signature": "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",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.5",
      "Subject": "C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Terms of use at https://www.verisign.com/rpa (c)10, CN=VeriSign Class 3 Code Signing 2010 CA",
      "TBS": {
        "MD5": "b30c31a572b0409383ed3fbe17e56e81",
        "SHA1": "4843a82ed3b1f2bfbee9671960e1940c942f688d",
        "SHA256": "03cda47a6e654ed85d932714fc09ce4874600eda29ec6628cfbaeb155cab78c9",
        "SHA384": "bbda8407c4f9fc4e54d772f1c7fb9d30bc97e1f97ecd51c443063d1fa0644e266328781776cd5c44896c457c75f4d7da"
      },
      "ValidFrom": "2010-02-08 00:00:00",
      "ValidTo": "2020-02-07 23:59:59",
      "Version": 3
    }
  ],
  "CertificatesInfo": "",
  "Signer": [
    {
      "Issuer": "C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Terms of use at https://www.verisign.com/rpa (c)10, CN=VeriSign Class 3 Code Signing 2010 CA",
      "SerialNumber": "627dfdf73a1455de5143a270799e6b7b",
      "Version": 1
    }
  ],
  "SignerInfo": ""
}

    source

    last_updated: 2024-04-09