ea0e7351-b65c-4c5a-9863-83b9d5efcec3

ampa.sys

Description

Northwave Cyber Security contributed this driver based on in-house research. The driver has a CVSSv3 score of 8.8, indicating a privilege escalation impact. This vulnerability could potentially be exploited for privilege escalation or other malicious activities.

UUID: ea0e7351-b65c-4c5a-9863-83b9d5efcec3
Created: 2024-09-11
Author: Northwave Cyber Security
Acknowledgement: Northwave Cyber Security |

Download Block

Commands

sc.exe create ampa binPath=C:\windows\temp\ampa.sys type=kernel &amp;&amp; sc.exe start ampa

Use Case	Privileges	Operating System
Elevate privileges	kernel	Windows 10

Detections

YARA 🏹

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Sigma 🛡️

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Names

detects loading using name only

Hashes

detects loading using hashes only

Sysmon 🔎

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Block

on hashes

Alert

on hashes

Resources

Known Vulnerable Samples

Property	Value
Filename	ampa.sys
Creation Timestamp	2015-11-09 18:34:49
MD5	d0c50c113fe59c21ad59932e6b9c202f
SHA1	41ff9cf9091fef6da6dfa3279310655a84ed5845
SHA256	01d51df682136cce453bb1da8964073e6bc7297ce4dae7301c753bb618a69469
Authentihash MD5	d08b5fabcd47f8dac29c560649573a49
Authentihash SHA1	b503a13858755b769fa47d94ad5dccface9a4ee6
Authentihash SHA256	fcae081ec5093f2f794e0fe32456a07d2294decea356ba84f5ca7c0af407b671
RichPEHeaderHash MD5	372b4c724687acc96710b406c74424df
RichPEHeaderHash SHA1	b528b33ef8be28b0730a801245461fec1c0dbd84
RichPEHeaderHash SHA256	1ed2a96cbf2e91a5bbe4ea80d07a897faaf34b94365b10643cfef339be7f7083

Download

Certificates

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Certificate 7e93ebfb7cc64e59ea4b9a77d406fc3b

Field	Value
ToBeSigned (TBS) MD5	d0785ad36e427c92b19f6826ab1e8020
ToBeSigned (TBS) SHA1	365b7a9c21bd9373e49052c3e7b3e4646ddd4d43
ToBeSigned (TBS) SHA256	c2abb7484da91a658548de089d52436175fdb760a1387d225611dc0613a1e2ff
Subject	C=US, O=Symantec Corporation, CN=Symantec Time Stamping Services CA , G2
ValidFrom	2012-12-21 00:00:00
ValidTo	2020-12-30 23:59:59
Signature	03099b8f79ef7f5930aaef68b5fae3091dbb4f82065d375fa6529f168dea1c9209446ef56deb587c30e8f9698d23730b126f47a9ae3911f82ab19bb01ac38eeb599600adce0c4db2d031a6085c2a7afce27a1d574ca86518e979406225966ec7c7376a8321088e41eaddd9573f1d7749872a16065ea6386a2212a35119837eb6
SignatureAlgorithmOID	1.2.840.113549.1.1.5
IsCertificateAuthority	True
SerialNumber	7e93ebfb7cc64e59ea4b9a77d406fc3b
Version	3

Certificate 0ecff438c8febf356e04d86a981b1a50

Field	Value
ToBeSigned (TBS) MD5	e9d38360b914c8863f6cba3ee58764d3
ToBeSigned (TBS) SHA1	4cba8eae47b6bf76f20b3504b98b8f062694a89b
ToBeSigned (TBS) SHA256	88901d86a4cc1f1bb193d08e1fb63d27452e63f83e228c657ab1a92e4ade3976
Subject	C=US, O=Symantec Corporation, CN=Symantec Time Stamping Services Signer , G4
ValidFrom	2012-10-18 00:00:00
ValidTo	2020-12-29 23:59:59
Signature	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
SignatureAlgorithmOID	1.2.840.113549.1.1.5
IsCertificateAuthority	False
SerialNumber	0ecff438c8febf356e04d86a981b1a50
Version	3

Certificate 28736d0d296789512bac66cce86c4a00

Field	Value
ToBeSigned (TBS) MD5	4c93a544ef2dacd77773714dc2decb2a
ToBeSigned (TBS) SHA1	fe76f8127d047eb7fa8d0953886c61e76f7a2edf
ToBeSigned (TBS) SHA256	e709f276f00712d30c1c2be02d74b34419b9a069f3424c67f906c8543bd1e6b7
Subject	C=CN, ST=SiChuan, L=ChengDu, O=CHENGDU AOMEI Tech Co., Ltd., CN=CHENGDU AOMEI Tech Co., Ltd.
ValidFrom	2016-06-29 00:00:00
ValidTo	2019-06-29 23:59:59
Signature	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
SignatureAlgorithmOID	1.2.840.113549.1.1.5
IsCertificateAuthority	False
SerialNumber	28736d0d296789512bac66cce86c4a00
Version	3

Certificate 611993e400000000001c

Field	Value
ToBeSigned (TBS) MD5	78a717e082dcc1cda3458d917e677d14
ToBeSigned (TBS) SHA1	4a872e0e51f9b304469cd1dedb496ee9b8b983a4
ToBeSigned (TBS) SHA256	317fa1d234ebc49040ebc5e8746f8997471496051b185a91bdd9dfbb23fab5f8
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
ValidFrom	2011-02-22 19:25:17
ValidTo	2021-02-22 19:35:17
Signature	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
SignatureAlgorithmOID	1.2.840.113549.1.1.5
IsCertificateAuthority	True
SerialNumber	611993e400000000001c
Version	3

Certificate 5200e5aa2556fc1a86ed96c9d44b33c7

Field	Value
ToBeSigned (TBS) MD5	b30c31a572b0409383ed3fbe17e56e81
ToBeSigned (TBS) SHA1	4843a82ed3b1f2bfbee9671960e1940c942f688d
ToBeSigned (TBS) SHA256	03cda47a6e654ed85d932714fc09ce4874600eda29ec6628cfbaeb155cab78c9
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
ValidFrom	2010-02-08 00:00:00
ValidTo	2020-02-07 23:59:59
Signature	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
SignatureAlgorithmOID	1.2.840.113549.1.1.5
IsCertificateAuthority	True
SerialNumber	5200e5aa2556fc1a86ed96c9d44b33c7
Version	3

Imports

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ntoskrnl.exe

Imported Functions

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MmMapLockedPagesSpecifyCache
IoGetDeviceObjectPointer
IoBuildAsynchronousFsdRequest
ExAllocatePool
_vsnwprintf
IofCompleteRequest
IoGetLowerDeviceObject
KeWaitForSingleObject
IoBuildDeviceIoControlRequest
IoFreeIrp
ExFreePoolWithTag
IoGetAttachedDeviceReference
RtlCompareUnicodeString
MmUnlockPages
ObfReferenceObject
RtlInitUnicodeString
ObfDereferenceObject
KeSetEvent
RtlUnicodeStringToInteger
wcsncpy
ObReferenceObjectByName
KeInitializeEvent
IofCallDriver
IoFreeMdl
ObQueryNameString
IoDriverObjectType
IoDeleteSymbolicLink
IoDeleteDevice
IoCreateSymbolicLink
IoCreateDevice
InbvSolidColorFill
InbvSetScrollRegion
InbvResetDisplay
InbvSetTextColor
InbvDisplayString
ExAllocatePoolWithTag
ZwSetValueKey
wcsncat
KeReleaseSpinLock
ZwClose
ZwFlushKey
ZwDeleteKey
ZwEnumerateKey
ZwQueryKey
ZwOpenKey
KeAcquireSpinLockRaiseToDpc
KeBugCheckEx

Exported Functions

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Sections

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.text
.rdata
.data
.pdata
INIT

Signature

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{
  "Certificates": [
    {
      "IsCertificateAuthority": true,
      "SerialNumber": "7e93ebfb7cc64e59ea4b9a77d406fc3b",
      "Signature": "03099b8f79ef7f5930aaef68b5fae3091dbb4f82065d375fa6529f168dea1c9209446ef56deb587c30e8f9698d23730b126f47a9ae3911f82ab19bb01ac38eeb599600adce0c4db2d031a6085c2a7afce27a1d574ca86518e979406225966ec7c7376a8321088e41eaddd9573f1d7749872a16065ea6386a2212a35119837eb6",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.5",
      "Subject": "C=US, O=Symantec Corporation, CN=Symantec Time Stamping Services CA , G2",
      "TBS": {
        "MD5": "d0785ad36e427c92b19f6826ab1e8020",
        "SHA1": "365b7a9c21bd9373e49052c3e7b3e4646ddd4d43",
        "SHA256": "c2abb7484da91a658548de089d52436175fdb760a1387d225611dc0613a1e2ff",
        "SHA384": "eab4fe5ef90e0de4a6aa3a27769a5e879f588df5e4785aa4104debd1f81e19ea56d33e3a16e5facf99f68b5d8e3d287b"
      },
      "ValidFrom": "2012-12-21 00:00:00",
      "ValidTo": "2020-12-30 23:59:59",
      "Version": 3
    },
    {
      "IsCertificateAuthority": false,
      "SerialNumber": "0ecff438c8febf356e04d86a981b1a50",
      "Signature": "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",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.5",
      "Subject": "C=US, O=Symantec Corporation, CN=Symantec Time Stamping Services Signer , G4",
      "TBS": {
        "MD5": "e9d38360b914c8863f6cba3ee58764d3",
        "SHA1": "4cba8eae47b6bf76f20b3504b98b8f062694a89b",
        "SHA256": "88901d86a4cc1f1bb193d08e1fb63d27452e63f83e228c657ab1a92e4ade3976",
        "SHA384": "e9f2a75334a9e336c5a4712eadee88d0374b0fdc273262f4e65c9040ad2793067cc076696db5279a478773485e285652"
      },
      "ValidFrom": "2012-10-18 00:00:00",
      "ValidTo": "2020-12-29 23:59:59",
      "Version": 3
    },
    {
      "IsCertificateAuthority": false,
      "SerialNumber": "28736d0d296789512bac66cce86c4a00",
      "Signature": "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",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.5",
      "Subject": "C=CN, ST=SiChuan, L=ChengDu, O=CHENGDU AOMEI Tech Co., Ltd., CN=CHENGDU AOMEI Tech Co., Ltd.",
      "TBS": {
        "MD5": "4c93a544ef2dacd77773714dc2decb2a",
        "SHA1": "fe76f8127d047eb7fa8d0953886c61e76f7a2edf",
        "SHA256": "e709f276f00712d30c1c2be02d74b34419b9a069f3424c67f906c8543bd1e6b7",
        "SHA384": "20d1076f3a1709ed9ee4b11539174a9399493ccb59c2c899769411a30e01a6cc7d1e7c5834ac16993eda016a7f6eb141"
      },
      "ValidFrom": "2016-06-29 00:00:00",
      "ValidTo": "2019-06-29 23:59:59",
      "Version": 3
    },
    {
      "IsCertificateAuthority": true,
      "SerialNumber": "611993e400000000001c",
      "Signature": "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",
      "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": "28736d0d296789512bac66cce86c4a00",
      "Version": 1
    }
  ],
  "SignerInfo": ""
}

source

last_updated: 2025-01-13