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YARA · Signature Base (Florian Roth / Nextron)

SIGNATURE_BASE_MAL_Driver_Microsoftcorporation_Wantdsys_Microsoftwindowsoperatingsystem_81C7_1

Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - wantd_3.sys

MalwareSignature Base (Florian Roth / Nextron)Detection Rule License 1.1Compiles with YARA-X
Author
Florian Roth
Date
2024-08-07
Modified
2024-12-12
Score / Quality
70 / 85

What this rule detects

Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - wantd_3.sys

It defines 8 patterns (0 text, 8 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
mal-driver-microsoftcorporation-wantdsys-microsoftwindowsoperatingsystem-81c7-1.yarDetection Rule License 1.1
rule SIGNATURE_BASE_MAL_Driver_Microsoftcorporation_Wantdsys_Microsoftwindowsoperatingsystem_81C7_1
{
	meta:
		description = "Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - wantd_3.sys"
		author = "Florian Roth"
		id = "43ae822a-c4c4-5525-bfd3-a05d1ec50bd0"
		date = "2024-08-07"
		modified = "2024-12-12"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		source_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/yara/yara-rules_mal_drivers.yar#L567-L587"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		hash = "81c7bb39100d358f8286da5e9aa838606c98dfcc263e9a82ed91cd438cb130d1"
		logic_hash = "ec9e321bbc89bffb6243e3edde45e60dc06513e88dfb9a262768ef081db60c5b"
		score = 70
		quality = 85
		tags = ""

	strings:
		$ = { 00460069006c0065004400650073006300720069007000740069006f006e[1-8]00570041004e0020005400720061006e00730070006f007200740020004400720069007600650072 }
		$ = { 0043006f006d00700061006e0079004e0061006d0065[1-8]004d006900630072006f0073006f0066007400200043006f00720070006f0072006100740069006f006e }
		$ = { 00460069006c006500560065007200730069006f006e[1-8]0035002e0032002e0033003700390030002e003900330038 }
		$ = { 00500072006f006400750063007400560065007200730069006f006e[1-8]0035002e0032002e0033003700390030002e003900330038 }
		$ = { 0049006e007400650072006e0061006c004e0061006d0065[1-8]00770061006e00740064002e007300790073 }
		$ = { 00500072006f0064007500630074004e0061006d0065[1-8]004d006900630072006f0073006f00660074002000570069006e0064006f007700730020004f007000650072006100740069006e0067002000530079007300740065006d }
		$ = { 004f0072006900670069006e0061006c00460069006c0065006e0061006d0065[1-8]00770061006e00740064002e007300790073 }
		$ = { 004c006500670061006c0043006f0070007900720069006700680074[1-8]004d006900630072006f0073006f0066007400200043006f00720070006f0072006100740069006f006e002e00200041006c006c0020007200690067006800740073002000720065007300650072007600650064002e }

	condition:
		all of them
}

Strings (8 patterns)

IdentifierTypeValueModifiers
$hex{ 00460069006c0065004400650073006300720069007000740069006f006e[1-8]00570041004e0020005400720061006e00730070006f007200740020004400720069007600650072 }
$hex{ 0043006f006d00700061006e0079004e0061006d0065[1-8]004d006900630072006f0073006f0066007400200043006f00720070006f0072006100740069006f006e }
$hex{ 00460069006c006500560065007200730069006f006e[1-8]0035002e0032002e0033003700390030002e003900330038 }
$hex{ 00500072006f006400750063007400560065007200730069006f006e[1-8]0035002e0032002e0033003700390030002e003900330038 }
$hex{ 0049006e007400650072006e0061006c004e0061006d0065[1-8]00770061006e00740064002e007300790073 }
$hex{ 00500072006f0064007500630074004e0061006d0065[1-8]004d006900630072006f0073006f00660074002000570069006e0064006f007700730020004f007000650072006100740069006e00670 …
$hex{ 004f0072006900670069006e0061006c00460069006c0065006e0061006d0065[1-8]00770061006e00740064002e007300790073 }
$hex{ 004c006500670061006c0043006f0070007900720069006700680074[1-8]004d006900630072006f0073006f0066007400200043006f00720070006f0072006100740069006f006e002e002000410 …

Condition

all of them

In plain words (Heuristic)

  • All patterns in the rule must match.

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References

Sample hashes

Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).

  • 81c7bb39100d358f8286da5e9aa838606c98dfcc263e9a82ed91cd438cb130d1

Licence & attribution

Author: Florian Roth

Source repository: Signature Base (Florian Roth / Nextron) @ 94a1c48d7a

Licence: Detection Rule License 1.1 (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: 43ae822a-c4c4-5525-bfd3-a05d1ec50bd0

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