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LOLDRIVERS_MAL_Driver_Chingachgukdengerk_Vusbbussys_Virtualusbbusdriver_B4F3

Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - driver_b4f33ffe.sys. Investigate matches in context: expected filenames or standard vendor/system driver locations can be lower priority, while unexpected filenames or paths are more suspicious.

Vulnerable / malicious driverLOLDriversApache License 2.0Compiles with YARA-X
Author
Florian Roth
Date
2025-09-18
Modified
2026-04-28
Score / Quality
70 / 80

What this rule detects

Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - driver_b4f33ffe.sys. Investigate matches in context: expected filenames or standard vendor/system driver locations can be lower priority, while unexpected filenames or paths are more suspicious.

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-chingachgukdengerk-vusbbussys-virtualusbbusdriver-b4f3.yarApache License 2.0
rule LOLDRIVERS_MAL_Driver_Chingachgukdengerk_Vusbbussys_Virtualusbbusdriver_B4F3
{
	meta:
		description = "Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - driver_b4f33ffe.sys. Investigate matches in context: expected filenames or standard vendor/system driver locations can be lower priority, while unexpected filenames or paths are more suspicious."
		author = "Florian Roth"
		id = "927f87b3-468e-52c5-8f82-d2ece75832e7"
		date = "2025-09-18"
		modified = "2026-04-28"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		source_url = "https://github.com/magicsword-io/LOLDrivers//blob/9fa32adeab865455de8b24cba0bbc0f3439d59f7/detections/yara/yara-rules_mal_drivers.yar#L81-L101"
		license_url = "https://github.com/magicsword-io/LOLDrivers//blob/9fa32adeab865455de8b24cba0bbc0f3439d59f7/LICENSE"
		hash = "b4f33ffef069c18e8a8834eb448dd1f1dbdaae93b140cfff5a1db015eb3ada2f"
		logic_hash = "178a4e8398ab6c663a1b6d1c810948a5efe1f9d97c2c9e2177d6763e0de3bc7d"
		score = 70
		quality = 80
		tags = ""

	strings:
		$ = { 460069006c0065004400650073006300720069007000740069006f006e00[1-8]5600690072007400750061006c00200055005300420020006200750073002000640072006900760065007200 }
		$ = { 43006f006d00700061006e0079004e0061006d006500[1-8]4300680069006e006700610063006800670075006b00200026002000440065006e0067006500720032006b00 }
		$ = { 460069006c006500560065007200730069006f006e00[1-8]30002e00310020006200750069006c0074002000620079003a002000570069006e00440044004b00 }
		$ = { 500072006f006400750063007400560065007200730069006f006e00[1-8]30002e003100 }
		$ = { 49006e007400650072006e0061006c004e0061006d006500[1-8]76007500730062006200750073002e00730079007300 }
		$ = { 500072006f0064007500630074004e0061006d006500[1-8]5600690072007400750061006c00200055005300420020006200750073002000640072006900760065007200 }
		$ = { 4f0072006900670069006e0061006c00460069006c0065006e0061006d006500[1-8]76007500730062006200750073002e00730079007300 }
		$ = { 4c006500670061006c0043006f007000790072006900670068007400[1-8]43006f0070007900720069006700680074002000280043002900320030003000340020004200790020004300680069006e006700610063006800670075006b00200026002000440065006e0067006500720032006b00 }

	condition:
		all of them
}

Strings (8 patterns)

IdentifierTypeValueModifiers
$hex{ 460069006c0065004400650073006300720069007000740069006f006e00[1-8]5600690072007400750061006c00200055005300420020006200750073002000640072006900760065007200 }
$hex{ 43006f006d00700061006e0079004e0061006d006500[1-8]4300680069006e006700610063006800670075006b00200026002000440065006e0067006500720032006b00 }
$hex{ 460069006c006500560065007200730069006f006e00[1-8]30002e00310020006200750069006c0074002000620079003a002000570069006e00440044004b00 }
$hex{ 500072006f006400750063007400560065007200730069006f006e00[1-8]30002e003100 }
$hex{ 49006e007400650072006e0061006c004e0061006d006500[1-8]76007500730062006200750073002e00730079007300 }
$hex{ 500072006f0064007500630074004e0061006d006500[1-8]5600690072007400750061006c00200055005300420020006200750073002000640072006900760065007200 }
$hex{ 4f0072006900670069006e0061006c00460069006c0065006e0061006d006500[1-8]76007500730062006200750073002e00730079007300 }
$hex{ 4c006500670061006c0043006f007000790072006900670068007400[1-8]43006f0070007900720069006700680074002000280043002900320030003000340020004200790020004300680069006 …

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).

  • b4f33ffef069c18e8a8834eb448dd1f1dbdaae93b140cfff5a1db015eb3ada2f

Licence & attribution

Author: Florian Roth

Source repository: LOLDrivers @ 9fa32adeab

Licence: Apache License 2.0 (repository licence)

Original rule

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

Rule id: 927f87b3-468e-52c5-8f82-d2ece75832e7

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