YARA · LOLDrivers

LOLDRIVERS_MAL_Driver_Basil_Windivertsys_Windivertdriver_8DA0

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

Vulnerable / malicious driverLOLDriversApache License 2.0Compiles with YARA-X

Author: Florian Roth
Date: 2025-09-18
Modified: 2026-09-08
Score / Quality: 70 / 80

What this rule detects

Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - windivert.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-basil-windivertsys-windivertdriver-8da0.yarApache License 2.0

rule LOLDRIVERS_MAL_Driver_Basil_Windivertsys_Windivertdriver_8DA0
{
	meta:
		description = "Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - windivert.sys"
		author = "Florian Roth"
		id = "b2c5b02b-7fe2-5dcc-8c96-c67212780220"
		date = "2025-09-18"
		modified = "2026-09-08"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		source_url = "https://github.com/magicsword-io/LOLDrivers//blob/9fa32adeab865455de8b24cba0bbc0f3439d59f7/detections/yara/yara-rules_mal_drivers.yar#L58-L79"
		license_url = "https://github.com/magicsword-io/LOLDrivers//blob/9fa32adeab865455de8b24cba0bbc0f3439d59f7/LICENSE"
		hash = "8da085332782708d8767bcace5327a6ec7283c17cfb85e40b03cd2323a90ddc2"
		hash = "2f43f4251be4d72dd56c91bf6cce475d379eb9ba6c4dda2be3022ea633d5e807"
		hash = "8248306bcc5fae20fd4f3d5c44f962c85cddbe020b34a1799350ce2034154b7d"
		logic_hash = "ec4c9f576f33bdb22610fb9f4462b7a6c113ad704b1f6908e949dc65dde28bd5"
		score = 70
		quality = 80
		tags = ""

	strings:
		$ = { 00460069006c0065004400650073006300720069007000740069006f006e[1-8]005400680065002000570069006e00440069007600650072007400200032002e003200200064007200690076006500720020005b00550052004c003a002000680074007400700073003a002f002f0072006500710072007900700074002e006f00720067002f00770069006e006400690076006500720074002e00680074006d006c005d0020005b0042006900740063006f0069006e003a00200031004300350076005a0056005300620069007a00500065005a00380079006400540059006800550066006d0034004c004100320063004e007700420066006300590068005d }
		$ = { 0043006f006d00700061006e0079004e0061006d0065[1-8]0042006100730069006c }
		$ = { 00460069006c006500560065007200730069006f006e[1-8]0032002e0032 }
		$ = { 00500072006f006400750063007400560065007200730069006f006e[1-8]0032002e0032 }
		$ = { 0049006e007400650072006e0061006c004e0061006d0065[1-8]00570069006e004400690076006500720074002e007300790073 }
		$ = { 00500072006f0064007500630074004e0061006d0065[1-8]00570069006e00440069007600650072007400200032002e00320020006400720069007600650072 }
		$ = { 004f0072006900670069006e0061006c00460069006c0065006e0061006d0065[1-8]00570069006e004400690076006500720074002e007300790073 }
		$ = { 004c006500670061006c0043006f0070007900720069006700680074[1-8]0043006f0070007900720069006700680074002000a900200042006100730069006c00200032003000310031002d0032003000320032 }

	condition:
		all of them
}

Strings (8 patterns)

Identifier	Type	Value
$	hex	{ 00460069006c0065004400650073006300720069007000740069006f006e[1-8]005400680065002000570069006e00440069007600650072007400200032002e00320020006400720069007600650 …
$	hex	{ 0043006f006d00700061006e0079004e0061006d0065[1-8]0042006100730069006c }
$	hex	{ 00460069006c006500560065007200730069006f006e[1-8]0032002e0032 }
$	hex	{ 00500072006f006400750063007400560065007200730069006f006e[1-8]0032002e0032 }
$	hex	{ 0049006e007400650072006e0061006c004e0061006d0065[1-8]00570069006e004400690076006500720074002e007300790073 }
$	hex	{ 00500072006f0064007500630074004e0061006d0065[1-8]00570069006e00440069007600650072007400200032002e00320020006400720069007600650072 }
$	hex	{ 004f0072006900670069006e0061006c00460069006c0065006e0061006d0065[1-8]00570069006e004400690076006500720074002e007300790073 }
$	hex	{ 004c006500670061006c0043006f0070007900720069006700680074[1-8]0043006f0070007900720069006700680074002000a900200042006100730069006c00200032003000310031002d00320 …

Condition

all of them

In plain words (Heuristic)

All patterns in the rule must match.

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References

https://github.com/magicsword-io/LOLDrivers

Sample hashes

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

8da085332782708d8767bcace5327a6ec7283c17cfb85e40b03cd2323a90ddc2
2f43f4251be4d72dd56c91bf6cce475d379eb9ba6c4dda2be3022ea633d5e807
8248306bcc5fae20fd4f3d5c44f962c85cddbe020b34a1799350ce2034154b7d

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: b2c5b02b-7fe2-5dcc-8c96-c67212780220

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Vulnerable / malicious driverLOLDrivers· Florian Roth· 2026-04-28