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YARA · LOLDrivers

LOLDRIVERS_MAL_Driver_Microsoftcorporation_Srvnetsys_Microsoftwindowsoperatingsystem_F6C3

Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - WinTapix.sys, SRVNET2.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 - WinTapix.sys, SRVNET2.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

mal-driver-microsoftcorporation-srvnetsys-microsoftwindowsoperatingsystem-f6c3.yarApache License 2.0
rule LOLDRIVERS_MAL_Driver_Microsoftcorporation_Srvnetsys_Microsoftwindowsoperatingsystem_F6C3
{
	meta:
		description = "Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - WinTapix.sys, SRVNET2.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 = "d4ad7898-a3e3-56ef-8e83-f76da3d3f576"
		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#L894-L914"
		license_url = "https://github.com/magicsword-io/LOLDrivers//blob/9fa32adeab865455de8b24cba0bbc0f3439d59f7/LICENSE"
		hash = "f6c316e2385f2694d47e936b0ac4bc9b55e279d530dd5e805f0d963cb47c3c0d"
		logic_hash = "af5fe5f0852f2e654996aea7dccec8428dc8e9720797fc91d4243a0f480a0dc8"
		score = 70
		quality = 80
		tags = ""

	strings:
		$ = { 460069006c0065004400650073006300720069007000740069006f006e00[1-8]53006500720076006500720020004e006500740077006f0072006b002000640072006900760065007200 }
		$ = { 43006f006d00700061006e0079004e0061006d006500[1-8]4d006900630072006f0073006f0066007400200043006f00720070006f0072006100740069006f006e00 }
		$ = { 460069006c006500560065007200730069006f006e00[1-8]310030002e0030002e00310038003300360032002e0036003900330020002800570069006e004200750069006c0064002e003100360030003100300031002e0030003800300030002900 }
		$ = { 500072006f006400750063007400560065007200730069006f006e00[1-8]310030002e0030002e00310038003300360032002e00360039003300 }
		$ = { 49006e007400650072006e0061006c004e0061006d006500[1-8]5300520056004e004500540032002e00530059005300 }
		$ = { 500072006f0064007500630074004e0061006d006500[1-8]4d006900630072006f0073006f0066007400ae002000570069006e0064006f0077007300ae0020004f007000650072006100740069006e0067002000530079007300740065006d00 }
		$ = { 4f0072006900670069006e0061006c00460069006c0065006e0061006d006500[1-8]5300520056004e004500540032002e00530059005300 }
		$ = { 4c006500670061006c0043006f007000790072006900670068007400[1-8]a90020004d006900630072006f0073006f0066007400200043006f00720070006f0072006100740069006f006e002e00200041006c006c0020007200690067006800740073002000720065007300650072007600650064002e00 }

	condition:
		all of them
}

Strings (8 patterns)

IdentifierTypeValueModifiers
$hex{ 460069006c0065004400650073006300720069007000740069006f006e00[1-8]53006500720076006500720020004e006500740077006f0072006b002000640072006900760065007200 }
$hex{ 43006f006d00700061006e0079004e0061006d006500[1-8]4d006900630072006f0073006f0066007400200043006f00720070006f0072006100740069006f006e00 }
$hex{ 460069006c006500560065007200730069006f006e00[1-8]310030002e0030002e00310038003300360032002e0036003900330020002800570069006e004200750069006c0064002e00310036003 …
$hex{ 500072006f006400750063007400560065007200730069006f006e00[1-8]310030002e0030002e00310038003300360032002e00360039003300 }
$hex{ 49006e007400650072006e0061006c004e0061006d006500[1-8]5300520056004e004500540032002e00530059005300 }
$hex{ 500072006f0064007500630074004e0061006d006500[1-8]4d006900630072006f0073006f0066007400ae002000570069006e0064006f0077007300ae0020004f007000650072006100740069006 …
$hex{ 4f0072006900670069006e0061006c00460069006c0065006e0061006d006500[1-8]5300520056004e004500540032002e00530059005300 }
$hex{ 4c006500670061006c0043006f007000790072006900670068007400[1-8]a90020004d006900630072006f0073006f0066007400200043006f00720070006f0072006100740069006f006e002e002 …

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).

  • f6c316e2385f2694d47e936b0ac4bc9b55e279d530dd5e805f0d963cb47c3c0d

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: d4ad7898-a3e3-56ef-8e83-f76da3d3f576