Skip to content

YARA · Signature Base (Florian Roth / Nextron)

SIGNATURE_BASE_MAL_Driver_Microsoftcorporation_Srvnetsys_Microsoftwindowsoperatingsystem_F6C3_1

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

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-f6c3-1.yarDetection Rule License 1.1
rule SIGNATURE_BASE_MAL_Driver_Microsoftcorporation_Srvnetsys_Microsoftwindowsoperatingsystem_F6C3_1
{
	meta:
		description = "Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - WinTapix.sys, SRVNET2.SYS"
		author = "Florian Roth"
		id = "3559718f-59d7-5bff-860c-6a073f4c05d9"
		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#L544-L564"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		hash = "f6c316e2385f2694d47e936b0ac4bc9b55e279d530dd5e805f0d963cb47c3c0d"
		logic_hash = "ab1aea5cec71668c0e35ea149b9e537c8468738c3b3e70382ebedf51bb8729d0"
		score = 70
		quality = 85
		tags = ""

	strings:
		$ = { 00460069006c0065004400650073006300720069007000740069006f006e[1-8]0053006500720076006500720020004e006500740077006f0072006b0020006400720069007600650072 }
		$ = { 0043006f006d00700061006e0079004e0061006d0065[1-8]004d006900630072006f0073006f0066007400200043006f00720070006f0072006100740069006f006e }
		$ = { 00460069006c006500560065007200730069006f006e[1-8]00310030002e0030002e00310038003300360032002e0036003900330020002800570069006e004200750069006c0064002e003100360030003100300031002e00300038003000300029 }
		$ = { 00500072006f006400750063007400560065007200730069006f006e[1-8]00310030002e0030002e00310038003300360032002e003600390033 }
		$ = { 0049006e007400650072006e0061006c004e0061006d0065[1-8]005300520056004e004500540032002e005300590053 }
		$ = { 00500072006f0064007500630074004e0061006d0065[1-8]004d006900630072006f0073006f0066007400ae002000570069006e0064006f0077007300ae0020004f007000650072006100740069006e0067002000530079007300740065006d }
		$ = { 004f0072006900670069006e0061006c00460069006c0065006e0061006d0065[1-8]005300520056004e004500540032002e005300590053 }
		$ = { 004c006500670061006c0043006f0070007900720069006700680074[1-8]00a90020004d006900630072006f0073006f0066007400200043006f00720070006f0072006100740069006f006e002e00200041006c006c0020007200690067006800740073002000720065007300650072007600650064002e }

	condition:
		all of them
}

Strings (8 patterns)

IdentifierTypeValueModifiers
$hex{ 00460069006c0065004400650073006300720069007000740069006f006e[1-8]0053006500720076006500720020004e006500740077006f0072006b0020006400720069007600650072 }
$hex{ 0043006f006d00700061006e0079004e0061006d0065[1-8]004d006900630072006f0073006f0066007400200043006f00720070006f0072006100740069006f006e }
$hex{ 00460069006c006500560065007200730069006f006e[1-8]00310030002e0030002e00310038003300360032002e0036003900330020002800570069006e004200750069006c0064002e003100360 …
$hex{ 00500072006f006400750063007400560065007200730069006f006e[1-8]00310030002e0030002e00310038003300360032002e003600390033 }
$hex{ 0049006e007400650072006e0061006c004e0061006d0065[1-8]005300520056004e004500540032002e005300590053 }
$hex{ 00500072006f0064007500630074004e0061006d0065[1-8]004d006900630072006f0073006f0066007400ae002000570069006e0064006f0077007300ae0020004f0070006500720061007400690 …
$hex{ 004f0072006900670069006e0061006c00460069006c0065006e0061006d0065[1-8]005300520056004e004500540032002e005300590053 }
$hex{ 004c006500670061006c0043006f0070007900720069006700680074[1-8]00a90020004d006900630072006f0073006f0066007400200043006f00720070006f0072006100740069006f006e002e0 …

Condition

all of them

In plain words (Heuristic)

  • All patterns in the rule must match.

Test this rule in your browser

Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.

Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

Open in editor

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: 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: 3559718f-59d7-5bff-860c-6a073f4c05d9