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YARA · Signature Base (Florian Roth / Nextron)

SIGNATURE_BASE_MAL_Driver_Gentilkiwibenjamindelpy_Mimidrv_Mimidrvmimikatz_30E0_1

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

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

Summary generated from the rule's metadata and condition.

Rule source

mal-driver-gentilkiwibenjamindelpy-mimidrv-mimidrvmimikatz-30e0-1.yarDetection Rule License 1.1
rule SIGNATURE_BASE_MAL_Driver_Gentilkiwibenjamindelpy_Mimidrv_Mimidrvmimikatz_30E0_1
{
	meta:
		description = "Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - mimidrv.sys"
		author = "Florian Roth"
		id = "888de0dc-5643-5e55-8272-9363cc55bfcf"
		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#L497-L518"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		hash = "30e083cd7616b1b969a92fd18cf03097735596cce7fcf3254b2ca344e526acc2"
		hash = "a906251667a103a484a6888dca3e9c8c81f513b8f037b98dfc11440802b0d640"
		logic_hash = "e2c964f7e30da210778e8a2e5bb96d53485a0736cf3ff28bccbefacb6b46765a"
		score = 70
		quality = 85
		tags = ""

	strings:
		$ = { 00460069006c0065004400650073006300720069007000740069006f006e[1-8]006d0069006d006900640072007600200066006f0072002000570069006e0064006f0077007300200028006d0069006d0069006b00610074007a0029 }
		$ = { 0043006f006d00700061006e0079004e0061006d0065[1-8]00670065006e00740069006c006b0069007700690020002800420065006e006a0061006d0069006e002000440045004c005000590029 }
		$ = { 00460069006c006500560065007200730069006f006e[1-8]0032002e0030002e0030002e0030 }
		$ = { 00500072006f006400750063007400560065007200730069006f006e[1-8]0032002e0030002e0030002e0030 }
		$ = { 0049006e007400650072006e0061006c004e0061006d0065[1-8]006d0069006d0069006400720076 }
		$ = { 00500072006f0064007500630074004e0061006d0065[1-8]006d0069006d006900640072007600200028006d0069006d0069006b00610074007a0029 }
		$ = { 004f0072006900670069006e0061006c00460069006c0065006e0061006d0065[1-8]006d0069006d0069006400720076002e007300790073 }
		$ = { 004c006500670061006c0043006f0070007900720069006700680074[1-8]0043006f00700079007200690067006800740020002800630029002000320030003000370020002d00200032003000310033002000670065006e00740069006c006b0069007700690020002800420065006e006a0061006d0069006e002000440045004c005000590029 }

	condition:
		all of them
}

Strings (8 patterns)

IdentifierTypeValueModifiers
$hex{ 00460069006c0065004400650073006300720069007000740069006f006e[1-8]006d0069006d006900640072007600200066006f0072002000570069006e0064006f0077007300200028006d00690 …
$hex{ 0043006f006d00700061006e0079004e0061006d0065[1-8]00670065006e00740069006c006b0069007700690020002800420065006e006a0061006d0069006e002000440045004c005000590029 …
$hex{ 00460069006c006500560065007200730069006f006e[1-8]0032002e0030002e0030002e0030 }
$hex{ 00500072006f006400750063007400560065007200730069006f006e[1-8]0032002e0030002e0030002e0030 }
$hex{ 0049006e007400650072006e0061006c004e0061006d0065[1-8]006d0069006d0069006400720076 }
$hex{ 00500072006f0064007500630074004e0061006d0065[1-8]006d0069006d006900640072007600200028006d0069006d0069006b00610074007a0029 }
$hex{ 004f0072006900670069006e0061006c00460069006c0065006e0061006d0065[1-8]006d0069006d0069006400720076002e007300790073 }
$hex{ 004c006500670061006c0043006f0070007900720069006700680074[1-8]0043006f00700079007200690067006800740020002800630029002000320030003000370020002d00200032003000310 …

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).

  • 30e083cd7616b1b969a92fd18cf03097735596cce7fcf3254b2ca344e526acc2
  • a906251667a103a484a6888dca3e9c8c81f513b8f037b98dfc11440802b0d640

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: 888de0dc-5643-5e55-8272-9363cc55bfcf