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LOLDRIVERS_MAL_Driver_Gentilkiwibenjamindelpy_Mimidrv_Mimidrvmimikatz_41AD

Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - mimidrv.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 - 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-41ad.yarApache License 2.0
rule LOLDRIVERS_MAL_Driver_Gentilkiwibenjamindelpy_Mimidrv_Mimidrvmimikatz_41AD
{
	meta:
		description = "Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - mimidrv.sys"
		author = "Florian Roth"
		id = "8a8887dd-0f3d-5ab4-a945-b47966789b99"
		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#L589-L623"
		license_url = "https://github.com/magicsword-io/LOLDrivers//blob/9fa32adeab865455de8b24cba0bbc0f3439d59f7/LICENSE"
		hash = "41ad660820c41fc8b1860b13dc1fea8bc8cb2faceb36ed3e29d40d28079d2b1f"
		hash = "a7a665a695ec3c0f862a0d762ad55aff6ce6014359647e7c7f7e3c4dc3be81b7"
		hash = "9a42fa1870472c38a56c0a70f62e57a3cdc0f5bc142f3a400d897b85d65800ac"
		hash = "f6157e033a12520c73dcedf8e49cd42d103e5874c34d6527bb9de25a5d26e5ad"
		hash = "31b66a57fae0cc28a6a236d72a35c8b6244f997e700f9464f9cbf800dbf8bee6"
		hash = "1d23ab46ad547e7eef409b40756aae9246fbdf545d13946f770643f19c715e80"
		hash = "704c6ffe786bc83a73fbdcd2edd50f47c3b5053da7da6aa4c10324d389a31db4"
		hash = "200f98655d1f46d2599c2c8605ebb7e335fee3883a32135ca1a81e09819bc64a"
		hash = "4bd4715d2a7af627da11513e32fab925c872babebdb7ff5675a75815fbf95021"
		hash = "9e56e96df36237e65b3d7dbc490afdc826215158f6278cd579c576c4b455b392"
		hash = "8b32fc8b15363915605c127ccbf5cbe71778f8dfbf821a25455496e969a01434"
		hash = "b0a27ac1a8173413de13860d2b2e34cb6bc4d1149f94b62d319042e11d8b004c"
		hash = "07beac65e28ee124f1da354293a3d6ad7250ed1ce29b8342acfd22252548a5af"
		hash = "c4f041de66ec8cc5ab4a03bbc46f99e073157a4e915a9ab4069162de834ffc5c"
		hash = "26ef7b27d1afb685e0c136205a92d29b1091e3dcf6b7b39a4ec03fbbdb57cb55"
		hash = "406b844f4b5c82caf26056c67f9815ad8ecf1e6e5b07d446b456e5ff4a1476f9"
		logic_hash = "a51e3e4c17122bf15b70b47693c3d24792cc7c7cbead1b26e501cb2907113968"
		score = 70
		quality = 80
		tags = ""

	strings:
		$ = { 00460069006c0065004400650073006300720069007000740069006f006e[1-8]006d0069006d006900640072007600200066006f0072002000570069006e0064006f0077007300200028006d0069006d0069006b00610074007a0029 }
		$ = { 0043006f006d00700061006e0079004e0061006d0065[1-8]00670065006e00740069006c006b0069007700690020002800420065006e006a0061006d0069006e002000440045004c005000590029 }
		$ = { 00460069006c006500560065007200730069006f006e[1-8]0032002e0032002e0030002e0030 }
		$ = { 00500072006f006400750063007400560065007200730069006f006e[1-8]0032002e0032002e0030002e0030 }
		$ = { 0049006e007400650072006e0061006c004e0061006d0065[1-8]006d0069006d0069006400720076 }
		$ = { 00500072006f0064007500630074004e0061006d0065[1-8]006d0069006d006900640072007600200028006d0069006d0069006b00610074007a0029 }
		$ = { 004f0072006900670069006e0061006c00460069006c0065006e0061006d0065[1-8]006d0069006d0069006400720076002e007300790073 }
		$ = { 004c006500670061006c0043006f0070007900720069006700680074[1-8]0043006f00700079007200690067006800740020002800630029002000320030003000370020002d00200032003000310039002000670065006e00740069006c006b0069007700690020002800420065006e006a0061006d0069006e002000440045004c005000590029 }

	condition:
		all of them
}

Strings (8 patterns)

IdentifierTypeValueModifiers
$hex{ 00460069006c0065004400650073006300720069007000740069006f006e[1-8]006d0069006d006900640072007600200066006f0072002000570069006e0064006f0077007300200028006d00690 …
$hex{ 0043006f006d00700061006e0079004e0061006d0065[1-8]00670065006e00740069006c006b0069007700690020002800420065006e006a0061006d0069006e002000440045004c005000590029 …
$hex{ 00460069006c006500560065007200730069006f006e[1-8]0032002e0032002e0030002e0030 }
$hex{ 00500072006f006400750063007400560065007200730069006f006e[1-8]0032002e0032002e0030002e0030 }
$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).

  • 41ad660820c41fc8b1860b13dc1fea8bc8cb2faceb36ed3e29d40d28079d2b1f
  • a7a665a695ec3c0f862a0d762ad55aff6ce6014359647e7c7f7e3c4dc3be81b7
  • 9a42fa1870472c38a56c0a70f62e57a3cdc0f5bc142f3a400d897b85d65800ac
  • f6157e033a12520c73dcedf8e49cd42d103e5874c34d6527bb9de25a5d26e5ad
  • 31b66a57fae0cc28a6a236d72a35c8b6244f997e700f9464f9cbf800dbf8bee6
  • 1d23ab46ad547e7eef409b40756aae9246fbdf545d13946f770643f19c715e80
  • 704c6ffe786bc83a73fbdcd2edd50f47c3b5053da7da6aa4c10324d389a31db4
  • 200f98655d1f46d2599c2c8605ebb7e335fee3883a32135ca1a81e09819bc64a
  • 4bd4715d2a7af627da11513e32fab925c872babebdb7ff5675a75815fbf95021
  • 9e56e96df36237e65b3d7dbc490afdc826215158f6278cd579c576c4b455b392
  • 8b32fc8b15363915605c127ccbf5cbe71778f8dfbf821a25455496e969a01434
  • b0a27ac1a8173413de13860d2b2e34cb6bc4d1149f94b62d319042e11d8b004c
  • 07beac65e28ee124f1da354293a3d6ad7250ed1ce29b8342acfd22252548a5af
  • c4f041de66ec8cc5ab4a03bbc46f99e073157a4e915a9ab4069162de834ffc5c
  • 26ef7b27d1afb685e0c136205a92d29b1091e3dcf6b7b39a4ec03fbbdb57cb55
  • 406b844f4b5c82caf26056c67f9815ad8ecf1e6e5b07d446b456e5ff4a1476f9

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: 8a8887dd-0f3d-5ab4-a945-b47966789b99