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LOLDRIVERS_MAL_Driver_Tonecinc_Idmtdisys_Internetdownloadmanager_2C1B

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

Download .yar
mal-driver-tonecinc-idmtdisys-internetdownloadmanager-2c1b.yarApache License 2.0
rule LOLDRIVERS_MAL_Driver_Tonecinc_Idmtdisys_Internetdownloadmanager_2C1B
{
	meta:
		description = "Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - idmtdi.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 = "9272f502-fc9d-5ccd-ac6a-7be6652ae14b"
		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#L1292-L1314"
		license_url = "https://github.com/magicsword-io/LOLDrivers//blob/9fa32adeab865455de8b24cba0bbc0f3439d59f7/LICENSE"
		hash = "2c1b65c2988b337182f1ba57b404793454e30a7fd328d34bc2e79857dc437a4a"
		hash = "44ebb0f534e7cdfec06d5234358d219798a313219b214d72aa23afc5a57d7ea9"
		hash = "77225a99b2e0e2b4007fb2f5a96d356e13deab45b9ef54c175d5452de8a211a7"
		logic_hash = "2836d1c6613df7efe33966cc2a5edd4b9bb30cb0346173221652278503ce13cf"
		score = 70
		quality = 80
		tags = ""

	strings:
		$ = { 460069006c0065004400650073006300720069007000740069006f006e00[1-8]49006e007400650072006e0065007400200044006f0077006e006c006f006100640020004d0061006e00610067006500720020005400440049002000440072006900760065007200 }
		$ = { 43006f006d00700061006e0079004e0061006d006500[1-8]54006f006e0065006300200049006e0063002e00 }
		$ = { 460069006c006500560065007200730069006f006e00[1-8]36002e00330032002e0033002e0038003000 }
		$ = { 500072006f006400750063007400560065007200730069006f006e00[1-8]36002e00330032002e0033002e003100 }
		$ = { 49006e007400650072006e0061006c004e0061006d006500[1-8]690064006d007400640069002e00730079007300 }
		$ = { 500072006f0064007500630074004e0061006d006500[1-8]49006e007400650072006e0065007400200044006f0077006e006c006f006100640020004d0061006e006100670065007200 }
		$ = { 4f0072006900670069006e0061006c00460069006c0065006e0061006d006500[1-8]690064006d007400640069002e00730079007300 }
		$ = { 4c006500670061006c0043006f007000790072006900670068007400[1-8]43006f0070007900720069006700680074002000a9002000310039003900390020002d0020003200300031003800200054006f006e0065006300200049006e0063002e00 }

	condition:
		all of them
}

Strings (8 patterns)

IdentifierTypeValueModifiers
$hex{ 460069006c0065004400650073006300720069007000740069006f006e00[1-8]49006e007400650072006e0065007400200044006f0077006e006c006f006100640020004d0061006e00610067006 …
$hex{ 43006f006d00700061006e0079004e0061006d006500[1-8]54006f006e0065006300200049006e0063002e00 }
$hex{ 460069006c006500560065007200730069006f006e00[1-8]36002e00330032002e0033002e0038003000 }
$hex{ 500072006f006400750063007400560065007200730069006f006e00[1-8]36002e00330032002e0033002e003100 }
$hex{ 49006e007400650072006e0061006c004e0061006d006500[1-8]690064006d007400640069002e00730079007300 }
$hex{ 500072006f0064007500630074004e0061006d006500[1-8]49006e007400650072006e0065007400200044006f0077006e006c006f006100640020004d0061006e006100670065007200 }
$hex{ 4f0072006900670069006e0061006c00460069006c0065006e0061006d006500[1-8]690064006d007400640069002e00730079007300 }
$hex{ 4c006500670061006c0043006f007000790072006900670068007400[1-8]43006f0070007900720069006700680074002000a9002000310039003900390020002d002000320030003100380020005 …

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).

  • 2c1b65c2988b337182f1ba57b404793454e30a7fd328d34bc2e79857dc437a4a
  • 44ebb0f534e7cdfec06d5234358d219798a313219b214d72aa23afc5a57d7ea9
  • 77225a99b2e0e2b4007fb2f5a96d356e13deab45b9ef54c175d5452de8a211a7

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: 9272f502-fc9d-5ccd-ac6a-7be6652ae14b

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