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MALPEDIA_Win_Resident_Auto

autogenerated rule brought to you by yara-signator

MalwareResidentMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compiles with YARA-X
Author
Felix Bilstein - yara-signator at cocacoding dot com
Date
2026-05-04
Modified
2026-05-18
Score / Quality
75 / 75

What this rule detects

autogenerated rule brought to you by yara-signator

Associated malware family: Resident.

It defines 16 patterns (0 text, 16 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-resident-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Resident_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "31c8cedb-b8c8-50af-8f65-2ca441a2c46a"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.resident"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.resident_auto.yar#L1-L170"
		license_url = "N/A"
		logic_hash = "8286f78c5f5fef0421ae4dbf75c8520e292621bde24259a94df34e1760f1910d"
		score = 75
		quality = 75
		tags = "FILE"
		version = "1"
		tool = "yara-signator v0.6.0"
		signator_config = "callsandjumps;datarefs;binvalue"
		malpedia_rule_date = "20260422"
		malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
		malpedia_version = "20260504"
		malpedia_license = "CC BY-SA 4.0"
		malpedia_sharing = "TLP:WHITE"

	strings:
		$sequence_0 = { ffd6 83ec04 85c0 7491 }
		$sequence_1 = { 6a00 83f864 7c26 8b7508 6801040000 }
		$sequence_2 = { 6a00 6a00 ff15???????? 6800080000 6a08 ffd7 50 }
		$sequence_3 = { 7424 83e101 741f b901000000 83c002 0fb710 }
		$sequence_4 = { 890424 894c2404 ff5218 83ec10 85c0 7852 8b442428 }
		$sequence_5 = { 83f801 7508 8d7001 e9???????? 83f802 0f85ac000000 }
		$sequence_6 = { 68???????? 50 ff15???????? 5f 33c0 5e }
		$sequence_7 = { c70424???????? e8???????? 837c242c01 89c7 7e4b }
		$sequence_8 = { e8???????? 89c7 c7002d2d2d2d c740042d424547 }
		$sequence_9 = { e8???????? 893c24 89442428 e8???????? 8b542428 }
		$sequence_10 = { 33ff 68007f0000 57 c745b430000000 897db8 c745bc20144000 }
		$sequence_11 = { 56 68e9fd0000 ffd3 8d85dcfeffff 8d7001 8a08 }
		$sequence_12 = { 8b3d???????? 890424 ffd7 8b4c2428 }
		$sequence_13 = { 8b2d???????? 83ec08 8d9c248e000000 c744241c00000000 }
		$sequence_14 = { 8bec 81ec84060000 a1???????? 33c5 8945f8 53 56 }
		$sequence_15 = { 57 ff15???????? 57 e8???????? 83c424 57 }

	condition:
		7 of them and filesize < 125952
}

Strings (16 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ ffd6 83ec04 85c0 7491 }
$sequence_1hex{ 6a00 83f864 7c26 8b7508 6801040000 }
$sequence_2hex{ 6a00 6a00 ff15???????? 6800080000 6a08 ffd7 50 }
$sequence_3hex{ 7424 83e101 741f b901000000 83c002 0fb710 }
$sequence_4hex{ 890424 894c2404 ff5218 83ec10 85c0 7852 8b442428 }
$sequence_5hex{ 83f801 7508 8d7001 e9???????? 83f802 0f85ac000000 }
$sequence_6hex{ 68???????? 50 ff15???????? 5f 33c0 5e }
$sequence_7hex{ c70424???????? e8???????? 837c242c01 89c7 7e4b }
$sequence_8hex{ e8???????? 89c7 c7002d2d2d2d c740042d424547 }
$sequence_9hex{ e8???????? 893c24 89442428 e8???????? 8b542428 }
$sequence_10hex{ 33ff 68007f0000 57 c745b430000000 897db8 c745bc20144000 }
$sequence_11hex{ 56 68e9fd0000 ffd3 8d85dcfeffff 8d7001 8a08 }
$sequence_12hex{ 8b3d???????? 890424 ffd7 8b4c2428 }
$sequence_13hex{ 8b2d???????? 83ec08 8d9c248e000000 c744241c00000000 }
$sequence_14hex{ 8bec 81ec84060000 a1???????? 33c5 8945f8 53 56 }
$sequence_15hex{ 57 ff15???????? 57 e8???????? 83c424 57 }

Condition

7 of them and filesize < 125952

In plain words (Heuristic)

  • The file must be smaller than 125952 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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References

Licence & attribution

Author: Felix Bilstein - yara-signator at cocacoding dot com

Source repository: Malpedia signator rules @ c901f97b7d

Licence: Creative Commons Attribution-ShareAlike 4.0 (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: 31c8cedb-b8c8-50af-8f65-2ca441a2c46a

Metadata

version1
toolyara-signator v0.6.0
signator_configcallsandjumps;datarefs;binvalue
malpedia_rule_date20260422
malpedia_hasha182e35da64e6d71cb55f125c4d4225196523f14
malpedia_version20260504
malpedia_licenseCC BY-SA 4.0
malpedia_sharingTLP:WHITE

Tags:FILE