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MALPEDIA_Win_Nautilus_Auto

autogenerated rule brought to you by yara-signator

MalwareNautilusMalpedia 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: Nautilus.

It defines 10 patterns (0 text, 10 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-nautilus-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Nautilus_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "12b63073-89cd-53ef-a8ce-aa8e16743d23"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.nautilus"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.nautilus_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "77958bdbf06b9c7e86d771c8b09dd74435c29e435d9ecf2b197ccdea69a21688"
		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 = { ba0a000000 488bcb e8???????? 488bcb e8???????? 4885ff 0f8542ffffff }
		$sequence_1 = { e8???????? 443bf6 7646 4d8b4d38 4c8b45e7 488d55df 4889542430 }
		$sequence_2 = { 85c0 0f85ad000000 4c8bc6 488bd3 488bcb e8???????? e9???????? }
		$sequence_3 = { e9???????? 4983c202 4d3bd3 0f8406ffffff 418a4a01 84c9 750e }
		$sequence_4 = { 3da0010000 0f87e2000000 40f6c707 0f85d8000000 488d5948 488d1503370400 41b800100000 }
		$sequence_5 = { ba01000000 41b800020000 e8???????? 488907 488d4310 488b5c2430 4883c420 }
		$sequence_6 = { eb03 418bca 4863c2 4863c9 488d14c8 420fbe940aa0e50700 c1fa04 }
		$sequence_7 = { 8a4742 a840 7420 24bf 884742 488b5c2430 488b6c2438 }
		$sequence_8 = { 41bf01000000 488b4b10 ff15???????? 4585ff 7509 418d7f14 e9???????? }
		$sequence_9 = { 85c0 7508 8d4603 e9???????? 488d55e0 488d0db0e00500 e8???????? }

	condition:
		7 of them and filesize < 1302528
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ ba0a000000 488bcb e8???????? 488bcb e8???????? 4885ff 0f8542ffffff }
$sequence_1hex{ e8???????? 443bf6 7646 4d8b4d38 4c8b45e7 488d55df 4889542430 }
$sequence_2hex{ 85c0 0f85ad000000 4c8bc6 488bd3 488bcb e8???????? e9???????? }
$sequence_3hex{ e9???????? 4983c202 4d3bd3 0f8406ffffff 418a4a01 84c9 750e }
$sequence_4hex{ 3da0010000 0f87e2000000 40f6c707 0f85d8000000 488d5948 488d1503370400 41b800100000 }
$sequence_5hex{ ba01000000 41b800020000 e8???????? 488907 488d4310 488b5c2430 4883c420 }
$sequence_6hex{ eb03 418bca 4863c2 4863c9 488d14c8 420fbe940aa0e50700 c1fa04 }
$sequence_7hex{ 8a4742 a840 7420 24bf 884742 488b5c2430 488b6c2438 }
$sequence_8hex{ 41bf01000000 488b4b10 ff15???????? 4585ff 7509 418d7f14 e9???????? }
$sequence_9hex{ 85c0 7508 8d4603 e9???????? 488d55e0 488d0db0e00500 e8???????? }

Condition

7 of them and filesize < 1302528

In plain words (Heuristic)

  • The file must be smaller than 1302528 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

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

Open in editor

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: 12b63073-89cd-53ef-a8ce-aa8e16743d23

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