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MALPEDIA_Win_Noxplayer_Auto

autogenerated rule brought to you by yara-signator

MalwareNoxplayerMalpedia 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: Noxplayer.

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

Summary generated from the rule's metadata and condition.

Rule source

win-noxplayer-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Noxplayer_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "626e33e3-02ab-5f81-8b18-d221f744b2f5"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.noxplayer"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.noxplayer_auto.yar#L1-L132"
		license_url = "N/A"
		logic_hash = "ec1addc908444b63f85ad6df23a149da4e200cec4480ab26b21530c0b1ad02f6"
		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 = { 750d 488bce e8???????? e9???????? 4c8d2dc5520200 8bcb 488beb }
		$sequence_1 = { 742c 4c2bc0 488d4c3818 8bd3 4c2bc7 6666666666660f1f840000000000 410fb64408e8 }
		$sequence_2 = { eb03 488bc3 488986d8000000 b928000000 e8???????? 4889442430 }
		$sequence_3 = { e8???????? 90 488d4db0 e8???????? 488b4d28 4833cc e8???????? }
		$sequence_4 = { 488d9c2490000000 488b1b 483b5d10 742a 488d4d28 488d5318 e8???????? }
		$sequence_5 = { 498bcc e8???????? 3dffff0000 0f8f55070000 0f84d7060000 83f807 0f8746070000 }
		$sequence_6 = { 488d4c2458 448be0 ff15???????? 83f801 7427 458d84242d010000 488d542430 }
		$sequence_7 = { 488d5570 488d8de0000000 e8???????? 85c0 7421 488bce }
		$sequence_8 = { 8b4108 412bd0 2bc2 ffc8 c3 8b4108 412bc0 }
		$sequence_9 = { 4c895c2428 488d1597fd0200 488d4c2428 e8???????? cc 488b5c2458 4883c440 }

	condition:
		7 of them and filesize < 742400
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 750d 488bce e8???????? e9???????? 4c8d2dc5520200 8bcb 488beb }
$sequence_1hex{ 742c 4c2bc0 488d4c3818 8bd3 4c2bc7 6666666666660f1f840000000000 410fb64408e8 }
$sequence_2hex{ eb03 488bc3 488986d8000000 b928000000 e8???????? 4889442430 }
$sequence_3hex{ e8???????? 90 488d4db0 e8???????? 488b4d28 4833cc e8???????? }
$sequence_4hex{ 488d9c2490000000 488b1b 483b5d10 742a 488d4d28 488d5318 e8???????? }
$sequence_5hex{ 498bcc e8???????? 3dffff0000 0f8f55070000 0f84d7060000 83f807 0f8746070000 }
$sequence_6hex{ 488d4c2458 448be0 ff15???????? 83f801 7427 458d84242d010000 488d542430 }
$sequence_7hex{ 488d5570 488d8de0000000 e8???????? 85c0 7421 488bce }
$sequence_8hex{ 8b4108 412bd0 2bc2 ffc8 c3 8b4108 412bc0 }
$sequence_9hex{ 4c895c2428 488d1597fd0200 488d4c2428 e8???????? cc 488b5c2458 4883c440 }

Condition

7 of them and filesize < 742400

In plain words (Heuristic)

  • The file must be smaller than 742400 (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: 626e33e3-02ab-5f81-8b18-d221f744b2f5

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