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MALPEDIA_Win_Arcane_Stealer_Auto

autogenerated rule brought to you by yara-signator

MalwareArcane StealerMalpedia 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: Arcane Stealer.

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

Summary generated from the rule's metadata and condition.

Rule source

win-arcane-stealer-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Arcane_Stealer_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "deec17f9-1753-58d2-ae1d-69e668170595"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.arcane_stealer"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.arcane_stealer_auto.yar#L1-L130"
		license_url = "N/A"
		logic_hash = "446259c594d7c1601e598908e728329533aa47fb79167a90a870bb65dc3dd7c7"
		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 = { 44894c2474 e8???????? ba07010000 488dbc2400100000 4889f9 4c8d05f9b50000 48895c2458 }
		$sequence_1 = { 415e 415f c3 4c8b4c2468 0f57c0 0f11442428 4c89642420 }
		$sequence_2 = { 4989c7 4801c0 4939ef 72f5 4c89f1 4c89fa }
		$sequence_3 = { ba20000000 4889f1 e8???????? eb07 488d35bae30000 4889f1 ff15???????? }
		$sequence_4 = { 41b840040000 4889d9 31d2 e8???????? 4889f9 31d2 4531c0 }
		$sequence_5 = { 488b4c2448 31d2 ff15???????? 488d4c2450 e8???????? 488d4c2430 e8???????? }
		$sequence_6 = { 89542430 89442428 894c2420 ba40000000 488d8c24b0030000 4c8d0549f80000 e8???????? }
		$sequence_7 = { 74ed 4c89f1 e8???????? 4989c7 4889d9 4c89f2 4989c0 }
		$sequence_8 = { 7420 4a8b8c3430010000 4885c9 74ea e8???????? }
		$sequence_9 = { 85c0 7442 488b8424a0000000 448b4808 8b400c 410fb7c9 }

	condition:
		7 of them and filesize < 346112
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 44894c2474 e8???????? ba07010000 488dbc2400100000 4889f9 4c8d05f9b50000 48895c2458 }
$sequence_1hex{ 415e 415f c3 4c8b4c2468 0f57c0 0f11442428 4c89642420 }
$sequence_2hex{ 4989c7 4801c0 4939ef 72f5 4c89f1 4c89fa }
$sequence_3hex{ ba20000000 4889f1 e8???????? eb07 488d35bae30000 4889f1 ff15???????? }
$sequence_4hex{ 41b840040000 4889d9 31d2 e8???????? 4889f9 31d2 4531c0 }
$sequence_5hex{ 488b4c2448 31d2 ff15???????? 488d4c2450 e8???????? 488d4c2430 e8???????? }
$sequence_6hex{ 89542430 89442428 894c2420 ba40000000 488d8c24b0030000 4c8d0549f80000 e8???????? }
$sequence_7hex{ 74ed 4c89f1 e8???????? 4989c7 4889d9 4c89f2 4989c0 }
$sequence_8hex{ 7420 4a8b8c3430010000 4885c9 74ea e8???????? }
$sequence_9hex{ 85c0 7442 488b8424a0000000 448b4808 8b400c 410fb7c9 }

Condition

7 of them and filesize < 346112

In plain words (Heuristic)

  • The file must be smaller than 346112 (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: deec17f9-1753-58d2-ae1d-69e668170595

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