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MALPEDIA_Win_Xenarmor_Auto

autogenerated rule brought to you by yara-signator

MalwareXenarmorMalpedia 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: Xenarmor.

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

Summary generated from the rule's metadata and condition.

Rule source

win-xenarmor-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Xenarmor_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "b14dbbf7-b248-5ca7-bec1-7bf9792f172d"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.xenarmor"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.xenarmor_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "8461b00ea65911dc30667513375de29f713a98f01004d89e0b35bf4b96c1cd8e"
		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 = { e8???????? 8bf8 85ff 75a0 8b8ed0000000 e8???????? 8b4c2410 }
		$sequence_1 = { e8???????? 59 59 85c0 7906 c70705000000 ff15???????? }
		$sequence_2 = { e8???????? 8bc8 894c2408 85c9 0f847b010000 b804000000 66894108 }
		$sequence_3 = { ff742474 8bcb e8???????? 83c408 ba38000000 8bcb 50 }
		$sequence_4 = { ff742414 e8???????? 83c408 85c0 7412 8b5314 6861ae0000 }
		$sequence_5 = { ff760c e8???????? 8b5510 83c404 8bce e8???????? 8886a4000000 }
		$sequence_6 = { e8???????? 68???????? 8d86108e0500 68c8000000 50 e8???????? 68???????? }
		$sequence_7 = { e8???????? 8b542448 8d8424d4000000 50 8bce e8???????? 83c404 }
		$sequence_8 = { f68070306c0004 0f45ce e8???????? 85c0 0f854d020000 8d4db0 e8???????? }
		$sequence_9 = { e8???????? 83c408 8944240c 8bd0 85c0 0f8492000000 85f6 }

	condition:
		7 of them and filesize < 10894336
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ e8???????? 8bf8 85ff 75a0 8b8ed0000000 e8???????? 8b4c2410 }
$sequence_1hex{ e8???????? 59 59 85c0 7906 c70705000000 ff15???????? }
$sequence_2hex{ e8???????? 8bc8 894c2408 85c9 0f847b010000 b804000000 66894108 }
$sequence_3hex{ ff742474 8bcb e8???????? 83c408 ba38000000 8bcb 50 }
$sequence_4hex{ ff742414 e8???????? 83c408 85c0 7412 8b5314 6861ae0000 }
$sequence_5hex{ ff760c e8???????? 8b5510 83c404 8bce e8???????? 8886a4000000 }
$sequence_6hex{ e8???????? 68???????? 8d86108e0500 68c8000000 50 e8???????? 68???????? }
$sequence_7hex{ e8???????? 8b542448 8d8424d4000000 50 8bce e8???????? 83c404 }
$sequence_8hex{ f68070306c0004 0f45ce e8???????? 85c0 0f854d020000 8d4db0 e8???????? }
$sequence_9hex{ e8???????? 83c408 8944240c 8bd0 85c0 0f8492000000 85f6 }

Condition

7 of them and filesize < 10894336

In plain words (Heuristic)

  • The file must be smaller than 10894336 (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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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: b14dbbf7-b248-5ca7-bec1-7bf9792f172d

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