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MALPEDIA_Win_Boaxxe_Auto

autogenerated rule brought to you by yara-signator

MalwareBoaxxeMalpedia 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: Boaxxe.

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

Summary generated from the rule's metadata and condition.

Rule source

win-boaxxe-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Boaxxe_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "2bb67af8-b6d9-5c00-ad9d-f90436b618be"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.boaxxe"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.boaxxe_auto.yar#L1-L131"
		license_url = "N/A"
		logic_hash = "dcea11ec1796e63ef451ec3784868ff54b455a28065fd15b91434a046d8b3def"
		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 = { 8b4de4 8b55e8 8b45e0 e8???????? 84c0 742e 8b45f0 }
		$sequence_1 = { 59 e8???????? b808000000 e8???????? 83c005 69c0e8030000 e8???????? }
		$sequence_2 = { 8b00 ff5020 85c0 0f8517010000 b9???????? ba???????? 8b45f0 }
		$sequence_3 = { e8???????? 8d45dc e8???????? 8d45e8 e8???????? 8d45ec e8???????? }
		$sequence_4 = { 69c0e8030000 50 8b45fc 8b4058 50 e8???????? }
		$sequence_5 = { e8???????? 89c2 5f 5b c3 51 }
		$sequence_6 = { 50 8d45dc e8???????? 8bcb 5a e8???????? e9???????? }
		$sequence_7 = { e8???????? 85db 746f 895c240c 8b4c240c 890c24 8b0424 }
		$sequence_8 = { ff30 68???????? 8d45f8 ba07000000 e8???????? 8d459c 8b55f8 }
		$sequence_9 = { 50 57 e8???????? 83f801 1bc0 40 }

	condition:
		7 of them and filesize < 1146880
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8b4de4 8b55e8 8b45e0 e8???????? 84c0 742e 8b45f0 }
$sequence_1hex{ 59 e8???????? b808000000 e8???????? 83c005 69c0e8030000 e8???????? }
$sequence_2hex{ 8b00 ff5020 85c0 0f8517010000 b9???????? ba???????? 8b45f0 }
$sequence_3hex{ e8???????? 8d45dc e8???????? 8d45e8 e8???????? 8d45ec e8???????? }
$sequence_4hex{ 69c0e8030000 50 8b45fc 8b4058 50 e8???????? }
$sequence_5hex{ e8???????? 89c2 5f 5b c3 51 }
$sequence_6hex{ 50 8d45dc e8???????? 8bcb 5a e8???????? e9???????? }
$sequence_7hex{ e8???????? 85db 746f 895c240c 8b4c240c 890c24 8b0424 }
$sequence_8hex{ ff30 68???????? 8d45f8 ba07000000 e8???????? 8d459c 8b55f8 }
$sequence_9hex{ 50 57 e8???????? 83f801 1bc0 40 }

Condition

7 of them and filesize < 1146880

In plain words (Heuristic)

  • The file must be smaller than 1146880 (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: 2bb67af8-b6d9-5c00-ad9d-f90436b618be

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