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MALPEDIA_Win_Ariabody_Auto

autogenerated rule brought to you by yara-signator

MalwareAriabodyMalpedia 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: Ariabody.

It defines 16 patterns (0 text, 16 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-ariabody-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Ariabody_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "9c6f8d35-c02f-5ef5-a7e8-cf6533a986bf"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.ariabody"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.ariabody_auto.yar#L1-L165"
		license_url = "N/A"
		logic_hash = "7b7776449c89848422a7843c3d30b8608869b2ffb7534522dcde571e4778c3ab"
		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 = { 8a01 84c0 7406 3ac3 7402 32c3 }
		$sequence_1 = { 8901 33c0 40 5b 5e 5f }
		$sequence_2 = { 8bf8 893e eb13 8b16 }
		$sequence_3 = { 83ec50 53 57 8bd9 e8???????? 8bf8 893b }
		$sequence_4 = { 8bcf 0fb6c0 50 ff75fc e8???????? }
		$sequence_5 = { eb13 8b16 8bcf e8???????? }
		$sequence_6 = { 8bf2 56 8d55fc 03f9 e8???????? 59 }
		$sequence_7 = { 03c7 50 ff5204 8b1e 8bd0 }
		$sequence_8 = { 4889ce 4d89c4 33d2 41b800010000 }
		$sequence_9 = { 8bd9 7418 488d0daf130100 e8???????? 85c0 7408 8bcb }
		$sequence_10 = { 4889e0 4889f1 450fb64d00 4889f2 450fb66d01 }
		$sequence_11 = { 41b800100000 41b904000000 41ff5710 4989c5 33c9 }
		$sequence_12 = { 4889f9 488d141e 440f46c5 4533c9 }
		$sequence_13 = { 4c8d35acd20000 49833cde00 7407 b801000000 eb5c b928000000 }
		$sequence_14 = { 8bc3 483bd0 0f871a050000 4c8d151d8bffff }
		$sequence_15 = { 4c89e9 33d2 41b800800000 41ff5718 4c89e1 }

	condition:
		7 of them and filesize < 253952
}

Strings (16 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8a01 84c0 7406 3ac3 7402 32c3 }
$sequence_1hex{ 8901 33c0 40 5b 5e 5f }
$sequence_2hex{ 8bf8 893e eb13 8b16 }
$sequence_3hex{ 83ec50 53 57 8bd9 e8???????? 8bf8 893b }
$sequence_4hex{ 8bcf 0fb6c0 50 ff75fc e8???????? }
$sequence_5hex{ eb13 8b16 8bcf e8???????? }
$sequence_6hex{ 8bf2 56 8d55fc 03f9 e8???????? 59 }
$sequence_7hex{ 03c7 50 ff5204 8b1e 8bd0 }
$sequence_8hex{ 4889ce 4d89c4 33d2 41b800010000 }
$sequence_9hex{ 8bd9 7418 488d0daf130100 e8???????? 85c0 7408 8bcb }
$sequence_10hex{ 4889e0 4889f1 450fb64d00 4889f2 450fb66d01 }
$sequence_11hex{ 41b800100000 41b904000000 41ff5710 4989c5 33c9 }
$sequence_12hex{ 4889f9 488d141e 440f46c5 4533c9 }
$sequence_13hex{ 4c8d35acd20000 49833cde00 7407 b801000000 eb5c b928000000 }
$sequence_14hex{ 8bc3 483bd0 0f871a050000 4c8d151d8bffff }
$sequence_15hex{ 4c89e9 33d2 41b800800000 41ff5718 4c89e1 }

Condition

7 of them and filesize < 253952

In plain words (Heuristic)

  • The file must be smaller than 253952 (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: 9c6f8d35-c02f-5ef5-a7e8-cf6533a986bf

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