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MALPEDIA_Win_Aurora_Auto

autogenerated rule brought to you by yara-signator

MalwareAuroraMalpedia 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: Aurora.

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

Summary generated from the rule's metadata and condition.

Rule source

win-aurora-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Aurora_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "51ed4883-29c7-5db1-ae37-e45ef237ed01"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.aurora"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.aurora_auto.yar#L1-L118"
		license_url = "N/A"
		logic_hash = "096cba69160414cb93810db5641c0d92338473a05bdca2545ec054e9ad37243c"
		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 = { 50 e8???????? 8bb5c8feffff 56 ffd3 46 03f0 }
		$sequence_1 = { 8d8db4f1ffff c785c8f1ffff0f000000 c785c4f1ffff00000000 c685b4f1ffff00 e8???????? }
		$sequence_2 = { 0f57c0 83c608 660fd645e8 83ef01 0f856cffffff }
		$sequence_3 = { e8???????? 6a03 68???????? 8d8d7cf0ffff c78590f0ffff0f000000 c7858cf0ffff00000000 c6857cf0ffff00 }
		$sequence_4 = { e8???????? ff75e8 837dec10 8d45d8 6a00 0f4345d8 8d4da8 }
		$sequence_5 = { 6a02 68???????? 8d8de4eeffff c785f8eeffff0f000000 }
		$sequence_6 = { 52 8d4dd8 e8???????? c645fc01 8d4dc0 }
		$sequence_7 = { 3c2f 0f85aa000000 837f1410 7204 8b07 eb02 }
		$sequence_8 = { 837e1410 8955c4 895610 7202 }
		$sequence_9 = { 47 8d85d8feffff 50 8d8df8feffff }

	condition:
		7 of them and filesize < 827392
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 50 e8???????? 8bb5c8feffff 56 ffd3 46 03f0 }
$sequence_1hex{ 8d8db4f1ffff c785c8f1ffff0f000000 c785c4f1ffff00000000 c685b4f1ffff00 e8???????? }
$sequence_2hex{ 0f57c0 83c608 660fd645e8 83ef01 0f856cffffff }
$sequence_3hex{ e8???????? 6a03 68???????? 8d8d7cf0ffff c78590f0ffff0f000000 c7858cf0ffff00000000 c6857cf0ffff00 }
$sequence_4hex{ e8???????? ff75e8 837dec10 8d45d8 6a00 0f4345d8 8d4da8 }
$sequence_5hex{ 6a02 68???????? 8d8de4eeffff c785f8eeffff0f000000 }
$sequence_6hex{ 52 8d4dd8 e8???????? c645fc01 8d4dc0 }
$sequence_7hex{ 3c2f 0f85aa000000 837f1410 7204 8b07 eb02 }
$sequence_8hex{ 837e1410 8955c4 895610 7202 }
$sequence_9hex{ 47 8d85d8feffff 50 8d8df8feffff }

Condition

7 of them and filesize < 827392

In plain words (Heuristic)

  • The file must be smaller than 827392 (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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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: 51ed4883-29c7-5db1-ae37-e45ef237ed01

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

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