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MALPEDIA_Win_Zeus_Auto

autogenerated rule brought to you by yara-signator

MalwareZeusMalpedia 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 / 73

What this rule detects

autogenerated rule brought to you by yara-signator

Associated malware family: Zeus.

It defines 23 patterns (0 text, 23 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-zeus-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Zeus_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "9cff0bfd-9b06-576a-8e72-e4d85e4ecc7f"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.zeus"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.zeus_auto.yar#L1-L222"
		license_url = "N/A"
		logic_hash = "66e72d904644f02d2fc5f424827c224768e932373fac617050d2c0bc5f04cb35"
		score = 75
		quality = 73
		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 = { eb58 833f00 7651 8b5f08 }
		$sequence_1 = { 885dff 53 53 6a03 }
		$sequence_2 = { 83e900 741e 49 740c }
		$sequence_3 = { 8b0d???????? 03c8 830904 8b0d???????? }
		$sequence_4 = { 83e81c 50 8d461c 50 8d45f0 50 e8???????? }
		$sequence_5 = { 8d4301 8d75fc e8???????? 8b75fc }
		$sequence_6 = { ebd7 8b4514 85c0 7409 8338ff }
		$sequence_7 = { 885dff 395d0c 7415 ff750c 53 683a040000 ff15???????? }
		$sequence_8 = { 891d???????? 891d???????? ffd6 68???????? }
		$sequence_9 = { 8bf3 6810270000 ff35???????? ff15???????? }
		$sequence_10 = { e8???????? 84c0 7442 6a10 }
		$sequence_11 = { 8d8db0fdffff e8???????? 8ad8 84db }
		$sequence_12 = { c20400 55 8bec f6451802 }
		$sequence_13 = { 5e 8ac3 5b c20800 55 8bec 83e4f8 }
		$sequence_14 = { 894736 8d470c 50 c707000e0000 c7470809080002 e8???????? }
		$sequence_15 = { b001 5b 8be5 5d c3 66833d????????00 56 }
		$sequence_16 = { 0f84ac000000 b809080002 3945f4 7713 }
		$sequence_17 = { 5b 8bc6 c745f809080002 e8???????? 8ad8 f6450c04 7473 }
		$sequence_18 = { 68e6010000 68???????? 6809080002 8bc6 50 8d45fc }
		$sequence_19 = { 3d59495351 0f85ca000000 807b0420 0f85c0000000 33c0 }
		$sequence_20 = { 740c 81fb45415356 0f85b2000000 b365 6a15 }
		$sequence_21 = { 2501000080 7905 48 83c8fe 40 ff75f4 f7d8 }
		$sequence_22 = { 81fb5d515047 7410 81fb4f4d4156 7408 81fb59495354 7506 }

	condition:
		7 of them and filesize < 319488
}

Strings (23 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ eb58 833f00 7651 8b5f08 }
$sequence_1hex{ 885dff 53 53 6a03 }
$sequence_2hex{ 83e900 741e 49 740c }
$sequence_3hex{ 8b0d???????? 03c8 830904 8b0d???????? }
$sequence_4hex{ 83e81c 50 8d461c 50 8d45f0 50 e8???????? }
$sequence_5hex{ 8d4301 8d75fc e8???????? 8b75fc }
$sequence_6hex{ ebd7 8b4514 85c0 7409 8338ff }
$sequence_7hex{ 885dff 395d0c 7415 ff750c 53 683a040000 ff15???????? }
$sequence_8hex{ 891d???????? 891d???????? ffd6 68???????? }
$sequence_9hex{ 8bf3 6810270000 ff35???????? ff15???????? }
$sequence_10hex{ e8???????? 84c0 7442 6a10 }
$sequence_11hex{ 8d8db0fdffff e8???????? 8ad8 84db }
$sequence_12hex{ c20400 55 8bec f6451802 }
$sequence_13hex{ 5e 8ac3 5b c20800 55 8bec 83e4f8 }
$sequence_14hex{ 894736 8d470c 50 c707000e0000 c7470809080002 e8???????? }
$sequence_15hex{ b001 5b 8be5 5d c3 66833d????????00 56 }
$sequence_16hex{ 0f84ac000000 b809080002 3945f4 7713 }
$sequence_17hex{ 5b 8bc6 c745f809080002 e8???????? 8ad8 f6450c04 7473 }
$sequence_18hex{ 68e6010000 68???????? 6809080002 8bc6 50 8d45fc }
$sequence_19hex{ 3d59495351 0f85ca000000 807b0420 0f85c0000000 33c0 }
$sequence_20hex{ 740c 81fb45415356 0f85b2000000 b365 6a15 }
$sequence_21hex{ 2501000080 7905 48 83c8fe 40 ff75f4 f7d8 }
$sequence_22hex{ 81fb5d515047 7410 81fb4f4d4156 7408 81fb59495354 7506 }

Condition

7 of them and filesize < 319488

In plain words (Heuristic)

  • The file must be smaller than 319488 (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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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

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: 9cff0bfd-9b06-576a-8e72-e4d85e4ecc7f

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