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MALPEDIA_Win_Zerocleare_Auto

autogenerated rule brought to you by yara-signator

MalwareZerocleareMalpedia 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: Zerocleare.

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

Summary generated from the rule's metadata and condition.

Rule source

win-zerocleare-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Zerocleare_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "aaffbb51-ae5a-5a33-af37-f6ca4beb1006"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.zerocleare"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.zerocleare_auto.yar#L1-L118"
		license_url = "N/A"
		logic_hash = "e2a432e71bba9b73c9875d571cdcfbba9fb777bd921eb709f6641897385aefd0"
		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 = { 83e03f c1f906 6bc038 8b0c8d40fd4400 }
		$sequence_1 = { 83bdd4f7ffff08 6a00 0f4385c0f7ffff 51 50 ffd7 }
		$sequence_2 = { 894304 8b45ec 03c1 894308 }
		$sequence_3 = { 8d04c1 894304 8b45ec 03c1 894308 8b03 }
		$sequence_4 = { 8d04c1 894304 8b45ec 03c1 894308 }
		$sequence_5 = { 59 6a05 c74048b0d24400 8b4508 6689486c }
		$sequence_6 = { 8b07 8b5610 83c03d c745e801000000 }
		$sequence_7 = { 85c0 751f ff15???????? 50 8d4c2408 e8???????? 68???????? }
		$sequence_8 = { 85c0 0f84d5460000 c3 833d????????ff 7503 33c0 }
		$sequence_9 = { 0f94c1 fec9 8b148540fd4400 80e102 8a44172d 24fd 0ac8 }

	condition:
		7 of them and filesize < 42670080
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 83e03f c1f906 6bc038 8b0c8d40fd4400 }
$sequence_1hex{ 83bdd4f7ffff08 6a00 0f4385c0f7ffff 51 50 ffd7 }
$sequence_2hex{ 894304 8b45ec 03c1 894308 }
$sequence_3hex{ 8d04c1 894304 8b45ec 03c1 894308 8b03 }
$sequence_4hex{ 8d04c1 894304 8b45ec 03c1 894308 }
$sequence_5hex{ 59 6a05 c74048b0d24400 8b4508 6689486c }
$sequence_6hex{ 8b07 8b5610 83c03d c745e801000000 }
$sequence_7hex{ 85c0 751f ff15???????? 50 8d4c2408 e8???????? 68???????? }
$sequence_8hex{ 85c0 0f84d5460000 c3 833d????????ff 7503 33c0 }
$sequence_9hex{ 0f94c1 fec9 8b148540fd4400 80e102 8a44172d 24fd 0ac8 }

Condition

7 of them and filesize < 42670080

In plain words (Heuristic)

  • The file must be smaller than 42670080 (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: aaffbb51-ae5a-5a33-af37-f6ca4beb1006

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