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MALPEDIA_Win_No_Justice_Auto

autogenerated rule brought to you by yara-signator

MalwareNo JusticeMalpedia 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: No Justice.

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

Summary generated from the rule's metadata and condition.

Rule source

win-no-justice-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_No_Justice_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "aca47e83-84a2-5108-a369-f472d0d5843a"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.no_justice"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.no_justice_auto.yar#L1-L116"
		license_url = "N/A"
		logic_hash = "3a31a46c0abcc6bf9e50fa2b25fe13a39c2c8607e75eadf0d2c2ccf83361fbaf"
		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???????? 83a670be410000 59 83c604 81fe00020000 72dd }
		$sequence_1 = { 8bd7 c1fa06 8934b8 8bc7 83e03f 6bc838 8b049570be4100 }
		$sequence_2 = { 833d????????00 0f84da190000 83ec08 0fae5c2404 }
		$sequence_3 = { 53 56 8d1c8538c24100 8b13 }
		$sequence_4 = { 3b0cc5d84e4100 7427 40 83f82d 72f1 }
		$sequence_5 = { 8b45b8 0fb600 0fbe8060b74100 40 8945c8 }
		$sequence_6 = { 83c414 ebe1 8b55ec 8b4de8 8b049570be4100 807c082800 7d55 }
		$sequence_7 = { 6bde38 8b04bd70be4100 807c182800 7d46 8b750c }
		$sequence_8 = { 8b5d08 8b048570be4100 56 57 }
		$sequence_9 = { 8b55ec 8b4de8 8b049570be4100 807c082800 }

	condition:
		7 of them and filesize < 253952
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 50 e8???????? 83a670be410000 59 83c604 81fe00020000 72dd }
$sequence_1hex{ 8bd7 c1fa06 8934b8 8bc7 83e03f 6bc838 8b049570be4100 }
$sequence_2hex{ 833d????????00 0f84da190000 83ec08 0fae5c2404 }
$sequence_3hex{ 53 56 8d1c8538c24100 8b13 }
$sequence_4hex{ 3b0cc5d84e4100 7427 40 83f82d 72f1 }
$sequence_5hex{ 8b45b8 0fb600 0fbe8060b74100 40 8945c8 }
$sequence_6hex{ 83c414 ebe1 8b55ec 8b4de8 8b049570be4100 807c082800 7d55 }
$sequence_7hex{ 6bde38 8b04bd70be4100 807c182800 7d46 8b750c }
$sequence_8hex{ 8b5d08 8b048570be4100 56 57 }
$sequence_9hex{ 8b55ec 8b4de8 8b049570be4100 807c082800 }

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.

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: aca47e83-84a2-5108-a369-f472d0d5843a

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