Skip to content

YARA · Malpedia signator rules

MALPEDIA_Win_Pixynet_Loader_Auto

autogenerated rule brought to you by yara-signator

MalwarePixynet LoaderMalpedia 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: Pixynet Loader.

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

Summary generated from the rule's metadata and condition.

Rule source

win-pixynet-loader-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Pixynet_Loader_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "1c64e489-8422-5e96-b81c-abb48a680769"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.pixynet_loader"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.pixynet_loader_auto.yar#L1-L117"
		license_url = "N/A"
		logic_hash = "ddc6d79927cfc6257bfd40e5990ebfc62fb7e5f2795c7c38f2f5e8ab1db4a85b"
		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 = { 4c8d0d14ea0700 4183e23f 4f8d04d2 498b04c1 }
		$sequence_1 = { 488d15fcf90700 488b45d0 48c1e820 85c0 }
		$sequence_2 = { 4883ec20 488d1deb570100 488d3de4570100 eb12 488b03 4885c0 7406 }
		$sequence_3 = { 4c89642420 448bc6 498bd7 498bce ff15???????? }
		$sequence_4 = { 488bd7 4c8d054ff50700 83e23f 488bcf 48c1f906 488d14d2 }
		$sequence_5 = { ff15???????? 85db 0f94c0 488b5c2470 488b742478 4883c460 5f }
		$sequence_6 = { 418bf0 4c8d0d37dc0000 8bda 4c8d0526dc0000 488bf9 }
		$sequence_7 = { 84c9 752f 488d1d5b2e0800 488b0b 4885c9 }
		$sequence_8 = { 488d4dc0 458d442447 33d2 0f1145c0 }
		$sequence_9 = { ff15???????? 85c0 0f95c0 eb11 33d2 41b800800000 }

	condition:
		7 of them and filesize < 1183744
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 4c8d0d14ea0700 4183e23f 4f8d04d2 498b04c1 }
$sequence_1hex{ 488d15fcf90700 488b45d0 48c1e820 85c0 }
$sequence_2hex{ 4883ec20 488d1deb570100 488d3de4570100 eb12 488b03 4885c0 7406 }
$sequence_3hex{ 4c89642420 448bc6 498bd7 498bce ff15???????? }
$sequence_4hex{ 488bd7 4c8d054ff50700 83e23f 488bcf 48c1f906 488d14d2 }
$sequence_5hex{ ff15???????? 85db 0f94c0 488b5c2470 488b742478 4883c460 5f }
$sequence_6hex{ 418bf0 4c8d0d37dc0000 8bda 4c8d0526dc0000 488bf9 }
$sequence_7hex{ 84c9 752f 488d1d5b2e0800 488b0b 4885c9 }
$sequence_8hex{ 488d4dc0 458d442447 33d2 0f1145c0 }
$sequence_9hex{ ff15???????? 85c0 0f95c0 eb11 33d2 41b800800000 }

Condition

7 of them and filesize < 1183744

In plain words (Heuristic)

  • The file must be smaller than 1183744 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.

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: 1c64e489-8422-5e96-b81c-abb48a680769

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