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MALPEDIA_Win_Ployx_Auto

autogenerated rule brought to you by yara-signator

MalwarePloyxMalpedia 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: Ployx.

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

Summary generated from the rule's metadata and condition.

Rule source

win-ployx-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Ployx_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "fec73e07-e8b3-57ed-9bd4-5b2b5278fd29"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.ployx"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.ployx_auto.yar#L1-L127"
		license_url = "N/A"
		logic_hash = "fb83e724df677046924044ac86f8d1935494d3b6ca0dc7e2ae112ead877f554a"
		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 = { e8???????? 59 59 ff7528 8d7508 8d8500ffffff }
		$sequence_1 = { 8bc6 c1f905 83e01f 8b0c8d007d2700 8d04c0 f644810401 741d }
		$sequence_2 = { 8901 83c213 83c104 4e 75ed 5e }
		$sequence_3 = { 7cf1 393d???????? 7520 53 b9???????? b800020000 }
		$sequence_4 = { 3c2f 7404 3c2d 7513 8b4df4 03cb 8801 }
		$sequence_5 = { e8???????? 85c0 744c 8b400c 6a04 }
		$sequence_6 = { e8???????? 83f8ff 8945f8 0f8498010000 68???????? }
		$sequence_7 = { 50 e8???????? 59 8d8500ffffff 59 ff7508 8bce }
		$sequence_8 = { 3b0d???????? 57 7358 8bc1 c1f805 8d3c85007d2700 8bc1 }
		$sequence_9 = { 47 83f80b 0f8777020000 ff248534e32600 80fb31 7c0c 80fb39 }

	condition:
		7 of them and filesize < 229376
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ e8???????? 59 59 ff7528 8d7508 8d8500ffffff }
$sequence_1hex{ 8bc6 c1f905 83e01f 8b0c8d007d2700 8d04c0 f644810401 741d }
$sequence_2hex{ 8901 83c213 83c104 4e 75ed 5e }
$sequence_3hex{ 7cf1 393d???????? 7520 53 b9???????? b800020000 }
$sequence_4hex{ 3c2f 7404 3c2d 7513 8b4df4 03cb 8801 }
$sequence_5hex{ e8???????? 85c0 744c 8b400c 6a04 }
$sequence_6hex{ e8???????? 83f8ff 8945f8 0f8498010000 68???????? }
$sequence_7hex{ 50 e8???????? 59 8d8500ffffff 59 ff7508 8bce }
$sequence_8hex{ 3b0d???????? 57 7358 8bc1 c1f805 8d3c85007d2700 8bc1 }
$sequence_9hex{ 47 83f80b 0f8777020000 ff248534e32600 80fb31 7c0c 80fb39 }

Condition

7 of them and filesize < 229376

In plain words (Heuristic)

  • The file must be smaller than 229376 (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: fec73e07-e8b3-57ed-9bd4-5b2b5278fd29

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