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MALPEDIA_Win_Rincux_Auto

autogenerated rule brought to you by yara-signator

MalwareRincuxMalpedia 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: Rincux.

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

Summary generated from the rule's metadata and condition.

Rule source

win-rincux-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Rincux_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "1ebc8c5d-ef18-5761-8afe-438a7a3d23e6"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.rincux"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.rincux_auto.yar#L1-L132"
		license_url = "N/A"
		logic_hash = "a7c555ad4c400b92307554565b2dd8f3f76414782040da1e8eee3f25b55db515"
		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 = { 83c504 83c304 83c204 e9???????? 8b4c2420 8bfb 2bf9 }
		$sequence_1 = { c644241a73 c644241b6b c644241c79 c644241d00 ffd6 68???????? 68???????? }
		$sequence_2 = { c645e974 c645ea61 c645eb72 c645ec74 c645ed00 c645dc54 c645dd53 }
		$sequence_3 = { f3a5 50 899c24a8000000 e8???????? b905000000 8d742420 8dbc2480000000 }
		$sequence_4 = { 8b4c2414 a3???????? 85c0 890d???????? 7418 6a00 6a00 }
		$sequence_5 = { c70315000000 894348 8b4348 85c0 7468 3be8 732f }
		$sequence_6 = { 8b7218 8d1401 3bd6 7604 2bf0 8bce 8b54243c }
		$sequence_7 = { 8b8c2450010000 8b1d???????? 81e1ffff0000 51 56 68???????? }
		$sequence_8 = { 03e8 03d7 896e08 895614 8b4b1c 89442438 8b4308 }
		$sequence_9 = { 5e 5d 5b 81c404020000 c20400 8b9c2418020000 }

	condition:
		7 of them and filesize < 392192
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 83c504 83c304 83c204 e9???????? 8b4c2420 8bfb 2bf9 }
$sequence_1hex{ c644241a73 c644241b6b c644241c79 c644241d00 ffd6 68???????? 68???????? }
$sequence_2hex{ c645e974 c645ea61 c645eb72 c645ec74 c645ed00 c645dc54 c645dd53 }
$sequence_3hex{ f3a5 50 899c24a8000000 e8???????? b905000000 8d742420 8dbc2480000000 }
$sequence_4hex{ 8b4c2414 a3???????? 85c0 890d???????? 7418 6a00 6a00 }
$sequence_5hex{ c70315000000 894348 8b4348 85c0 7468 3be8 732f }
$sequence_6hex{ 8b7218 8d1401 3bd6 7604 2bf0 8bce 8b54243c }
$sequence_7hex{ 8b8c2450010000 8b1d???????? 81e1ffff0000 51 56 68???????? }
$sequence_8hex{ 03e8 03d7 896e08 895614 8b4b1c 89442438 8b4308 }
$sequence_9hex{ 5e 5d 5b 81c404020000 c20400 8b9c2418020000 }

Condition

7 of them and filesize < 392192

In plain words (Heuristic)

  • The file must be smaller than 392192 (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: 1ebc8c5d-ef18-5761-8afe-438a7a3d23e6

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