Skip to content

YARA · Malpedia signator rules

MALPEDIA_Win_Tinytyphon_Auto

autogenerated rule brought to you by yara-signator

MalwareTinytyphonMalpedia 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: Tinytyphon.

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

Summary generated from the rule's metadata and condition.

Rule source

win-tinytyphon-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Tinytyphon_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "8401d1c7-7a44-566c-a403-1edcf7c9f03c"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.tinytyphon"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.tinytyphon_auto.yar#L1-L128"
		license_url = "N/A"
		logic_hash = "fcd0fad7aefc3a2ebd626ef8e532007ac6782fdf59d1c8aa064467c747f920b8"
		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 = { 7410 8b4508 0fbe08 0fbe550c 3bca }
		$sequence_1 = { 8d8c08d9026f67 894ddc 8b55dc c1e20e 8b45dc c1e812 0bd0 }
		$sequence_2 = { 8945b0 837db000 7406 837db0ff }
		$sequence_3 = { 6800040000 ff15???????? ebee 6a00 ff15???????? 33c0 8be5 }
		$sequence_4 = { 83c101 898ddcfeffff 8b95ecfeffff 0395dcfeffff 0fb602 3d9a000000 }
		$sequence_5 = { 8b4de4 c1e909 0bc1 8945e4 8b55e4 0355dc 8955e4 }
		$sequence_6 = { 034de4 894df8 8b55f4 0fb64204 8b4df4 0fb65105 c1e208 }
		$sequence_7 = { c1e814 0bd0 8955e0 8b4de0 034df8 894de0 8b55f4 }
		$sequence_8 = { 8945dc 8b55dc 0355e0 8955dc 8b45dc 3345e0 2345f8 }
		$sequence_9 = { e8???????? 83c408 8d4db8 51 ff15???????? 8945b0 837db000 }

	condition:
		7 of them and filesize < 90112
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 7410 8b4508 0fbe08 0fbe550c 3bca }
$sequence_1hex{ 8d8c08d9026f67 894ddc 8b55dc c1e20e 8b45dc c1e812 0bd0 }
$sequence_2hex{ 8945b0 837db000 7406 837db0ff }
$sequence_3hex{ 6800040000 ff15???????? ebee 6a00 ff15???????? 33c0 8be5 }
$sequence_4hex{ 83c101 898ddcfeffff 8b95ecfeffff 0395dcfeffff 0fb602 3d9a000000 }
$sequence_5hex{ 8b4de4 c1e909 0bc1 8945e4 8b55e4 0355dc 8955e4 }
$sequence_6hex{ 034de4 894df8 8b55f4 0fb64204 8b4df4 0fb65105 c1e208 }
$sequence_7hex{ c1e814 0bd0 8955e0 8b4de0 034df8 894de0 8b55f4 }
$sequence_8hex{ 8945dc 8b55dc 0355e0 8955dc 8b45dc 3345e0 2345f8 }
$sequence_9hex{ e8???????? 83c408 8d4db8 51 ff15???????? 8945b0 837db000 }

Condition

7 of them and filesize < 90112

In plain words (Heuristic)

  • The file must be smaller than 90112 (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: 8401d1c7-7a44-566c-a403-1edcf7c9f03c

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