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MALPEDIA_Win_Tiger_Rat_Auto

autogenerated rule brought to you by yara-signator

MalwareTiger RatMalpedia 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: Tiger Rat.

It defines 16 patterns (0 text, 16 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-tiger-rat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Tiger_Rat_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "bb552065-88a9-5f82-907d-8836dc928a50"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.tiger_rat"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.tiger_rat_auto.yar#L1-L166"
		license_url = "N/A"
		logic_hash = "65882f2780c0847bc47b54c18167ad25463eebf3cfee7497aef68625066b38d3"
		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 = { 458bc1 8bc8 440fb60c3a 41d3f8 }
		$sequence_1 = { 4103c8 458bd8 81e1ff000080 7d0a ffc9 81c900ffffff }
		$sequence_2 = { 0f11442440 0f849b000000 498d4d28 ff15???????? 498b7520 4c8d4c2438 }
		$sequence_3 = { 488bf8 e8???????? 33db 4c8d0525ffffff }
		$sequence_4 = { 33c9 48895c2428 c6464201 895c2420 ff15???????? }
		$sequence_5 = { 4885c0 488905???????? 0f95c0 488b5c2438 4883c420 }
		$sequence_6 = { 83f901 743f 4c897c2450 8d79ff }
		$sequence_7 = { 4885c0 7412 b001 488b5c2438 488b7c2440 }
		$sequence_8 = { 488b8424c0000000 448938 498bc4 4883c470 415f 415e }
		$sequence_9 = { 33d2 41b8d0070000 488bcb f30f7f442430 c705????????12000000 }
		$sequence_10 = { c3 48895c2408 57 4883ec20 488d1de7410100 488d3de0410100 }
		$sequence_11 = { 488bcb e8???????? 8b0d???????? 41b800800000 030d???????? }
		$sequence_12 = { 488bce c745f74511197b c745fb14483240 8905???????? c745ff5c6e560b 66c745035400 c705????????33000000 }
		$sequence_13 = { 33c0 4883c468 c3 3305???????? }
		$sequence_14 = { 488d5567 8bd8 0faf0d???????? 890d???????? 488d4d6f ff15???????? }
		$sequence_15 = { c744245808377817 c744245c4c35571a 8905???????? c74424602a420000 c644244000 e8???????? }

	condition:
		7 of them and filesize < 557056
}

Strings (16 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 458bc1 8bc8 440fb60c3a 41d3f8 }
$sequence_1hex{ 4103c8 458bd8 81e1ff000080 7d0a ffc9 81c900ffffff }
$sequence_2hex{ 0f11442440 0f849b000000 498d4d28 ff15???????? 498b7520 4c8d4c2438 }
$sequence_3hex{ 488bf8 e8???????? 33db 4c8d0525ffffff }
$sequence_4hex{ 33c9 48895c2428 c6464201 895c2420 ff15???????? }
$sequence_5hex{ 4885c0 488905???????? 0f95c0 488b5c2438 4883c420 }
$sequence_6hex{ 83f901 743f 4c897c2450 8d79ff }
$sequence_7hex{ 4885c0 7412 b001 488b5c2438 488b7c2440 }
$sequence_8hex{ 488b8424c0000000 448938 498bc4 4883c470 415f 415e }
$sequence_9hex{ 33d2 41b8d0070000 488bcb f30f7f442430 c705????????12000000 }
$sequence_10hex{ c3 48895c2408 57 4883ec20 488d1de7410100 488d3de0410100 }
$sequence_11hex{ 488bcb e8???????? 8b0d???????? 41b800800000 030d???????? }
$sequence_12hex{ 488bce c745f74511197b c745fb14483240 8905???????? c745ff5c6e560b 66c745035400 c705????????33000000 }
$sequence_13hex{ 33c0 4883c468 c3 3305???????? }
$sequence_14hex{ 488d5567 8bd8 0faf0d???????? 890d???????? 488d4d6f ff15???????? }
$sequence_15hex{ c744245808377817 c744245c4c35571a 8905???????? c74424602a420000 c644244000 e8???????? }

Condition

7 of them and filesize < 557056

In plain words (Heuristic)

  • The file must be smaller than 557056 (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: bb552065-88a9-5f82-907d-8836dc928a50

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

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