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MALPEDIA_Win_Trochilus_Rat_Auto

autogenerated rule brought to you by yara-signator

MalwareTrochilus 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: Trochilus Rat.

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

Summary generated from the rule's metadata and condition.

Rule source

win-trochilus-rat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Trochilus_Rat_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "2e831772-6c8c-5863-8fd8-e64f28ac5f9b"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.trochilus_rat"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.trochilus_rat_auto.yar#L1-L133"
		license_url = "N/A"
		logic_hash = "eaa68b64d4e901ed652b6419a36d2dc071cb93d5ec91aff94878b446c8325eb0"
		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 = { 83930402010000 33cd 33c0 e8???????? c9 c3 55 }
		$sequence_1 = { 3bc1 7f7f 3dc01f0000 7f78 8b4704 8bf0 8d4b2c }
		$sequence_2 = { 83be08010100ff 0f8557ffffff 85ff 740b 57 bee81d0110 e8???????? }
		$sequence_3 = { 56 ff15???????? 6a02 58 5e 5b c9 }
		$sequence_4 = { 0d00e0ffff 40 8d448118 833800 7415 ff7508 8b30 }
		$sequence_5 = { ff15???????? 399dd8fbffff 741a ffb5d8fbffff ff15???????? eb0c ff15???????? }
		$sequence_6 = { 51 53 56 57 8bf8 8d5f24 53 }
		$sequence_7 = { e8???????? 85c0 7524 68???????? 6a02 6871010000 68???????? }
		$sequence_8 = { 8b8730020100 894670 8b8734020100 894674 8b8738020100 894678 8b873c020100 }
		$sequence_9 = { 8b877c010100 99 bfe8030000 f7ff 66894602 890b }

	condition:
		7 of them and filesize < 630784
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 83930402010000 33cd 33c0 e8???????? c9 c3 55 }
$sequence_1hex{ 3bc1 7f7f 3dc01f0000 7f78 8b4704 8bf0 8d4b2c }
$sequence_2hex{ 83be08010100ff 0f8557ffffff 85ff 740b 57 bee81d0110 e8???????? }
$sequence_3hex{ 56 ff15???????? 6a02 58 5e 5b c9 }
$sequence_4hex{ 0d00e0ffff 40 8d448118 833800 7415 ff7508 8b30 }
$sequence_5hex{ ff15???????? 399dd8fbffff 741a ffb5d8fbffff ff15???????? eb0c ff15???????? }
$sequence_6hex{ 51 53 56 57 8bf8 8d5f24 53 }
$sequence_7hex{ e8???????? 85c0 7524 68???????? 6a02 6871010000 68???????? }
$sequence_8hex{ 8b8730020100 894670 8b8734020100 894674 8b8738020100 894678 8b873c020100 }
$sequence_9hex{ 8b877c010100 99 bfe8030000 f7ff 66894602 890b }

Condition

7 of them and filesize < 630784

In plain words (Heuristic)

  • The file must be smaller than 630784 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

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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: 2e831772-6c8c-5863-8fd8-e64f28ac5f9b

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