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MALPEDIA_Win_Ratel_Auto

autogenerated rule brought to you by yara-signator

MalwareRatelMalpedia 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: Ratel.

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

Summary generated from the rule's metadata and condition.

Rule source

win-ratel-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Ratel_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "12171660-a73b-5e08-821e-0cfd0432b093"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.ratel"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.ratel_auto.yar#L1-L128"
		license_url = "N/A"
		logic_hash = "a88254add45ee767c7ac8b9e9f49aa0dce32fdf9cebe8343984c5fc758e5b8f0"
		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 = { 7513 8b0482 80fb04 0f8527dd0900 8908 83c408 }
		$sequence_1 = { 89d9 ff5028 8b4308 8b530c e9???????? 8b03 89d9 }
		$sequence_2 = { e9???????? 8b4108 3b410c 0f83e5000000 0fb738 6683ffff }
		$sequence_3 = { 8b01 ff5024 0fb655ac e9???????? 8b4dc0 8855b5 }
		$sequence_4 = { 894da0 8b4808 894da8 8b4804 894da4 c6400800 }
		$sequence_5 = { 84d2 0f85e2000000 c744240c06000000 0fb7430e 66837b1000 7403 }
		$sequence_6 = { c7450cffffffff 894108 c645c200 8b410c 394108 0f83ee060000 }
		$sequence_7 = { 0fb64d98 85db 0f95c0 89ce 21c6 8b451c 830804 }
		$sequence_8 = { 52 890424 e8???????? 50 8d65f4 5b 5e }
		$sequence_9 = { 8d45d8 894590 8945d0 c645d800 83ff01 0f84bf010000 c744240c0d000000 }

	condition:
		7 of them and filesize < 2174976
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 7513 8b0482 80fb04 0f8527dd0900 8908 83c408 }
$sequence_1hex{ 89d9 ff5028 8b4308 8b530c e9???????? 8b03 89d9 }
$sequence_2hex{ e9???????? 8b4108 3b410c 0f83e5000000 0fb738 6683ffff }
$sequence_3hex{ 8b01 ff5024 0fb655ac e9???????? 8b4dc0 8855b5 }
$sequence_4hex{ 894da0 8b4808 894da8 8b4804 894da4 c6400800 }
$sequence_5hex{ 84d2 0f85e2000000 c744240c06000000 0fb7430e 66837b1000 7403 }
$sequence_6hex{ c7450cffffffff 894108 c645c200 8b410c 394108 0f83ee060000 }
$sequence_7hex{ 0fb64d98 85db 0f95c0 89ce 21c6 8b451c 830804 }
$sequence_8hex{ 52 890424 e8???????? 50 8d65f4 5b 5e }
$sequence_9hex{ 8d45d8 894590 8945d0 c645d800 83ff01 0f84bf010000 c744240c0d000000 }

Condition

7 of them and filesize < 2174976

In plain words (Heuristic)

  • The file must be smaller than 2174976 (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: 12171660-a73b-5e08-821e-0cfd0432b093

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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