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MALPEDIA_Win_Rofin_Auto

autogenerated rule brought to you by yara-signator

MalwareRofinMalpedia 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: Rofin.

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

Summary generated from the rule's metadata and condition.

Rule source

win-rofin-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Rofin_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "33bca745-2a20-5890-99dc-d81f3ede61d8"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.rofin"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.rofin_auto.yar#L1-L130"
		license_url = "N/A"
		logic_hash = "52f7ad6a2c04eb909346f30aee37ae4da04aafeb64b6808a3f4b4d476715f4ff"
		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 = { ffd5 85c0 740e 837c241801 7407 33db e9???????? }
		$sequence_1 = { f3ab 53 8d442410 6a25 50 53 }
		$sequence_2 = { f2ae f7d1 2bf9 8944241c 89442420 8d542424 }
		$sequence_3 = { 81e1ff000000 83c920 eb0c 8b742414 8bce 81e1ff000000 }
		$sequence_4 = { 8b442414 85c0 0f845a010000 b9ff000000 33c0 8dbc2491000000 }
		$sequence_5 = { 0f841a090000 ff15???????? 8b942404090000 8b4c2478 52 66c78424880000000200 898c248c000000 }
		$sequence_6 = { 8a442407 895a18 895a1c 895a20 884a24 8a4c2407 55 }
		$sequence_7 = { e8???????? f7d8 1bc0 f7d8 89442444 68???????? 8d8c2498000000 }
		$sequence_8 = { e8???????? eb73 bf???????? 83c9ff 33c0 f2ae f7d1 }
		$sequence_9 = { ff15???????? 2b442424 3d30750000 770e 3bf5 0f855bfbffff eb04 }

	condition:
		7 of them and filesize < 409600
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ ffd5 85c0 740e 837c241801 7407 33db e9???????? }
$sequence_1hex{ f3ab 53 8d442410 6a25 50 53 }
$sequence_2hex{ f2ae f7d1 2bf9 8944241c 89442420 8d542424 }
$sequence_3hex{ 81e1ff000000 83c920 eb0c 8b742414 8bce 81e1ff000000 }
$sequence_4hex{ 8b442414 85c0 0f845a010000 b9ff000000 33c0 8dbc2491000000 }
$sequence_5hex{ 0f841a090000 ff15???????? 8b942404090000 8b4c2478 52 66c78424880000000200 898c248c000000 }
$sequence_6hex{ 8a442407 895a18 895a1c 895a20 884a24 8a4c2407 55 }
$sequence_7hex{ e8???????? f7d8 1bc0 f7d8 89442444 68???????? 8d8c2498000000 }
$sequence_8hex{ e8???????? eb73 bf???????? 83c9ff 33c0 f2ae f7d1 }
$sequence_9hex{ ff15???????? 2b442424 3d30750000 770e 3bf5 0f855bfbffff eb04 }

Condition

7 of them and filesize < 409600

In plain words (Heuristic)

  • The file must be smaller than 409600 (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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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: 33bca745-2a20-5890-99dc-d81f3ede61d8

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