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MALPEDIA_Win_Rhino_Auto

autogenerated rule brought to you by yara-signator

MalwareRhinoMalpedia 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: Rhino.

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

Summary generated from the rule's metadata and condition.

Rule source

win-rhino-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Rhino_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "65eddb08-1e01-51ca-aab1-68bf6350530c"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.rhino"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.rhino_auto.yar#L1-L132"
		license_url = "N/A"
		logic_hash = "52499ce11e9ade581b226e5885e4ae7366a465260ba6a9fd82f4ac5a32e1c067"
		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 = { 7528 8d85c0feffff c785c0feffff14010000 50 ff15???????? 83bdd0feffff02 740f }
		$sequence_1 = { 03fa 894110 8b4c2418 13de 8b01 f76514 8bf0 }
		$sequence_2 = { c20c00 ff7510 8b06 ff7508 ff5020 84c0 74cf }
		$sequence_3 = { 03ca 03c1 eb03 8b4710 8b5c2420 8bd0 }
		$sequence_4 = { 5b c20400 6a2c b8???????? e8???????? 8bf9 8b750c }
		$sequence_5 = { e8???????? 83f8ff 7432 50 6a00 8d45b0 8bce }
		$sequence_6 = { 33442434 8bcf 3344242c 33442420 d1c0 8944242c }
		$sequence_7 = { c1cb02 33c7 03c1 03f0 8b442464 8bce c1c105 }
		$sequence_8 = { 8945a4 83f801 7603 48 eb02 33c0 23c6 }
		$sequence_9 = { 8b4f14 8b4114 3b410c 7507 8bcf e8???????? 33c0 }

	condition:
		7 of them and filesize < 1288192
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 7528 8d85c0feffff c785c0feffff14010000 50 ff15???????? 83bdd0feffff02 740f }
$sequence_1hex{ 03fa 894110 8b4c2418 13de 8b01 f76514 8bf0 }
$sequence_2hex{ c20c00 ff7510 8b06 ff7508 ff5020 84c0 74cf }
$sequence_3hex{ 03ca 03c1 eb03 8b4710 8b5c2420 8bd0 }
$sequence_4hex{ 5b c20400 6a2c b8???????? e8???????? 8bf9 8b750c }
$sequence_5hex{ e8???????? 83f8ff 7432 50 6a00 8d45b0 8bce }
$sequence_6hex{ 33442434 8bcf 3344242c 33442420 d1c0 8944242c }
$sequence_7hex{ c1cb02 33c7 03c1 03f0 8b442464 8bce c1c105 }
$sequence_8hex{ 8945a4 83f801 7603 48 eb02 33c0 23c6 }
$sequence_9hex{ 8b4f14 8b4114 3b410c 7507 8bcf e8???????? 33c0 }

Condition

7 of them and filesize < 1288192

In plain words (Heuristic)

  • The file must be smaller than 1288192 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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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: 65eddb08-1e01-51ca-aab1-68bf6350530c

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