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MALPEDIA_Win_Beatdrop_Auto

autogenerated rule brought to you by yara-signator

MalwareBeatdropMalpedia 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: Beatdrop.

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

Summary generated from the rule's metadata and condition.

Rule source

win-beatdrop-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Beatdrop_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "46467822-0837-5e0e-ad5a-2e4533e72c6b"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.beatdrop"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.beatdrop_auto.yar#L1-L121"
		license_url = "N/A"
		logic_hash = "faf5a42ec876bde3a85e66f73b941a8c1aa9bf26b9c4c55dcbc45470ff897f6e"
		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 = { 41c1e910 0fb6c9 890c24 4489f9 }
		$sequence_1 = { 413384bd000c0000 4489cf 334538 41c1eb18 c1ef10 4133949d00040000 478b5c9d00 }
		$sequence_2 = { 334650 450fb6d2 4333849400040000 440fb6d1 4133849c00080000 438b1c9c 43339c94000c0000 }
		$sequence_3 = { 453384ac00080000 41c1e918 0fb6ec c1e810 450fb6d2 478b0c8c }
		$sequence_4 = { c1e810 418b549500 0fb6c0 413394b5000c0000 c1eb18 }
		$sequence_5 = { 4189cf 3396b0000000 41c1ef18 440fb6d3 4133948400040000 4489c0 0fb6c4 }
		$sequence_6 = { 440fb6da 458b3484 4489c0 4733b494000c0000 440fb6d1 }
		$sequence_7 = { 418b549500 0fb6c0 413394b5000c0000 c1eb18 33552c }
		$sequence_8 = { 4883ec28 448b4204 442b02 4989d3 4183f8ff }
		$sequence_9 = { 895481fc 483de3000000 75bf 448b0481 48ffc0 8b1481 }

	condition:
		7 of them and filesize < 584704
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 41c1e910 0fb6c9 890c24 4489f9 }
$sequence_1hex{ 413384bd000c0000 4489cf 334538 41c1eb18 c1ef10 4133949d00040000 478b5c9d00 }
$sequence_2hex{ 334650 450fb6d2 4333849400040000 440fb6d1 4133849c00080000 438b1c9c 43339c94000c0000 }
$sequence_3hex{ 453384ac00080000 41c1e918 0fb6ec c1e810 450fb6d2 478b0c8c }
$sequence_4hex{ c1e810 418b549500 0fb6c0 413394b5000c0000 c1eb18 }
$sequence_5hex{ 4189cf 3396b0000000 41c1ef18 440fb6d3 4133948400040000 4489c0 0fb6c4 }
$sequence_6hex{ 440fb6da 458b3484 4489c0 4733b494000c0000 440fb6d1 }
$sequence_7hex{ 418b549500 0fb6c0 413394b5000c0000 c1eb18 33552c }
$sequence_8hex{ 4883ec28 448b4204 442b02 4989d3 4183f8ff }
$sequence_9hex{ 895481fc 483de3000000 75bf 448b0481 48ffc0 8b1481 }

Condition

7 of them and filesize < 584704

In plain words (Heuristic)

  • The file must be smaller than 584704 (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: 46467822-0837-5e0e-ad5a-2e4533e72c6b

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