YARA · Malpedia signator rules
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:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "46467822-0837-5e0e-ad5a-2e4533e72c6b"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.beatdrop"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.beatdrop_auto.yar#L1-L121"
= "N/A"
= "faf5a42ec876bde3a85e66f73b941a8c1aa9bf26b9c4c55dcbc45470ff897f6e"
= 75
= 75
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260422"
= "a182e35da64e6d71cb55f125c4d4225196523f14"
= "20260504"
= "CC BY-SA 4.0"
= "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)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 41c1e910 0fb6c9 890c24 4489f9 } | |
| $sequence_1 | hex | { 413384bd000c0000 4489cf 334538 41c1eb18 c1ef10 4133949d00040000 478b5c9d00 } | |
| $sequence_2 | hex | { 334650 450fb6d2 4333849400040000 440fb6d1 4133849c00080000 438b1c9c 43339c94000c0000 } | |
| $sequence_3 | hex | { 453384ac00080000 41c1e918 0fb6ec c1e810 450fb6d2 478b0c8c } | |
| $sequence_4 | hex | { c1e810 418b549500 0fb6c0 413394b5000c0000 c1eb18 } | |
| $sequence_5 | hex | { 4189cf 3396b0000000 41c1ef18 440fb6d3 4133948400040000 4489c0 0fb6c4 } | |
| $sequence_6 | hex | { 440fb6da 458b3484 4489c0 4733b494000c0000 440fb6d1 } | |
| $sequence_7 | hex | { 418b549500 0fb6c0 413394b5000c0000 c1eb18 33552c } | |
| $sequence_8 | hex | { 4883ec28 448b4204 442b02 4989d3 4183f8ff } | |
| $sequence_9 | hex | { 895481fc 483de3000000 75bf 448b0481 48ffc0 8b1481 } |
Condition
7 of them and filesize < 584704In 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.
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.
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)
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
| 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 |
Tags:FILE
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