YARA · Malpedia signator rules
MALPEDIA_Win_Pebbledash_Auto
autogenerated rule brought to you by yara-signator
MalwarePebbledashMalpedia 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: Pebbledash.
It defines 16 patterns (0 text, 16 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-pebbledash-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Pebbledash_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "32741f62-64dd-567f-aa49-1cc4f42738e6"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.pebbledash"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.pebbledash_auto.yar#L1-L172"
= "N/A"
= "1e51e4ff96dae4383b4a305d8c94bc69f42ea75b074b6acbec6bd629d39626bd"
= 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 = { 50 b9???????? e8???????? 85c0 7514 }
$sequence_1 = { 5b 5e 5f c9 c3 6a01 ff742408 }
$sequence_2 = { 894604 5e c3 55 8bec 833d????????00 750f }
$sequence_3 = { e8???????? 6888130000 ff15???????? b9???????? e8???????? 68???????? e8???????? }
$sequence_4 = { a1???????? a3???????? c3 8b442404 a3???????? c3 }
$sequence_5 = { 5e c3 55 8b6c2408 56 33f6 8b4d00 }
$sequence_6 = { 6829080000 68???????? 68???????? e8???????? }
$sequence_7 = { e8???????? 33d2 b90e000000 f7f1 }
$sequence_8 = { 0f44c5 41c1e008 8905???????? 0fb64201 440bc0 0fb64202 41c1e008 }
$sequence_9 = { 41894e08 0fb6420d 0fb64a0c c1e108 }
$sequence_10 = { e8???????? 498bcc 85c0 7512 e8???????? }
$sequence_11 = { 8b4118 894604 8b411c 894608 8b01 }
$sequence_12 = { e8???????? 4533c9 4c89742430 c744242880000000 }
$sequence_13 = { e8???????? 488d542440 488bce ffd0 85c0 }
$sequence_14 = { 415e 415d 415c 5d c3 498bcc e8???????? }
$sequence_15 = { 33c9 4889742438 4889742430 89742428 89742420 ffd0 }
condition:
7 of them and filesize < 677888
}
Strings (16 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 50 b9???????? e8???????? 85c0 7514 } | |
| $sequence_1 | hex | { 5b 5e 5f c9 c3 6a01 ff742408 } | |
| $sequence_2 | hex | { 894604 5e c3 55 8bec 833d????????00 750f } | |
| $sequence_3 | hex | { e8???????? 6888130000 ff15???????? b9???????? e8???????? 68???????? e8???????? } | |
| $sequence_4 | hex | { a1???????? a3???????? c3 8b442404 a3???????? c3 } | |
| $sequence_5 | hex | { 5e c3 55 8b6c2408 56 33f6 8b4d00 } | |
| $sequence_6 | hex | { 6829080000 68???????? 68???????? e8???????? } | |
| $sequence_7 | hex | { e8???????? 33d2 b90e000000 f7f1 } | |
| $sequence_8 | hex | { 0f44c5 41c1e008 8905???????? 0fb64201 440bc0 0fb64202 41c1e008 } | |
| $sequence_9 | hex | { 41894e08 0fb6420d 0fb64a0c c1e108 } | |
| $sequence_10 | hex | { e8???????? 498bcc 85c0 7512 e8???????? } | |
| $sequence_11 | hex | { 8b4118 894604 8b411c 894608 8b01 } | |
| $sequence_12 | hex | { e8???????? 4533c9 4c89742430 c744242880000000 } | |
| $sequence_13 | hex | { e8???????? 488d542440 488bce ffd0 85c0 } | |
| $sequence_14 | hex | { 415e 415d 415c 5d c3 498bcc e8???????? } | |
| $sequence_15 | hex | { 33c9 4889742438 4889742430 89742428 89742420 ffd0 } |
Condition
7 of them and filesize < 677888In plain words (Heuristic)
- The file must be smaller than 677888 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
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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: 32741f62-64dd-567f-aa49-1cc4f42738e6
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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