YARA · Malpedia signator rules
MALPEDIA_Win_Recordbreaker_Auto
autogenerated rule brought to you by yara-signator
MalwareRecordbreakerMalpedia 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: Recordbreaker.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-recordbreaker-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Recordbreaker_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "08560daa-5fe8-595e-9dbc-a441ed4bb00d"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.recordbreaker"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.recordbreaker_auto.yar#L1-L121"
= "N/A"
= "0c3c04c3e787bdbde6eff7122bcf70b1628690be33e8fdffdc0fb66bd4e37294"
= 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 = { ff15???????? 83c8ff eb2f ff35???????? }
$sequence_1 = { e8???????? 8b15???????? 8bc8 e8???????? 8b55f0 }
$sequence_2 = { 51 8b4dfc 8975d0 e8???????? }
$sequence_3 = { 7407 56 ff15???????? 837db400 7409 ff75b4 }
$sequence_4 = { ff15???????? 57 ff750c 8bf0 ff15???????? 83c410 }
$sequence_5 = { 037d10 40 8901 a5 a5 a5 a5 }
$sequence_6 = { ff751c ff7518 ff7510 ff750c 53 53 e8???????? }
$sequence_7 = { 8bd9 663bc8 7416 6a22 8bc2 }
$sequence_8 = { 8bd6 e8???????? 8b15???????? 8bc8 8903 e8???????? }
$sequence_9 = { 33c0 50 50 6a04 50 6a01 6800000080 }
condition:
7 of them and filesize < 232312
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { ff15???????? 83c8ff eb2f ff35???????? } | |
| $sequence_1 | hex | { e8???????? 8b15???????? 8bc8 e8???????? 8b55f0 } | |
| $sequence_2 | hex | { 51 8b4dfc 8975d0 e8???????? } | |
| $sequence_3 | hex | { 7407 56 ff15???????? 837db400 7409 ff75b4 } | |
| $sequence_4 | hex | { ff15???????? 57 ff750c 8bf0 ff15???????? 83c410 } | |
| $sequence_5 | hex | { 037d10 40 8901 a5 a5 a5 a5 } | |
| $sequence_6 | hex | { ff751c ff7518 ff7510 ff750c 53 53 e8???????? } | |
| $sequence_7 | hex | { 8bd9 663bc8 7416 6a22 8bc2 } | |
| $sequence_8 | hex | { 8bd6 e8???????? 8b15???????? 8bc8 8903 e8???????? } | |
| $sequence_9 | hex | { 33c0 50 50 6a04 50 6a01 6800000080 } |
Condition
7 of them and filesize < 232312In plain words (Heuristic)
- The file must be smaller than 232312 (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: 08560daa-5fe8-595e-9dbc-a441ed4bb00d
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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