YARA · Malpedia signator rules
MALPEDIA_Win_Broler_Auto
autogenerated rule brought to you by yara-signator
- 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: Broler.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-broler-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Broler_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "eb6df9f0-2da3-5a4e-8f19-bc9c64435ce5"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.broler"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.broler_auto.yar#L1-L125"
= "N/A"
= "db1febc359ff2ef3b46431432b39f10a7c85b60f194ad8eed00b389b369e2de8"
= 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 = { 51 6a01 53 ff15???????? 8bf0 ff15???????? 3bf3 }
$sequence_1 = { 8a08 880c02 40 84c9 75f6 3975b0 }
$sequence_2 = { c785c0feffff0f000000 899dbcfeffff 889dacfeffff 39b5a4feffff }
$sequence_3 = { 8bf0 8d45d4 3bc6 7461 837de810 720c 8b4dd4 }
$sequence_4 = { 57 8d8da8feffff e8???????? 83c408 33c0 8a4c05f0 8888f8cd4100 }
$sequence_5 = { 8b3d???????? 53 ffd7 56 ffd7 8d8d70fdffff }
$sequence_6 = { e9???????? bf2a000000 b8???????? 8db5acfdffff c785c0fdffff0f000000 899dbcfdffff 889dacfdffff }
$sequence_7 = { 8bdf c1fb18 c1f818 81e3ff000000 3283085a4100 8b5d0c }
$sequence_8 = { 3299085a4100 c1fe08 81e6ff000000 8bca c1f908 88580d }
$sequence_9 = { c20400 5e 83c8ff 5b 5d }
condition:
7 of them and filesize < 275456
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 51 6a01 53 ff15???????? 8bf0 ff15???????? 3bf3 } | |
| $sequence_1 | hex | { 8a08 880c02 40 84c9 75f6 3975b0 } | |
| $sequence_2 | hex | { c785c0feffff0f000000 899dbcfeffff 889dacfeffff 39b5a4feffff } | |
| $sequence_3 | hex | { 8bf0 8d45d4 3bc6 7461 837de810 720c 8b4dd4 } | |
| $sequence_4 | hex | { 57 8d8da8feffff e8???????? 83c408 33c0 8a4c05f0 8888f8cd4100 } | |
| $sequence_5 | hex | { 8b3d???????? 53 ffd7 56 ffd7 8d8d70fdffff } | |
| $sequence_6 | hex | { e9???????? bf2a000000 b8???????? 8db5acfdffff c785c0fdffff0f000000 899dbcfdffff 889dacfdffff } | |
| $sequence_7 | hex | { 8bdf c1fb18 c1f818 81e3ff000000 3283085a4100 8b5d0c } | |
| $sequence_8 | hex | { 3299085a4100 c1fe08 81e6ff000000 8bca c1f908 88580d } | |
| $sequence_9 | hex | { c20400 5e 83c8ff 5b 5d } |
Condition
7 of them and filesize < 275456In plain words (Heuristic)
- The file must be smaller than 275456 (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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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: eb6df9f0-2da3-5a4e-8f19-bc9c64435ce5
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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