YARA · Malpedia signator rules
MALPEDIA_Win_Mebromi_Auto
autogenerated rule brought to you by yara-signator
MalwareMebromiMalpedia 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: Mebromi.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-mebromi-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Mebromi_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "3d64e85a-906f-5ddb-9f75-04eb426f7ebc"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.mebromi"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.mebromi_auto.yar#L1-L119"
= "N/A"
= "051f5b8119e90ef14be758def00ef62b697ce727969ed9523ac57414d0773faf"
= 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 = { 5f eb26 8d4508 8db694702900 6a00 }
$sequence_1 = { b82c2900d8 2c29 0000 2d29008a46 0323 }
$sequence_2 = { 8bec 8b4508 ff348520712900 ff15???????? }
$sequence_3 = { eb0f 0fb6d2 f68201a0290004 7403 }
$sequence_4 = { 56 ffd7 3bdd 5b }
$sequence_5 = { 68000000c0 68???????? ff15???????? 8b3d???????? 83f8ff a3???????? 7544 }
$sequence_6 = { 58 c20c00 ff05???????? 833d????????01 55 56 57 }
$sequence_7 = { 68???????? ff742410 ff15???????? 8bf0 85f6 7416 57 }
$sequence_8 = { 8888009f2900 eb1f 83f861 7213 83f87a }
$sequence_9 = { ff742410 ff15???????? 8bf0 85f6 7416 57 56 }
condition:
7 of them and filesize < 106496
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 5f eb26 8d4508 8db694702900 6a00 } | |
| $sequence_1 | hex | { b82c2900d8 2c29 0000 2d29008a46 0323 } | |
| $sequence_2 | hex | { 8bec 8b4508 ff348520712900 ff15???????? } | |
| $sequence_3 | hex | { eb0f 0fb6d2 f68201a0290004 7403 } | |
| $sequence_4 | hex | { 56 ffd7 3bdd 5b } | |
| $sequence_5 | hex | { 68000000c0 68???????? ff15???????? 8b3d???????? 83f8ff a3???????? 7544 } | |
| $sequence_6 | hex | { 58 c20c00 ff05???????? 833d????????01 55 56 57 } | |
| $sequence_7 | hex | { 68???????? ff742410 ff15???????? 8bf0 85f6 7416 57 } | |
| $sequence_8 | hex | { 8888009f2900 eb1f 83f861 7213 83f87a } | |
| $sequence_9 | hex | { ff742410 ff15???????? 8bf0 85f6 7416 57 56 } |
Condition
7 of them and filesize < 106496In plain words (Heuristic)
- The file must be smaller than 106496 (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: 3d64e85a-906f-5ddb-9f75-04eb426f7ebc
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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