YARA · Malpedia signator rules
MALPEDIA_Win_Remexi_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 / 73
What this rule detects
autogenerated rule brought to you by yara-signator
Associated malware family: Remexi.
It defines 29 patterns (0 text, 29 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-remexi-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Remexi_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "d8633079-b621-5520-8ad7-535ada6d6eda"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.remexi"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.remexi_auto.yar#L1-L269"
= "N/A"
= "a9e8da1b3a009686668e2d3e1da19dafc09f7beeddc307847ba66c59fe4b8748"
= 75
= 73
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260422"
= "a182e35da64e6d71cb55f125c4d4225196523f14"
= "20260504"
= "CC BY-SA 4.0"
= "TLP:WHITE"
strings:
$sequence_0 = { 56 c706ffffffff e8???????? 83c404 }
$sequence_1 = { 50 ff15???????? 8b0d???????? 8b35???????? 890d???????? }
$sequence_2 = { ff15???????? 6a10 8d4ddc 8bf0 51 56 ff15???????? }
$sequence_3 = { 41 50 a3???????? c705????????02000000 890d???????? ffd6 }
$sequence_4 = { e8???????? 83ec1c 8bcc 89642430 6aff 53 }
$sequence_5 = { 8945e8 b802000000 51 668945dc }
$sequence_6 = { 8b45d8 8b4818 8b5104 50 8955e0 }
$sequence_7 = { 8907 894704 894708 6a01 89470c }
$sequence_8 = { ff15???????? 8bf0 85f6 7513 8b45d8 }
$sequence_9 = { 53 50 ff15???????? 3dffffff00 }
$sequence_10 = { 53 83cbff 57 8b3d???????? }
$sequence_11 = { c705????????ffffffff c705????????01000000 c705????????00000000 ffd6 83ffff 7407 }
$sequence_12 = { 8945e0 8945e4 8945e8 b802000000 }
$sequence_13 = { 014b30 bf???????? b903000000 8b742418 }
$sequence_14 = { 488d058da00100 c3 4053 4883ec20 488bd9 488d0d7ca00100 483bd9 }
$sequence_15 = { 015330 41 894b0c e9???????? }
$sequence_16 = { 015330 e9???????? 8b5314 3b5318 0f8d23020000 }
$sequence_17 = { 015930 3b542408 0f8d10ffffff 8d3c52 }
$sequence_18 = { 488b8c24a0000000 e8???????? 48c78424b80000000f000000 4c89bc24b0000000 c68424a000000000 }
$sequence_19 = { 488b4c2470 e8???????? 48c78424880000000f000000 48c784248000000000000000 c644247000 41b806000000 488d151b3d0200 }
$sequence_20 = { 016b04 83c41c 5b 5e }
$sequence_21 = { 488d15c7780200 480f45d0 881f 381a 740e 4883cbff 90 }
$sequence_22 = { 015518 8b5d14 85db 0f8565fbffff }
$sequence_23 = { 488b09 488d41ff 4883f8fd 7714 ff15???????? 85c0 750a }
$sequence_24 = { 015330 8a10 eb84 8a5001 }
$sequence_25 = { 7532 b902010209 e8???????? 90 48837b1810 7208 }
$sequence_26 = { 438d0401 4c8d1d31490100 418bca 99 2bc2 }
$sequence_27 = { 016b24 89e8 83c44c 5b }
$sequence_28 = { 488b01 8a08 880a 33c9 488d1c32 4c8d05c71a0100 }
condition:
7 of them and filesize < 614400
}
Strings (29 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 56 c706ffffffff e8???????? 83c404 } | |
| $sequence_1 | hex | { 50 ff15???????? 8b0d???????? 8b35???????? 890d???????? } | |
| $sequence_2 | hex | { ff15???????? 6a10 8d4ddc 8bf0 51 56 ff15???????? } | |
| $sequence_3 | hex | { 41 50 a3???????? c705????????02000000 890d???????? ffd6 } | |
| $sequence_4 | hex | { e8???????? 83ec1c 8bcc 89642430 6aff 53 } | |
| $sequence_5 | hex | { 8945e8 b802000000 51 668945dc } | |
| $sequence_6 | hex | { 8b45d8 8b4818 8b5104 50 8955e0 } | |
| $sequence_7 | hex | { 8907 894704 894708 6a01 89470c } | |
| $sequence_8 | hex | { ff15???????? 8bf0 85f6 7513 8b45d8 } | |
| $sequence_9 | hex | { 53 50 ff15???????? 3dffffff00 } | |
| $sequence_10 | hex | { 53 83cbff 57 8b3d???????? } | |
| $sequence_11 | hex | { c705????????ffffffff c705????????01000000 c705????????00000000 ffd6 83ffff 7407 } | |
| $sequence_12 | hex | { 8945e0 8945e4 8945e8 b802000000 } | |
| $sequence_13 | hex | { 014b30 bf???????? b903000000 8b742418 } | |
| $sequence_14 | hex | { 488d058da00100 c3 4053 4883ec20 488bd9 488d0d7ca00100 483bd9 } | |
| $sequence_15 | hex | { 015330 41 894b0c e9???????? } | |
| $sequence_16 | hex | { 015330 e9???????? 8b5314 3b5318 0f8d23020000 } | |
| $sequence_17 | hex | { 015930 3b542408 0f8d10ffffff 8d3c52 } | |
| $sequence_18 | hex | { 488b8c24a0000000 e8???????? 48c78424b80000000f000000 4c89bc24b0000000 c68424a000000000 } | |
| $sequence_19 | hex | { 488b4c2470 e8???????? 48c78424880000000f000000 48c784248000000000000000 c644247000 41b806000000 488d151b3d0200 } | |
| $sequence_20 | hex | { 016b04 83c41c 5b 5e } | |
| $sequence_21 | hex | { 488d15c7780200 480f45d0 881f 381a 740e 4883cbff 90 } | |
| $sequence_22 | hex | { 015518 8b5d14 85db 0f8565fbffff } | |
| $sequence_23 | hex | { 488b09 488d41ff 4883f8fd 7714 ff15???????? 85c0 750a } | |
| $sequence_24 | hex | { 015330 8a10 eb84 8a5001 } | |
| $sequence_25 | hex | { 7532 b902010209 e8???????? 90 48837b1810 7208 } | |
| $sequence_26 | hex | { 438d0401 4c8d1d31490100 418bca 99 2bc2 } | |
| $sequence_27 | hex | { 016b24 89e8 83c44c 5b } | |
| $sequence_28 | hex | { 488b01 8a08 880a 33c9 488d1c32 4c8d05c71a0100 } |
Condition
7 of them and filesize < 614400In plain words (Heuristic)
- The file must be smaller than 614400 (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: d8633079-b621-5520-8ad7-535ada6d6eda
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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