YARA · Malpedia signator rules
MALPEDIA_Win_Rofin_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: Rofin.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-rofin-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Rofin_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "33bca745-2a20-5890-99dc-d81f3ede61d8"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.rofin"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.rofin_auto.yar#L1-L130"
= "N/A"
= "52f7ad6a2c04eb909346f30aee37ae4da04aafeb64b6808a3f4b4d476715f4ff"
= 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 = { ffd5 85c0 740e 837c241801 7407 33db e9???????? }
$sequence_1 = { f3ab 53 8d442410 6a25 50 53 }
$sequence_2 = { f2ae f7d1 2bf9 8944241c 89442420 8d542424 }
$sequence_3 = { 81e1ff000000 83c920 eb0c 8b742414 8bce 81e1ff000000 }
$sequence_4 = { 8b442414 85c0 0f845a010000 b9ff000000 33c0 8dbc2491000000 }
$sequence_5 = { 0f841a090000 ff15???????? 8b942404090000 8b4c2478 52 66c78424880000000200 898c248c000000 }
$sequence_6 = { 8a442407 895a18 895a1c 895a20 884a24 8a4c2407 55 }
$sequence_7 = { e8???????? f7d8 1bc0 f7d8 89442444 68???????? 8d8c2498000000 }
$sequence_8 = { e8???????? eb73 bf???????? 83c9ff 33c0 f2ae f7d1 }
$sequence_9 = { ff15???????? 2b442424 3d30750000 770e 3bf5 0f855bfbffff eb04 }
condition:
7 of them and filesize < 409600
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { ffd5 85c0 740e 837c241801 7407 33db e9???????? } | |
| $sequence_1 | hex | { f3ab 53 8d442410 6a25 50 53 } | |
| $sequence_2 | hex | { f2ae f7d1 2bf9 8944241c 89442420 8d542424 } | |
| $sequence_3 | hex | { 81e1ff000000 83c920 eb0c 8b742414 8bce 81e1ff000000 } | |
| $sequence_4 | hex | { 8b442414 85c0 0f845a010000 b9ff000000 33c0 8dbc2491000000 } | |
| $sequence_5 | hex | { 0f841a090000 ff15???????? 8b942404090000 8b4c2478 52 66c78424880000000200 898c248c000000 } | |
| $sequence_6 | hex | { 8a442407 895a18 895a1c 895a20 884a24 8a4c2407 55 } | |
| $sequence_7 | hex | { e8???????? f7d8 1bc0 f7d8 89442444 68???????? 8d8c2498000000 } | |
| $sequence_8 | hex | { e8???????? eb73 bf???????? 83c9ff 33c0 f2ae f7d1 } | |
| $sequence_9 | hex | { ff15???????? 2b442424 3d30750000 770e 3bf5 0f855bfbffff eb04 } |
Condition
7 of them and filesize < 409600In plain words (Heuristic)
- The file must be smaller than 409600 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
Test this rule in your browser
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
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: 33bca745-2a20-5890-99dc-d81f3ede61d8
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
Related rules
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04