YARA · Malpedia signator rules
MALPEDIA_Win_Artra_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: Artra.
It defines 26 patterns (0 text, 26 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-artra-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Artra_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "eb12c6f9-dac9-5b66-aa45-bdd20c909283"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.artra"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.artra_auto.yar#L1-L267"
= "N/A"
= "473effce9bb07cb752c362a0c1099bfec79c8ed23316cdeddeb5a35e18fbc237"
= 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 = { 51 8bc6 57 33c9 8d7801 8da42400000000 8a10 }
$sequence_1 = { 5d 5b 8b442410 5f 5e 83c41c }
$sequence_2 = { 2bc7 3bc8 72e3 8bc6 8d5001 5f 8a08 }
$sequence_3 = { 800431f3 8bc6 41 8d7801 8d9b00000000 8a10 40 }
$sequence_4 = { 83c41c c21000 5f 33c0 5e }
$sequence_5 = { 5f 8a08 40 84c9 75f9 2bc2 880c30 }
$sequence_6 = { 53 8b1d???????? 55 8b2d???????? 90 }
$sequence_7 = { 8a08 880a 40 42 84c9 75f6 e8???????? }
$sequence_8 = { bb0f000000 895c2468 897c2464 c644245400 3974244c 720d }
$sequence_9 = { 8b4c2414 51 ff15???????? 8d842488030000 8bc8 }
$sequence_10 = { 8d54241c 52 ffd7 85c0 75cc 5d 5b }
$sequence_11 = { 8d442414 50 ffd7 85c0 7445 53 8b1d???????? }
$sequence_12 = { ff15???????? 8bf8 85ff 0f8488000000 6a00 57 ff15???????? }
$sequence_13 = { 57 ff15???????? 6a6d 56 ff15???????? 8bf0 }
$sequence_14 = { 2bc2 03fb 8a4f01 47 84c9 }
$sequence_15 = { 85f6 0f8665fdffff 83f910 8bc8 7304 8d4c2418 8b542428 }
$sequence_16 = { 8b2d???????? 90 8b542410 8d4c2410 51 56 }
$sequence_17 = { 8b542418 88442410 88442415 8d84248c030000 50 6a00 }
$sequence_18 = { 83c404 83c8ff 5e 83c408 c3 8b442404 }
$sequence_19 = { 68???????? 68???????? 6802000080 c744242000200000 ff15???????? }
$sequence_20 = { c1f905 83e01f c1e006 03048de03b4100 }
$sequence_21 = { e8???????? 8be8 0fb605???????? fec8 }
$sequence_22 = { 8b2d???????? 8b442410 8d542410 52 57 }
$sequence_23 = { c744243478364000 ffd6 8d4c2404 51 89442434 }
$sequence_24 = { 8b35???????? 6a6b 50 c744240c30000000 c744241003000000 c744241430124000 c744241800000000 }
$sequence_25 = { 8bf8 e8???????? be???????? e8???????? be???????? e8???????? }
condition:
7 of them and filesize < 811008
}
Strings (26 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 51 8bc6 57 33c9 8d7801 8da42400000000 8a10 } | |
| $sequence_1 | hex | { 5d 5b 8b442410 5f 5e 83c41c } | |
| $sequence_2 | hex | { 2bc7 3bc8 72e3 8bc6 8d5001 5f 8a08 } | |
| $sequence_3 | hex | { 800431f3 8bc6 41 8d7801 8d9b00000000 8a10 40 } | |
| $sequence_4 | hex | { 83c41c c21000 5f 33c0 5e } | |
| $sequence_5 | hex | { 5f 8a08 40 84c9 75f9 2bc2 880c30 } | |
| $sequence_6 | hex | { 53 8b1d???????? 55 8b2d???????? 90 } | |
| $sequence_7 | hex | { 8a08 880a 40 42 84c9 75f6 e8???????? } | |
| $sequence_8 | hex | { bb0f000000 895c2468 897c2464 c644245400 3974244c 720d } | |
| $sequence_9 | hex | { 8b4c2414 51 ff15???????? 8d842488030000 8bc8 } | |
| $sequence_10 | hex | { 8d54241c 52 ffd7 85c0 75cc 5d 5b } | |
| $sequence_11 | hex | { 8d442414 50 ffd7 85c0 7445 53 8b1d???????? } | |
| $sequence_12 | hex | { ff15???????? 8bf8 85ff 0f8488000000 6a00 57 ff15???????? } | |
| $sequence_13 | hex | { 57 ff15???????? 6a6d 56 ff15???????? 8bf0 } | |
| $sequence_14 | hex | { 2bc2 03fb 8a4f01 47 84c9 } | |
| $sequence_15 | hex | { 85f6 0f8665fdffff 83f910 8bc8 7304 8d4c2418 8b542428 } | |
| $sequence_16 | hex | { 8b2d???????? 90 8b542410 8d4c2410 51 56 } | |
| $sequence_17 | hex | { 8b542418 88442410 88442415 8d84248c030000 50 6a00 } | |
| $sequence_18 | hex | { 83c404 83c8ff 5e 83c408 c3 8b442404 } | |
| $sequence_19 | hex | { 68???????? 68???????? 6802000080 c744242000200000 ff15???????? } | |
| $sequence_20 | hex | { c1f905 83e01f c1e006 03048de03b4100 } | |
| $sequence_21 | hex | { e8???????? 8be8 0fb605???????? fec8 } | |
| $sequence_22 | hex | { 8b2d???????? 8b442410 8d542410 52 57 } | |
| $sequence_23 | hex | { c744243478364000 ffd6 8d4c2404 51 89442434 } | |
| $sequence_24 | hex | { 8b35???????? 6a6b 50 c744240c30000000 c744241003000000 c744241430124000 c744241800000000 } | |
| $sequence_25 | hex | { 8bf8 e8???????? be???????? e8???????? be???????? e8???????? } |
Condition
7 of them and filesize < 811008In plain words (Heuristic)
- The file must be smaller than 811008 (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: eb12c6f9-dac9-5b66-aa45-bdd20c909283
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