YARA · Malpedia signator rules
MALPEDIA_Win_Shadowhammer_Auto
autogenerated rule brought to you by yara-signator
MalwareShadowhammerMalpedia 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: Shadowhammer.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-shadowhammer-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Shadowhammer_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "297b3240-9669-5c2f-9f70-bac21eea5e4b"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.shadowhammer"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.shadowhammer_auto.yar#L1-L125"
= "N/A"
= "910985146f49579376d7edf79ed10031d031e34957a06d7ed180548cab7651ac"
= 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 = { 56 57 33f6 bfa8a24000 833cf55490400001 751d 8d04f550904000 }
$sequence_1 = { 6a69 668945ae 58 6a49 59 6a44 }
$sequence_2 = { 897e70 c686c800000043 c6864b01000043 c7466818934000 6a0d }
$sequence_3 = { 5f c3 56 8b35???????? 68287c4000 57 ffd6 }
$sequence_4 = { c3 55 8bec 81ec4c030000 c785e4fcffff00b006c7 c785e8fcffffdab6ace6 c785ecfcffffc25c3799 }
$sequence_5 = { 3d40984000 741b 3998b4000000 7513 50 e8???????? }
$sequence_6 = { ff45fc 8b45fc 3b45f4 7cb7 ebae 8b45f0 ebab }
$sequence_7 = { 897e14 897e70 c686c800000043 c6864b01000043 c7466818934000 }
$sequence_8 = { 817de00c714000 7311 8b45e0 8b00 85c0 7402 ffd0 }
$sequence_9 = { 8b401c 8b08 3bc8 7439 }
condition:
7 of them and filesize < 49152
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 56 57 33f6 bfa8a24000 833cf55490400001 751d 8d04f550904000 } | |
| $sequence_1 | hex | { 6a69 668945ae 58 6a49 59 6a44 } | |
| $sequence_2 | hex | { 897e70 c686c800000043 c6864b01000043 c7466818934000 6a0d } | |
| $sequence_3 | hex | { 5f c3 56 8b35???????? 68287c4000 57 ffd6 } | |
| $sequence_4 | hex | { c3 55 8bec 81ec4c030000 c785e4fcffff00b006c7 c785e8fcffffdab6ace6 c785ecfcffffc25c3799 } | |
| $sequence_5 | hex | { 3d40984000 741b 3998b4000000 7513 50 e8???????? } | |
| $sequence_6 | hex | { ff45fc 8b45fc 3b45f4 7cb7 ebae 8b45f0 ebab } | |
| $sequence_7 | hex | { 897e14 897e70 c686c800000043 c6864b01000043 c7466818934000 } | |
| $sequence_8 | hex | { 817de00c714000 7311 8b45e0 8b00 85c0 7402 ffd0 } | |
| $sequence_9 | hex | { 8b401c 8b08 3bc8 7439 } |
Condition
7 of them and filesize < 49152In plain words (Heuristic)
- The file must be smaller than 49152 (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: 297b3240-9669-5c2f-9f70-bac21eea5e4b
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