YARA · Malpedia signator rules
MALPEDIA_Win_Holerun_Auto
autogenerated rule brought to you by yara-signator
MalwareHolerunMalpedia 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: Holerun.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-holerun-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Holerun_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "6500cdb5-87da-5025-a7f6-75e98eb9bc04"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.holerun"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.holerun_auto.yar#L1-L121"
= "N/A"
= "3839d3ca1765d342b01a09c2ef96808892c400bfc6ae6a3566597677e96041c8"
= 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 = { 4989c8 4889c2 b900000000 488b05???????? ffd0 eb19 }
$sequence_1 = { 488d55ec 4889c1 488b05???????? ffd0 eb1c c745ec34120000 488b4570 }
$sequence_2 = { 8905???????? 8b15???????? 488b85d8000000 895008 488b85d8000000 48c744242800000000 c744242000000000 }
$sequence_3 = { 8b85cc030000 4881c458040000 5b 5d }
$sequence_4 = { e8???????? 488d85b0010000 488d15a57c0000 4889542438 }
$sequence_5 = { e8???????? 4889c2 488b45d0 8b400c }
$sequence_6 = { e9???????? 8b85cc020000 4898 488b84c590000000 ba00000000 }
$sequence_7 = { ffd0 eb1c c745ec34120000 488b4570 ba34120000 4889c1 488b05???????? }
$sequence_8 = { 488b8de0020000 e8???????? 85c0 750a b800000000 e9???????? }
$sequence_9 = { 4889c1 e8???????? 488d85b0010000 488d15a57c0000 4889542438 c744243000000000 c744242800010000 }
condition:
7 of them and filesize < 156672
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 4989c8 4889c2 b900000000 488b05???????? ffd0 eb19 } | |
| $sequence_1 | hex | { 488d55ec 4889c1 488b05???????? ffd0 eb1c c745ec34120000 488b4570 } | |
| $sequence_2 | hex | { 8905???????? 8b15???????? 488b85d8000000 895008 488b85d8000000 48c744242800000000 c744242000000000 } | |
| $sequence_3 | hex | { 8b85cc030000 4881c458040000 5b 5d } | |
| $sequence_4 | hex | { e8???????? 488d85b0010000 488d15a57c0000 4889542438 } | |
| $sequence_5 | hex | { e8???????? 4889c2 488b45d0 8b400c } | |
| $sequence_6 | hex | { e9???????? 8b85cc020000 4898 488b84c590000000 ba00000000 } | |
| $sequence_7 | hex | { ffd0 eb1c c745ec34120000 488b4570 ba34120000 4889c1 488b05???????? } | |
| $sequence_8 | hex | { 488b8de0020000 e8???????? 85c0 750a b800000000 e9???????? } | |
| $sequence_9 | hex | { 4889c1 e8???????? 488d85b0010000 488d15a57c0000 4889542438 c744243000000000 c744242800010000 } |
Condition
7 of them and filesize < 156672In plain words (Heuristic)
- The file must be smaller than 156672 (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: 6500cdb5-87da-5025-a7f6-75e98eb9bc04
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