YARA · Malpedia signator rules
MALPEDIA_Win_Helminth_Auto
autogenerated rule brought to you by yara-signator
MalwareHelminthMalpedia 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: Helminth.
It defines 15 patterns (0 text, 15 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-helminth-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Helminth_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "91b777dc-9a9a-53e2-ac1a-786f5d0ed930"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.helminth"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.helminth_auto.yar#L1-L157"
= "N/A"
= "45ac2fe31629115cc6c58e0ba75e5ac93218e89992c3db653af839bde17af43a"
= 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 = { a1???????? 68e8030000 8907 e8???????? }
$sequence_1 = { b9???????? e8???????? b9???????? e8???????? 8b35???????? b800100000 8b0d???????? }
$sequence_2 = { 897de0 8b049d70750110 0500080000 3bf8 0f839c000000 f6470401 755b }
$sequence_3 = { ffb5f4fdffff 8d85fcfdffff 6a0a 6a01 57 50 }
$sequence_4 = { c1e106 8b048570750110 804c080420 8b4d14 }
$sequence_5 = { 75f0 8b75f0 b9???????? 8bd6 2bd1 }
$sequence_6 = { 895df0 ff15???????? 50 ff15???????? 85c0 7406 8d4df4 }
$sequence_7 = { 2c2c 13142c 2c2c 2c2c }
$sequence_8 = { 2b742414 894c2424 0fb70a 66890c16 8d5202 }
$sequence_9 = { 68???????? 50 ff15???????? 8945c0 85c0 }
$sequence_10 = { e8???????? 8b75c8 59 56 }
$sequence_11 = { 66890c17 8d5202 6685c9 75f1 8b542410 33ff }
$sequence_12 = { 663b0473 7510 46 42 3bd7 7ced }
$sequence_13 = { 75f4 2b4d08 d1f9 3bd1 }
$sequence_14 = { 50 e8???????? 83c40c 89b5e8feffff }
condition:
7 of them and filesize < 479232
}
Strings (15 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { a1???????? 68e8030000 8907 e8???????? } | |
| $sequence_1 | hex | { b9???????? e8???????? b9???????? e8???????? 8b35???????? b800100000 8b0d???????? } | |
| $sequence_2 | hex | { 897de0 8b049d70750110 0500080000 3bf8 0f839c000000 f6470401 755b } | |
| $sequence_3 | hex | { ffb5f4fdffff 8d85fcfdffff 6a0a 6a01 57 50 } | |
| $sequence_4 | hex | { c1e106 8b048570750110 804c080420 8b4d14 } | |
| $sequence_5 | hex | { 75f0 8b75f0 b9???????? 8bd6 2bd1 } | |
| $sequence_6 | hex | { 895df0 ff15???????? 50 ff15???????? 85c0 7406 8d4df4 } | |
| $sequence_7 | hex | { 2c2c 13142c 2c2c 2c2c } | |
| $sequence_8 | hex | { 2b742414 894c2424 0fb70a 66890c16 8d5202 } | |
| $sequence_9 | hex | { 68???????? 50 ff15???????? 8945c0 85c0 } | |
| $sequence_10 | hex | { e8???????? 8b75c8 59 56 } | |
| $sequence_11 | hex | { 66890c17 8d5202 6685c9 75f1 8b542410 33ff } | |
| $sequence_12 | hex | { 663b0473 7510 46 42 3bd7 7ced } | |
| $sequence_13 | hex | { 75f4 2b4d08 d1f9 3bd1 } | |
| $sequence_14 | hex | { 50 e8???????? 83c40c 89b5e8feffff } |
Condition
7 of them and filesize < 479232In plain words (Heuristic)
- The file must be smaller than 479232 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
Test this rule in your browser
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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: 91b777dc-9a9a-53e2-ac1a-786f5d0ed930
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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