YARA · Malpedia signator rules
MALPEDIA_Win_Firechili_Auto
autogenerated rule brought to you by yara-signator
MalwareFirechiliMalpedia 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: Firechili.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-firechili-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Firechili_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "28cfd257-2962-529a-a32d-592d4dcea4c0"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.firechili"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.firechili_auto.yar#L1-L123"
= "N/A"
= "54da2a2a6e07f200c250dd9cd8406105f845dc689c9290b895febdc48bbd5956"
= 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 = { 400fb6ff 488d4c2420 84c0 410f45ff }
$sequence_1 = { c3 e8???????? 833d????????00 74e2 4c8bc3 e8???????? 488905???????? }
$sequence_2 = { 33ff 41897b10 49897b18 33c0 498943c8 498943d0 }
$sequence_3 = { ff15???????? eb07 bb0f001cc0 eb2d 488b4c2430 8b442440 }
$sequence_4 = { 4c8d05b4430000 89442434 498bc0 48894c2420 48894c242c 895c2438 }
$sequence_5 = { 488bcf ff15???????? eb10 488bd7 }
$sequence_6 = { 0f1f00 488d0440 488d34c500000000 420fb7442e10 428b542e14 0fb6c8 }
$sequence_7 = { 48894138 41807c241000 0f848d000000 4885c0 0f8484000000 4d8bc4 498bd7 }
$sequence_8 = { 4839542420 7509 33c0 663b442428 745e ff15???????? }
$sequence_9 = { 488b4908 ff15???????? 8bd8 85c0 0f881b010000 4c8d8c24a8020000 41b848020000 }
condition:
7 of them and filesize < 91136
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 400fb6ff 488d4c2420 84c0 410f45ff } | |
| $sequence_1 | hex | { c3 e8???????? 833d????????00 74e2 4c8bc3 e8???????? 488905???????? } | |
| $sequence_2 | hex | { 33ff 41897b10 49897b18 33c0 498943c8 498943d0 } | |
| $sequence_3 | hex | { ff15???????? eb07 bb0f001cc0 eb2d 488b4c2430 8b442440 } | |
| $sequence_4 | hex | { 4c8d05b4430000 89442434 498bc0 48894c2420 48894c242c 895c2438 } | |
| $sequence_5 | hex | { 488bcf ff15???????? eb10 488bd7 } | |
| $sequence_6 | hex | { 0f1f00 488d0440 488d34c500000000 420fb7442e10 428b542e14 0fb6c8 } | |
| $sequence_7 | hex | { 48894138 41807c241000 0f848d000000 4885c0 0f8484000000 4d8bc4 498bd7 } | |
| $sequence_8 | hex | { 4839542420 7509 33c0 663b442428 745e ff15???????? } | |
| $sequence_9 | hex | { 488b4908 ff15???????? 8bd8 85c0 0f881b010000 4c8d8c24a8020000 41b848020000 } |
Condition
7 of them and filesize < 91136In plain words (Heuristic)
- The file must be smaller than 91136 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
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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: 28cfd257-2962-529a-a32d-592d4dcea4c0
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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