YARA · Malpedia signator rules
MALPEDIA_Win_Phoenix_Locker_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: Phoenix Locker.
It defines 10 patterns (0 text, 10 hex, 0 regex).
YARA-X says: warning[text_as_hex]: hex pattern could be written as text literal
Summary generated from the rule's metadata and condition.
Rule source
rule MALPEDIA_Win_Phoenix_Locker_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "4dfa7ef0-4875-564b-b865-e6f102f3af31"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.phoenix_locker"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.phoenix_locker_auto.yar#L1-L128"
= "N/A"
= "b1d5a233dad93ad87e8e6ab53dd93151b79c7e64341cdca8448cd67b7ab7a537"
= 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 = { 418d4238 fece 66450fb3f8 418d5278 66440fb6c0 c1e903 }
$sequence_1 = { 0f8774000000 0f8530000000 488b542428 480fb7cd 488d4b14 e9???????? ff15???????? }
$sequence_2 = { e9???????? c3 683065706f 9c 48c1a4240800000041 6827366401 }
$sequence_3 = { 41d3c5 488b6c2468 4080d718 80fb82 488b742478 490fbbd5 8bc3 }
$sequence_4 = { 7f52 b760 00504f d1c0 0c86 32fb }
$sequence_5 = { 0855dd 43f6d1 11d7 43b7b1 743d bc15d6512a bc112e45ce }
$sequence_6 = { e9???????? 41ffc6 49ffc4 413aed 4489b424a0000000 4080fc80 664585dd }
$sequence_7 = { 3bc6 e9???????? 0f84e8fdffff 488b5c2430 48d3c7 488b742438 }
$sequence_8 = { e8???????? 4881842418000000aa78f72a 488b7c2428 48c74424281256ce88 68d72a8642 48c1a42400000000ef 689b25ad02 }
$sequence_9 = { 415b 415e 415f 415f 415e }
condition:
7 of them and filesize < 3702784
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 418d4238 fece 66450fb3f8 418d5278 66440fb6c0 c1e903 } | |
| $sequence_1 | hex | { 0f8774000000 0f8530000000 488b542428 480fb7cd 488d4b14 e9???????? ff15???????? } | |
| $sequence_2 | hex | { e9???????? c3 683065706f 9c 48c1a4240800000041 6827366401 } | |
| $sequence_3 | hex | { 41d3c5 488b6c2468 4080d718 80fb82 488b742478 490fbbd5 8bc3 } | |
| $sequence_4 | hex | { 7f52 b760 00504f d1c0 0c86 32fb } | |
| $sequence_5 | hex | { 0855dd 43f6d1 11d7 43b7b1 743d bc15d6512a bc112e45ce } | |
| $sequence_6 | hex | { e9???????? 41ffc6 49ffc4 413aed 4489b424a0000000 4080fc80 664585dd } | |
| $sequence_7 | hex | { 3bc6 e9???????? 0f84e8fdffff 488b5c2430 48d3c7 488b742438 } | |
| $sequence_8 | hex | { e8???????? 4881842418000000aa78f72a 488b7c2428 48c74424281256ce88 68d72a8642 48c1a42400000000ef 689b25ad02 } | |
| $sequence_9 | hex | { 415b 415e 415f 415f 415e } |
Condition
7 of them and filesize < 3702784In plain words (Heuristic)
- The file must be smaller than 3702784 (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.
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: 4dfa7ef0-4875-564b-b865-e6f102f3af31
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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