YARA · Malpedia signator rules
MALPEDIA_Win_Play_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 / 75
What this rule detects
autogenerated rule brought to you by yara-signator
Associated malware family: Play.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-play-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Play_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "fb8bcd82-2890-51e9-aef7-15cdb7334359"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.play"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.play_auto.yar#L1-L126"
= "N/A"
= "98ed430384a69d155a8a3b8add1f6db92e55c318ad1d4defbfbdd225c9837ee9"
= 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 = { 85c9 7ff1 eb1d 8d85b1feffff 03c1 50 }
$sequence_1 = { 0f1005???????? 8945ac b854040000 6689856cffffff b8e0690000 0f114588 052496ffff }
$sequence_2 = { 898518feffff b879180000 0f118594feffff 898534ffffff f30f7e05???????? a1???????? 660fd68500ffffff }
$sequence_3 = { 02c0 02c2 888596feffff b9???????? e8???????? 8a85acfeffff }
$sequence_4 = { 8a857cfcffff fec0 c745e43d000000 0245fd 8845ff 888521ffffff b83e000000 }
$sequence_5 = { bbb410624c 8b0d???????? e8???????? 6aff ff75e8 ffd0 }
$sequence_6 = { e8???????? 33d2 8b4df4 f7f6 8bc2 8945e4 }
$sequence_7 = { 8955f8 894dfc e8???????? 8b0d???????? 33d2 }
$sequence_8 = { 889591feffff 888dc9feffff 888d81feffff b920000000 c60000 }
$sequence_9 = { e8???????? 2467 0fa1 ee d5d8 e9???????? 8c9f381b40b1 }
condition:
7 of them and filesize < 389120
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 85c9 7ff1 eb1d 8d85b1feffff 03c1 50 } | |
| $sequence_1 | hex | { 0f1005???????? 8945ac b854040000 6689856cffffff b8e0690000 0f114588 052496ffff } | |
| $sequence_2 | hex | { 898518feffff b879180000 0f118594feffff 898534ffffff f30f7e05???????? a1???????? 660fd68500ffffff } | |
| $sequence_3 | hex | { 02c0 02c2 888596feffff b9???????? e8???????? 8a85acfeffff } | |
| $sequence_4 | hex | { 8a857cfcffff fec0 c745e43d000000 0245fd 8845ff 888521ffffff b83e000000 } | |
| $sequence_5 | hex | { bbb410624c 8b0d???????? e8???????? 6aff ff75e8 ffd0 } | |
| $sequence_6 | hex | { e8???????? 33d2 8b4df4 f7f6 8bc2 8945e4 } | |
| $sequence_7 | hex | { 8955f8 894dfc e8???????? 8b0d???????? 33d2 } | |
| $sequence_8 | hex | { 889591feffff 888dc9feffff 888d81feffff b920000000 c60000 } | |
| $sequence_9 | hex | { e8???????? 2467 0fa1 ee d5d8 e9???????? 8c9f381b40b1 } |
Condition
7 of them and filesize < 389120In plain words (Heuristic)
- The file must be smaller than 389120 (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: fb8bcd82-2890-51e9-aef7-15cdb7334359
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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