YARA · Malpedia signator rules
MALPEDIA_Win_Sanny_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: Sanny.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-sanny-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Sanny_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "87344e9f-12e4-542a-9c6d-f79a99e4dcc0"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.sanny"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.sanny_auto.yar#L1-L123"
= "N/A"
= "4364bd4d6d0419a65297d5dfea623a3e99e3c76950ba0b9edaa5327e2a3febf4"
= 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 = { ffd6 a3???????? 8b8b381f0000 68???????? 51 }
$sequence_1 = { 51 e8???????? 8d54241c 8d842438020000 52 50 }
$sequence_2 = { 8bf9 8d8728040000 8a10 8a1e 8aca 3ad3 751e }
$sequence_3 = { 8bf8 83ffff 753f ff15???????? }
$sequence_4 = { 89942480000000 880a 8b942480000000 8b4c2474 4a }
$sequence_5 = { 85c0 7502 32db 8bfe }
$sequence_6 = { 741b c705????????16000000 83c8ff eb7b c705????????0c000000 ebef 890d???????? }
$sequence_7 = { c1e612 33d6 25cccc3333 33d0 8bc1 8bf1 81e1cccc3333 }
$sequence_8 = { ffd0 85c0 0f85d6000000 8d8618c50000 8bce 50 c78610c5000001000000 }
$sequence_9 = { 41 3d???????? 7cf1 56 8bf1 c1e603 3b96b8634100 }
condition:
7 of them and filesize < 253952
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { ffd6 a3???????? 8b8b381f0000 68???????? 51 } | |
| $sequence_1 | hex | { 51 e8???????? 8d54241c 8d842438020000 52 50 } | |
| $sequence_2 | hex | { 8bf9 8d8728040000 8a10 8a1e 8aca 3ad3 751e } | |
| $sequence_3 | hex | { 8bf8 83ffff 753f ff15???????? } | |
| $sequence_4 | hex | { 89942480000000 880a 8b942480000000 8b4c2474 4a } | |
| $sequence_5 | hex | { 85c0 7502 32db 8bfe } | |
| $sequence_6 | hex | { 741b c705????????16000000 83c8ff eb7b c705????????0c000000 ebef 890d???????? } | |
| $sequence_7 | hex | { c1e612 33d6 25cccc3333 33d0 8bc1 8bf1 81e1cccc3333 } | |
| $sequence_8 | hex | { ffd0 85c0 0f85d6000000 8d8618c50000 8bce 50 c78610c5000001000000 } | |
| $sequence_9 | hex | { 41 3d???????? 7cf1 56 8bf1 c1e603 3b96b8634100 } |
Condition
7 of them and filesize < 253952In plain words (Heuristic)
- The file must be smaller than 253952 (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: 87344e9f-12e4-542a-9c6d-f79a99e4dcc0
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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