YARA · Malpedia signator rules
MALPEDIA_Win_Spyder_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: Spyder.
It defines 16 patterns (0 text, 16 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-spyder-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Spyder_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "49c2f7a4-c2df-5588-ba40-2ef1012f45f0"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.spyder"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.spyder_auto.yar#L1-L172"
= "N/A"
= "1f2f2b8b3552c904a7bda16aac06661c245bdc415e25af6bcbb29062971d99e1"
= 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 = { 33db 48391d???????? 488bf8 0f85d5000000 488d0d935f0000 }
$sequence_1 = { 33c9 ff15???????? 488d0d63880000 ff15???????? 833d????????00 750a b901000000 }
$sequence_2 = { 85c0 755a 488d0d13330000 e8???????? 488d1da7a20000 488d3da8a20000 }
$sequence_3 = { 488905???????? ff15???????? 488bc8 ff15???????? 488d15005f0000 }
$sequence_4 = { 488d15385f0000 488bce 488905???????? ff15???????? }
$sequence_5 = { 4883ec48 488364243000 8364242800 41b803000000 488d0d84340000 }
$sequence_6 = { 4c8d05ca930000 388c2498000000 0f94c1 4803da 4803d9 482bfb }
$sequence_7 = { e8???????? b905000000 4885c0 0f44d9 8bc3 4883c420 }
$sequence_8 = { 6800100000 51 55 ffd6 8b742418 8b4f54 }
$sequence_9 = { c1f905 83e01f 8b0c8d204b0910 8d04c0 8d0481 8b4dfc 8b09 }
$sequence_10 = { ffd3 8b4750 8b4f34 8b35???????? }
$sequence_11 = { bf???????? 8d3452 f3ab c1e604 aa 8d9e903d0910 }
$sequence_12 = { 7372 8bc3 c1f805 8d3c85204b0910 8bc3 }
$sequence_13 = { 83c604 ebed 5e c3 a1???????? 56 6a14 }
$sequence_14 = { e8???????? 83c42c 5f eb26 8d4508 8db6ec3c0910 6a00 }
$sequence_15 = { 0f8794000000 8088014a091004 40 ebee }
condition:
7 of them and filesize < 1458176
}
Strings (16 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 33db 48391d???????? 488bf8 0f85d5000000 488d0d935f0000 } | |
| $sequence_1 | hex | { 33c9 ff15???????? 488d0d63880000 ff15???????? 833d????????00 750a b901000000 } | |
| $sequence_2 | hex | { 85c0 755a 488d0d13330000 e8???????? 488d1da7a20000 488d3da8a20000 } | |
| $sequence_3 | hex | { 488905???????? ff15???????? 488bc8 ff15???????? 488d15005f0000 } | |
| $sequence_4 | hex | { 488d15385f0000 488bce 488905???????? ff15???????? } | |
| $sequence_5 | hex | { 4883ec48 488364243000 8364242800 41b803000000 488d0d84340000 } | |
| $sequence_6 | hex | { 4c8d05ca930000 388c2498000000 0f94c1 4803da 4803d9 482bfb } | |
| $sequence_7 | hex | { e8???????? b905000000 4885c0 0f44d9 8bc3 4883c420 } | |
| $sequence_8 | hex | { 6800100000 51 55 ffd6 8b742418 8b4f54 } | |
| $sequence_9 | hex | { c1f905 83e01f 8b0c8d204b0910 8d04c0 8d0481 8b4dfc 8b09 } | |
| $sequence_10 | hex | { ffd3 8b4750 8b4f34 8b35???????? } | |
| $sequence_11 | hex | { bf???????? 8d3452 f3ab c1e604 aa 8d9e903d0910 } | |
| $sequence_12 | hex | { 7372 8bc3 c1f805 8d3c85204b0910 8bc3 } | |
| $sequence_13 | hex | { 83c604 ebed 5e c3 a1???????? 56 6a14 } | |
| $sequence_14 | hex | { e8???????? 83c42c 5f eb26 8d4508 8db6ec3c0910 6a00 } | |
| $sequence_15 | hex | { 0f8794000000 8088014a091004 40 ebee } |
Condition
7 of them and filesize < 1458176In plain words (Heuristic)
- The file must be smaller than 1458176 (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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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
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: 49c2f7a4-c2df-5588-ba40-2ef1012f45f0
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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