YARA · Malpedia signator rules
MALPEDIA_Win_Sidewinder_Auto
autogenerated rule brought to you by yara-signator
MalwareSidewinderMalpedia 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: Sidewinder.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-sidewinder-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Sidewinder_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "9e9df07d-bb59-5ce6-ba37-a892c60d7d33"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.sidewinder"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.sidewinder_auto.yar#L1-L133"
= "N/A"
= "ca9735d92e59cc94af52ead8b46d5b078a3580a8819717e09ce10ee8673415d4"
= 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 = { eb04 8365bc00 8d4de0 e8???????? 8d45e0 50 8b4508 }
$sequence_1 = { 8365b400 68???????? 8b45ec 8b00 ff75ec ff506c dbe2 }
$sequence_2 = { 8d4598 50 a1???????? 8b00 ff35???????? ff5064 dbe2 }
$sequence_3 = { 83a5f0feffff00 ff7510 8b8514ffffff 8b00 ffb514ffffff ff5034 dbe2 }
$sequence_4 = { e8???????? 8945b0 eb04 8365b000 837de000 7516 8d45e0 }
$sequence_5 = { 0fbf05???????? 50 ff35???????? e8???????? ff7004 e8???????? 8bd0 }
$sequence_6 = { 8b45e4 8b00 ff75e4 ff501c dbe2 898548ffffff 83bd48ffffff00 }
$sequence_7 = { e8???????? 660fb630 6683e603 666bf610 0f8007010000 ff75dc }
$sequence_8 = { eb0a c78574ffffff1c8c4400 8b8574ffffff 8b00 894594 837de000 7519 }
$sequence_9 = { e8???????? 6a00 6a7f 6a01 6a11 8d45b8 50 }
condition:
7 of them and filesize < 679936
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { eb04 8365bc00 8d4de0 e8???????? 8d45e0 50 8b4508 } | |
| $sequence_1 | hex | { 8365b400 68???????? 8b45ec 8b00 ff75ec ff506c dbe2 } | |
| $sequence_2 | hex | { 8d4598 50 a1???????? 8b00 ff35???????? ff5064 dbe2 } | |
| $sequence_3 | hex | { 83a5f0feffff00 ff7510 8b8514ffffff 8b00 ffb514ffffff ff5034 dbe2 } | |
| $sequence_4 | hex | { e8???????? 8945b0 eb04 8365b000 837de000 7516 8d45e0 } | |
| $sequence_5 | hex | { 0fbf05???????? 50 ff35???????? e8???????? ff7004 e8???????? 8bd0 } | |
| $sequence_6 | hex | { 8b45e4 8b00 ff75e4 ff501c dbe2 898548ffffff 83bd48ffffff00 } | |
| $sequence_7 | hex | { e8???????? 660fb630 6683e603 666bf610 0f8007010000 ff75dc } | |
| $sequence_8 | hex | { eb0a c78574ffffff1c8c4400 8b8574ffffff 8b00 894594 837de000 7519 } | |
| $sequence_9 | hex | { e8???????? 6a00 6a7f 6a01 6a11 8d45b8 50 } |
Condition
7 of them and filesize < 679936In plain words (Heuristic)
- The file must be smaller than 679936 (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: 9e9df07d-bb59-5ce6-ba37-a892c60d7d33
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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