YARA · Malpedia signator rules
MALPEDIA_Win_Sinowal_Auto
autogenerated rule brought to you by yara-signator
MalwareSinowalMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compiles with YARA-X
- Author
- Felix Bilstein - yara-signator at cocacoding dot com
- Date
- 2026-01-05
- Modified
- 2026-01-06
- Score / Quality
- 75 / 75
What this rule detects
autogenerated rule brought to you by yara-signator
Associated malware family: Sinowal.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-sinowal-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Sinowal_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "1f893f7f-89f2-5c9f-9fc2-27e806579cce"
= "2026-01-05"
= "2026-01-06"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.sinowal"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.sinowal_auto.yar#L1-L118"
= "N/A"
= "54091d4d3127abdf4debf8514f31e0539d3fa9d766e80cf864467b06870782b4"
= 75
= 75
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260105"
= "19b79e7cab4eaf532122e5b45a77dd8f6bb5cc79"
= "20251219"
= "CC BY-SA 4.0"
= "TLP:WHITE"
strings:
$sequence_0 = { ff15???????? 85c0 0f85b3000000 837df800 }
$sequence_1 = { c7854cfdffff28000000 83bd4cfdffff03 7305 e9???????? 8b8d4cfdffff }
$sequence_2 = { 8b45fc 83c001 8945fc 8b4d0c d1e9 394dfc }
$sequence_3 = { 33d2 7596 837de800 7417 8b4508 8b08 }
$sequence_4 = { 8995ecfeffff c785c4feffff00000000 c745fc00000000 c745f800000000 c685f0feffff00 68ff000000 6a00 }
$sequence_5 = { 50 e8???????? 83c40c c745fc01000000 c745f804010000 8d4df8 }
$sequence_6 = { 51 ff15???????? 33c0 eb03 83c8ff }
$sequence_7 = { 52 ff15???????? c745f400000000 eb09 8b45f4 }
$sequence_8 = { 7405 e9???????? 6830020000 6a00 }
$sequence_9 = { 8b4dfc 0fb611 33d0 8b45fc 8810 8b4dfc }
condition:
7 of them and filesize < 73728
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { ff15???????? 85c0 0f85b3000000 837df800 } | |
| $sequence_1 | hex | { c7854cfdffff28000000 83bd4cfdffff03 7305 e9???????? 8b8d4cfdffff } | |
| $sequence_2 | hex | { 8b45fc 83c001 8945fc 8b4d0c d1e9 394dfc } | |
| $sequence_3 | hex | { 33d2 7596 837de800 7417 8b4508 8b08 } | |
| $sequence_4 | hex | { 8995ecfeffff c785c4feffff00000000 c745fc00000000 c745f800000000 c685f0feffff00 68ff000000 6a00 } | |
| $sequence_5 | hex | { 50 e8???????? 83c40c c745fc01000000 c745f804010000 8d4df8 } | |
| $sequence_6 | hex | { 51 ff15???????? 33c0 eb03 83c8ff } | |
| $sequence_7 | hex | { 52 ff15???????? c745f400000000 eb09 8b45f4 } | |
| $sequence_8 | hex | { 7405 e9???????? 6830020000 6a00 } | |
| $sequence_9 | hex | { 8b4dfc 0fb611 33d0 8b45fc 8810 8b4dfc } |
Condition
7 of them and filesize < 73728In plain words (Heuristic)
- The file must be smaller than 73728 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
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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: 1f893f7f-89f2-5c9f-9fc2-27e806579cce
Metadata
| version | 1 |
|---|---|
| tool | yara-signator v0.6.0 |
| signator_config | callsandjumps;datarefs;binvalue |
| malpedia_rule_date | 20260105 |
| malpedia_hash | 19b79e7cab4eaf532122e5b45a77dd8f6bb5cc79 |
| malpedia_version | 20251219 |
| malpedia_license | CC BY-SA 4.0 |
| malpedia_sharing | TLP:WHITE |
Tags:FILE
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