YARA · Malpedia signator rules
MALPEDIA_Win_Solarbot_Auto
autogenerated rule brought to you by yara-signator
MalwareSolarbotMalpedia 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: Solarbot.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-solarbot-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Solarbot_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "105fa4f4-8183-52bf-8123-e9354b485107"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.solarbot"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.solarbot_auto.yar#L1-L127"
= "N/A"
= "fd7305b845e3c66493e1bc450b2017063e86e29be679d0520ec1b532d9af5c7a"
= 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 = { 8b95d4f7ffff 8b85d8f7ffff 01c2 52 e8???????? 8985dcf7ffff 85c0 }
$sequence_1 = { ffd0 8b85f4faffff 83f801 0f859c000000 8b8500fbffff 3d03000080 0f858b000000 }
$sequence_2 = { 85c0 0f8475000000 6a00 ff75f8 ff7508 ff75fc }
$sequence_3 = { 50 e8???????? 6800020000 8d8500feffff 50 53 8b95d8fdffff }
$sequence_4 = { 8b955cfeffff 8910 81fefa000000 72c9 8b8550feffff 0fb710 52 }
$sequence_5 = { 8b45f8 c7401c00000000 8b55f8 8b45f0 }
$sequence_6 = { c745e402000000 c745e811000000 eb15 c745e002000000 c745e401000000 c745e806000000 }
$sequence_7 = { 7521 6a00 6a0c 8d85e8fdffff 50 }
$sequence_8 = { 83ec28 895dd8 8975dc 897de0 8b5d08 8b750c 8b7d10 }
$sequence_9 = { 66c745f00200 8b45f4 85c0 0f86a9020000 b800040000 89c6 56 }
condition:
7 of them and filesize < 204800
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8b95d4f7ffff 8b85d8f7ffff 01c2 52 e8???????? 8985dcf7ffff 85c0 } | |
| $sequence_1 | hex | { ffd0 8b85f4faffff 83f801 0f859c000000 8b8500fbffff 3d03000080 0f858b000000 } | |
| $sequence_2 | hex | { 85c0 0f8475000000 6a00 ff75f8 ff7508 ff75fc } | |
| $sequence_3 | hex | { 50 e8???????? 6800020000 8d8500feffff 50 53 8b95d8fdffff } | |
| $sequence_4 | hex | { 8b955cfeffff 8910 81fefa000000 72c9 8b8550feffff 0fb710 52 } | |
| $sequence_5 | hex | { 8b45f8 c7401c00000000 8b55f8 8b45f0 } | |
| $sequence_6 | hex | { c745e402000000 c745e811000000 eb15 c745e002000000 c745e401000000 c745e806000000 } | |
| $sequence_7 | hex | { 7521 6a00 6a0c 8d85e8fdffff 50 } | |
| $sequence_8 | hex | { 83ec28 895dd8 8975dc 897de0 8b5d08 8b750c 8b7d10 } | |
| $sequence_9 | hex | { 66c745f00200 8b45f4 85c0 0f86a9020000 b800040000 89c6 56 } |
Condition
7 of them and filesize < 204800In plain words (Heuristic)
- The file must be smaller than 204800 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
Test this rule in your browser
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
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: 105fa4f4-8183-52bf-8123-e9354b485107
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
Related rules
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04