YARA · Malpedia signator rules
MALPEDIA_Win_Proto8_Rat_Auto
autogenerated rule brought to you by yara-signator
MalwareProto8 RatMalpedia 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: Proto8 Rat.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-proto8-rat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Proto8_Rat_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "53ad6b80-a662-5c00-8508-91dc02f84545"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.proto8_rat"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.proto8_rat_auto.yar#L1-L134"
= "N/A"
= "7c1b0a7b6ecd3ea43bc5cedec06f59d61d50c3231dd17057afc1bc9b44cd3d88"
= 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 = { 84c0 7407 807c245000 743b 32c9 0fb6c1 488b5c2430 }
$sequence_1 = { b8ffffffff eb1a 488b8424a8000000 488901 488b02 4c897008 488b02 }
$sequence_2 = { e8???????? 90 837b3c00 7410 488b4310 488d4b28 ff5048 }
$sequence_3 = { 85c0 745c e8???????? 4c8bc6 488b8e08010000 83f803 7c1a }
$sequence_4 = { e8???????? 90 837de800 750a b901000000 e8???????? 0f2845e0 }
$sequence_5 = { 84c0 0f85d6000000 8bdf 83e301 7434 0fb6442440 4d8bce }
$sequence_6 = { 75a1 4585c9 7454 0f1f8000000000 4183f873 0f8452feffff 418bd0 }
$sequence_7 = { 7513 b8ffffffff 8905???????? 33c0 881d???????? 488b5c2430 488b742438 }
$sequence_8 = { 88442420 488bd3 498bcf e8???????? 84c0 7521 440fb68c2480000000 }
$sequence_9 = { 0f1f00 33c9 410fb6c7 85f6 0f45c8 884c2478 440fb6f9 }
condition:
7 of them and filesize < 2537472
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 84c0 7407 807c245000 743b 32c9 0fb6c1 488b5c2430 } | |
| $sequence_1 | hex | { b8ffffffff eb1a 488b8424a8000000 488901 488b02 4c897008 488b02 } | |
| $sequence_2 | hex | { e8???????? 90 837b3c00 7410 488b4310 488d4b28 ff5048 } | |
| $sequence_3 | hex | { 85c0 745c e8???????? 4c8bc6 488b8e08010000 83f803 7c1a } | |
| $sequence_4 | hex | { e8???????? 90 837de800 750a b901000000 e8???????? 0f2845e0 } | |
| $sequence_5 | hex | { 84c0 0f85d6000000 8bdf 83e301 7434 0fb6442440 4d8bce } | |
| $sequence_6 | hex | { 75a1 4585c9 7454 0f1f8000000000 4183f873 0f8452feffff 418bd0 } | |
| $sequence_7 | hex | { 7513 b8ffffffff 8905???????? 33c0 881d???????? 488b5c2430 488b742438 } | |
| $sequence_8 | hex | { 88442420 488bd3 498bcf e8???????? 84c0 7521 440fb68c2480000000 } | |
| $sequence_9 | hex | { 0f1f00 33c9 410fb6c7 85f6 0f45c8 884c2478 440fb6f9 } |
Condition
7 of them and filesize < 2537472In plain words (Heuristic)
- The file must be smaller than 2537472 (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: 53ad6b80-a662-5c00-8508-91dc02f84545
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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