YARA · Malpedia signator rules
MALPEDIA_Win_Unidentified_099_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
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-unidentified-099-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_099_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "2a559c81-2ac2-5893-a022-03b84cb58686"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_099"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_099_auto.yar#L1-L112"
= "N/A"
= "5f10c991479f5fb48cd31b8a6a1c9c6b74ad83829903c4aefe61e65e99e65538"
= 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 = { 488bce c744244c40000000 4533c0 33d2 }
$sequence_1 = { 4889442438 4889442440 c74424481c000000 ff15???????? }
$sequence_2 = { 0fb7442440 0f1101 66894110 488d4b26 4885c9 7512 }
$sequence_3 = { baffff1f00 48894c2440 48894c2438 c744243005000000 }
$sequence_4 = { 4d8bc6 ba05000000 ff15???????? 498bce }
$sequence_5 = { 33c0 b95f000000 f3aa 488bfb 488d052feaffff }
$sequence_6 = { ba02000000 660f1f440000 488d8980000000 0f1000 0f104810 }
$sequence_7 = { 4c8b1b 33f6 448bce 6690 428d148d00000000 41ffc1 }
$sequence_8 = { 488d8c2490200000 4533c9 48897c2430 897c2428 ba00000080 c744242003000000 }
$sequence_9 = { 4883c203 880f 488d7f01 4881fa84000000 }
condition:
7 of them and filesize < 314368
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 488bce c744244c40000000 4533c0 33d2 } | |
| $sequence_1 | hex | { 4889442438 4889442440 c74424481c000000 ff15???????? } | |
| $sequence_2 | hex | { 0fb7442440 0f1101 66894110 488d4b26 4885c9 7512 } | |
| $sequence_3 | hex | { baffff1f00 48894c2440 48894c2438 c744243005000000 } | |
| $sequence_4 | hex | { 4d8bc6 ba05000000 ff15???????? 498bce } | |
| $sequence_5 | hex | { 33c0 b95f000000 f3aa 488bfb 488d052feaffff } | |
| $sequence_6 | hex | { ba02000000 660f1f440000 488d8980000000 0f1000 0f104810 } | |
| $sequence_7 | hex | { 4c8b1b 33f6 448bce 6690 428d148d00000000 41ffc1 } | |
| $sequence_8 | hex | { 488d8c2490200000 4533c9 48897c2430 897c2428 ba00000080 c744242003000000 } | |
| $sequence_9 | hex | { 4883c203 880f 488d7f01 4881fa84000000 } |
Condition
7 of them and filesize < 314368In plain words (Heuristic)
- The file must be smaller than 314368 (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: 2a559c81-2ac2-5893-a022-03b84cb58686
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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