YARA · Malpedia signator rules
MALPEDIA_Win_Unidentified_082_Auto
autogenerated rule brought to you by yara-signator
- Author
- Felix Bilstein - yara-signator at cocacoding dot com
- Date
- 2021-10-07
- Modified
- 2021-10-08
- 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-082-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_082_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "7772581c-e8cf-5615-a758-46ef9c1fc0b0"
= "2021-10-07"
= "2021-10-08"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_082"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_082_auto.yar#L1-L124"
= "N/A"
= "fdfe1ddce9f77ac8b465b0ddebe868c5e77078cf2b2457573a5b3810682f45ee"
= 75
= 75
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20211007"
= "e5b790e0f888f252d49063a1251ca60ec2832535"
= "20211008"
= "CC BY-SA 4.0"
= "TLP:WHITE"
strings:
$sequence_0 = { 4c8d0dbc190200 0f1f4000 0f1f840000000000 418d4801 }
$sequence_1 = { ff5018 4c634510 488d0df40a0200 488bd8 33c0 }
$sequence_2 = { 4c634510 488d0d93fa0100 488bd8 33c0 488bd3 488905???????? 488905???????? }
$sequence_3 = { ff15???????? 488b0cdf ff15???????? 48c704dfffffffff }
$sequence_4 = { 4885c0 0f84ac010000 48833d????????00 0f849e010000 48833d????????00 0f8490010000 48833d????????00 }
$sequence_5 = { 488b0d???????? 8b5108 488b4910 4533c9 458d4130 4c89742420 }
$sequence_6 = { 33c0 e9???????? 8a07 4c8b7c2448 4c8d25a64c0100 4b8b0cfc ffc3 }
$sequence_7 = { 0f1f4000 0f1f840000000000 418d4801 0fb6c2 41ffc0 f7da }
$sequence_8 = { 488b4f18 4c8d4d10 488b01 488d1587000200 41b810000000 ff5018 4c634510 }
$sequence_9 = { 48894598 eb03 4533f6 488b05???????? 80782e00 740a 80782000 }
condition:
7 of them and filesize < 414720
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 4c8d0dbc190200 0f1f4000 0f1f840000000000 418d4801 } | |
| $sequence_1 | hex | { ff5018 4c634510 488d0df40a0200 488bd8 33c0 } | |
| $sequence_2 | hex | { 4c634510 488d0d93fa0100 488bd8 33c0 488bd3 488905???????? 488905???????? } | |
| $sequence_3 | hex | { ff15???????? 488b0cdf ff15???????? 48c704dfffffffff } | |
| $sequence_4 | hex | { 4885c0 0f84ac010000 48833d????????00 0f849e010000 48833d????????00 0f8490010000 48833d????????00 } | |
| $sequence_5 | hex | { 488b0d???????? 8b5108 488b4910 4533c9 458d4130 4c89742420 } | |
| $sequence_6 | hex | { 33c0 e9???????? 8a07 4c8b7c2448 4c8d25a64c0100 4b8b0cfc ffc3 } | |
| $sequence_7 | hex | { 0f1f4000 0f1f840000000000 418d4801 0fb6c2 41ffc0 f7da } | |
| $sequence_8 | hex | { 488b4f18 4c8d4d10 488b01 488d1587000200 41b810000000 ff5018 4c634510 } | |
| $sequence_9 | hex | { 48894598 eb03 4533f6 488b05???????? 80782e00 740a 80782000 } |
Condition
7 of them and filesize < 414720In plain words (Heuristic)
- The file must be smaller than 414720 (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: 7772581c-e8cf-5615-a758-46ef9c1fc0b0
Metadata
| version | 1 |
|---|---|
| tool | yara-signator v0.6.0 |
| signator_config | callsandjumps;datarefs;binvalue |
| malpedia_rule_date | 20211007 |
| malpedia_hash | e5b790e0f888f252d49063a1251ca60ec2832535 |
| malpedia_version | 20211008 |
| malpedia_license | CC BY-SA 4.0 |
| malpedia_sharing | TLP:WHITE |
Tags:FILE
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