YARA · Malpedia signator rules
MALPEDIA_Win_Unidentified_089_Auto
autogenerated rule brought to you by yara-signator
- Author
- Felix Bilstein - yara-signator at cocacoding dot com
- Date
- 2023-07-11
- Modified
- 2023-07-15
- Score / Quality
- 75 / 75
What this rule detects
autogenerated rule brought to you by yara-signator
It defines 8 patterns (0 text, 8 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-unidentified-089-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Unidentified_089_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "f61e4a77-808b-5e07-801b-03e57ce838b5"
= "2023-07-11"
= "2023-07-15"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.unidentified_089"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.unidentified_089_auto.yar#L1-L98"
= "N/A"
= "f9666eb88fbd91e0eb2e4b4c8812230b36d73d66192fed407aecfaa8f0ed362a"
= 75
= 75
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20230705"
= "42d0574f4405bd7d2b154d321d345acb18834a41"
= "20230715"
= "CC BY-SA 4.0"
= "TLP:WHITE"
strings:
$sequence_0 = { 889dd4feffff 899d84feffff 898588feffff 889d74feffff 33c0 }
$sequence_1 = { 8b4508 e8???????? c20c00 e8???????? cc 6a30 }
$sequence_2 = { f2e9e3000000 55 8bec eb0d ff7508 e8???????? }
$sequence_3 = { 83f904 0f8582000000 8b75d0 8bfb }
$sequence_4 = { eb0f ff7634 57 ff562c }
$sequence_5 = { 88041e 880c1f 0fb6041e 8b4dfc 03c2 8b550c }
$sequence_6 = { 3dffffff7f 0f87a2000000 03c0 3d00100000 7227 }
$sequence_7 = { 56 6a01 8d4dec 8975d8 }
condition:
7 of them and filesize < 389120
}
Strings (8 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 889dd4feffff 899d84feffff 898588feffff 889d74feffff 33c0 } | |
| $sequence_1 | hex | { 8b4508 e8???????? c20c00 e8???????? cc 6a30 } | |
| $sequence_2 | hex | { f2e9e3000000 55 8bec eb0d ff7508 e8???????? } | |
| $sequence_3 | hex | { 83f904 0f8582000000 8b75d0 8bfb } | |
| $sequence_4 | hex | { eb0f ff7634 57 ff562c } | |
| $sequence_5 | hex | { 88041e 880c1f 0fb6041e 8b4dfc 03c2 8b550c } | |
| $sequence_6 | hex | { 3dffffff7f 0f87a2000000 03c0 3d00100000 7227 } | |
| $sequence_7 | hex | { 56 6a01 8d4dec 8975d8 } |
Condition
7 of them and filesize < 389120In plain words (Heuristic)
- The file must be smaller than 389120 (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: f61e4a77-808b-5e07-801b-03e57ce838b5
Metadata
| version | 1 |
|---|---|
| tool | yara-signator v0.6.0 |
| signator_config | callsandjumps;datarefs;binvalue |
| malpedia_rule_date | 20230705 |
| malpedia_hash | 42d0574f4405bd7d2b154d321d345acb18834a41 |
| malpedia_version | 20230715 |
| malpedia_license | CC BY-SA 4.0 |
| malpedia_sharing | TLP:WHITE |
Tags:FILE
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