YARA · Malpedia signator rules
MALPEDIA_Win_Linseningsvr_Auto
autogenerated rule brought to you by yara-signator
MalwareLinseningsvrMalpedia 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: Linseningsvr.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-linseningsvr-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Linseningsvr_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "9dcd591f-d0ec-5190-8dad-c6b3b9eab825"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.linseningsvr"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.linseningsvr_auto.yar#L1-L124"
= "N/A"
= "0cfff1e97d9fd891165604e0b9cd757922199a1abb3f822338fa50a684f756d6"
= 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 = { 8d34b558874000 832600 83c60c 4a 75f7 8b00 8b35???????? }
$sequence_1 = { 47 3bfe 7ce7 68???????? e8???????? 8b15???????? b900010000 }
$sequence_2 = { 83f908 7229 f3a5 ff2495982c4000 8bc7 ba03000000 }
$sequence_3 = { e8???????? b900010000 33c0 8dbc2450040000 55 }
$sequence_4 = { 8d3c8dc08d4000 c1e603 8b0f f644310401 7456 50 e8???????? }
$sequence_5 = { 7c13 80fb78 7f0e 0fbec3 8a801c714000 }
$sequence_6 = { 52 56 66895c2448 6689442456 ff15???????? 8bd8 }
$sequence_7 = { 8944241c 33ff 8bc8 83f940 5d }
$sequence_8 = { 8088818c400008 40 3dff000000 72f1 56 }
$sequence_9 = { 8ac8 80c120 8888808b4000 eb1f 83f861 7213 83f87a }
condition:
7 of them and filesize < 81360
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8d34b558874000 832600 83c60c 4a 75f7 8b00 8b35???????? } | |
| $sequence_1 | hex | { 47 3bfe 7ce7 68???????? e8???????? 8b15???????? b900010000 } | |
| $sequence_2 | hex | { 83f908 7229 f3a5 ff2495982c4000 8bc7 ba03000000 } | |
| $sequence_3 | hex | { e8???????? b900010000 33c0 8dbc2450040000 55 } | |
| $sequence_4 | hex | { 8d3c8dc08d4000 c1e603 8b0f f644310401 7456 50 e8???????? } | |
| $sequence_5 | hex | { 7c13 80fb78 7f0e 0fbec3 8a801c714000 } | |
| $sequence_6 | hex | { 52 56 66895c2448 6689442456 ff15???????? 8bd8 } | |
| $sequence_7 | hex | { 8944241c 33ff 8bc8 83f940 5d } | |
| $sequence_8 | hex | { 8088818c400008 40 3dff000000 72f1 56 } | |
| $sequence_9 | hex | { 8ac8 80c120 8888808b4000 eb1f 83f861 7213 83f87a } |
Condition
7 of them and filesize < 81360In plain words (Heuristic)
- The file must be smaller than 81360 (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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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: 9dcd591f-d0ec-5190-8dad-c6b3b9eab825
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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