YARA · Malpedia signator rules
MALPEDIA_Win_Neddnloader_Auto
autogenerated rule brought to you by yara-signator
MalwareNeddnloaderMalpedia 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: Neddnloader.
It defines 16 patterns (0 text, 16 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-neddnloader-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Neddnloader_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "6207542e-4fa7-556c-9586-03bf1612adfb"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.neddnloader"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.neddnloader_auto.yar#L1-L169"
= "N/A"
= "e340f7178c887aaf79b928e388602b49d7327ca73149e06abdddfe4d4128d099"
= 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 = { e8???????? 2b5d10 83c40c 03df }
$sequence_1 = { 8bec 83e4f8 81ec10060000 a1???????? 33c4 }
$sequence_2 = { 8b450c 8908 ff15???????? 8bc7 }
$sequence_3 = { 0fb702 0fb731 663bc6 7506 83c102 83c202 3bcb }
$sequence_4 = { 3bcf 72f0 8d43ff 3bc8 7311 0fb702 0fb731 }
$sequence_5 = { ff15???????? 8b4df8 56 3bc8 }
$sequence_6 = { 8b03 8b5508 69c0b179379e c1e813 }
$sequence_7 = { 41 8bc1 2b45fc 5f 5e }
$sequence_8 = { 498bf8 488bea 4c8be1 85c0 7e57 448d68ff 488bf2 }
$sequence_9 = { 488bce e8???????? 3bc7 7554 }
$sequence_10 = { 4881ecc0080000 488b05???????? 4833c4 488985b0070000 488bf1 }
$sequence_11 = { 488905???????? ff15???????? 488bc8 ff15???????? 488d1510410000 488bce 488905???????? }
$sequence_12 = { 0f8c05010000 837c244c00 4c8b642450 0f84c5000000 488364242000 488d0599ee0000 }
$sequence_13 = { 894ff8 e8???????? eb49 8b4704 0307 }
$sequence_14 = { ba00010000 4889442420 e8???????? 4c8d45f0 ba00010000 488bcf }
$sequence_15 = { 418b848c80510100 4189849c90b00100 418b848c80550100 4189849c90ac0100 418b848c80590100 4189849c90b80100 4903dd }
condition:
7 of them and filesize < 3438592
}
Strings (16 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { e8???????? 2b5d10 83c40c 03df } | |
| $sequence_1 | hex | { 8bec 83e4f8 81ec10060000 a1???????? 33c4 } | |
| $sequence_2 | hex | { 8b450c 8908 ff15???????? 8bc7 } | |
| $sequence_3 | hex | { 0fb702 0fb731 663bc6 7506 83c102 83c202 3bcb } | |
| $sequence_4 | hex | { 3bcf 72f0 8d43ff 3bc8 7311 0fb702 0fb731 } | |
| $sequence_5 | hex | { ff15???????? 8b4df8 56 3bc8 } | |
| $sequence_6 | hex | { 8b03 8b5508 69c0b179379e c1e813 } | |
| $sequence_7 | hex | { 41 8bc1 2b45fc 5f 5e } | |
| $sequence_8 | hex | { 498bf8 488bea 4c8be1 85c0 7e57 448d68ff 488bf2 } | |
| $sequence_9 | hex | { 488bce e8???????? 3bc7 7554 } | |
| $sequence_10 | hex | { 4881ecc0080000 488b05???????? 4833c4 488985b0070000 488bf1 } | |
| $sequence_11 | hex | { 488905???????? ff15???????? 488bc8 ff15???????? 488d1510410000 488bce 488905???????? } | |
| $sequence_12 | hex | { 0f8c05010000 837c244c00 4c8b642450 0f84c5000000 488364242000 488d0599ee0000 } | |
| $sequence_13 | hex | { 894ff8 e8???????? eb49 8b4704 0307 } | |
| $sequence_14 | hex | { ba00010000 4889442420 e8???????? 4c8d45f0 ba00010000 488bcf } | |
| $sequence_15 | hex | { 418b848c80510100 4189849c90b00100 418b848c80550100 4189849c90ac0100 418b848c80590100 4189849c90b80100 4903dd } |
Condition
7 of them and filesize < 3438592In plain words (Heuristic)
- The file must be smaller than 3438592 (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: 6207542e-4fa7-556c-9586-03bf1612adfb
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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