YARA · Malpedia signator rules
MALPEDIA_Win_Wininetloader_Auto
autogenerated rule brought to you by yara-signator
MalwareWininetloaderMalpedia 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: Wininetloader.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-wininetloader-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Wininetloader_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "a3abc831-3617-5eb4-be31-efdfe45c48fa"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.wininetloader"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.wininetloader_auto.yar#L1-L134"
= "N/A"
= "86fa7c92cd506c06fe8c95af003b4c9146bc66cb0172f256cc2267584d86db42"
= 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 = { 410fb6de ff15???????? 488bc8 8bd3 ff15???????? 488bcf 488b5c2450 }
$sequence_1 = { e8???????? ffc3 83fb0a 0f8ef8feffff 418bde 83f301 8d145d7c230000 }
$sequence_2 = { 4d8bf0 eb0b 4c8d3410 4d3bf0 4d0f42f0 4c89742428 498bd6 }
$sequence_3 = { 771c 4883f901 745b 48ffc9 4883c002 410fb71402 440fb700 }
$sequence_4 = { 4c8b7537 488b751f 0f1000 0f114597 0f104810 0f114da7 4c897810 }
$sequence_5 = { e9???????? 488d0d84870400 e9???????? 488d0da8830400 4881c1a8030000 e9???????? 488d0dad870400 }
$sequence_6 = { 807c243000 741f 48897580 4c8bc3 488bd7 488d8d78010000 e8???????? }
$sequence_7 = { 7479 4c8d5238 33c9 0f1f8000000000 33c0 488d5260 4d8d5260 }
$sequence_8 = { 4c8b642450 8b742434 488b4c2448 807c0c6c20 7512 400fb6f6 84db }
$sequence_9 = { 83e3fb 488d4d98 e8???????? 90 f6c302 740d 83e3fd }
condition:
7 of them and filesize < 2659328
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 410fb6de ff15???????? 488bc8 8bd3 ff15???????? 488bcf 488b5c2450 } | |
| $sequence_1 | hex | { e8???????? ffc3 83fb0a 0f8ef8feffff 418bde 83f301 8d145d7c230000 } | |
| $sequence_2 | hex | { 4d8bf0 eb0b 4c8d3410 4d3bf0 4d0f42f0 4c89742428 498bd6 } | |
| $sequence_3 | hex | { 771c 4883f901 745b 48ffc9 4883c002 410fb71402 440fb700 } | |
| $sequence_4 | hex | { 4c8b7537 488b751f 0f1000 0f114597 0f104810 0f114da7 4c897810 } | |
| $sequence_5 | hex | { e9???????? 488d0d84870400 e9???????? 488d0da8830400 4881c1a8030000 e9???????? 488d0dad870400 } | |
| $sequence_6 | hex | { 807c243000 741f 48897580 4c8bc3 488bd7 488d8d78010000 e8???????? } | |
| $sequence_7 | hex | { 7479 4c8d5238 33c9 0f1f8000000000 33c0 488d5260 4d8d5260 } | |
| $sequence_8 | hex | { 4c8b642450 8b742434 488b4c2448 807c0c6c20 7512 400fb6f6 84db } | |
| $sequence_9 | hex | { 83e3fb 488d4d98 e8???????? 90 f6c302 740d 83e3fd } |
Condition
7 of them and filesize < 2659328In plain words (Heuristic)
- The file must be smaller than 2659328 (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: a3abc831-3617-5eb4-be31-efdfe45c48fa
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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