YARA · Malpedia signator rules
MALPEDIA_Win_Dramnudge_Auto
autogenerated rule brought to you by yara-signator
MalwareDramnudgeMalpedia 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: Dramnudge.
It defines 8 patterns (0 text, 8 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-dramnudge-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Dramnudge_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "4e1e9905-62de-5567-9ed7-a82928870a8c"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.dramnudge"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.dramnudge_auto.yar#L1-L90"
= "N/A"
= "221dd8bcd930b6121a924fbe6761de15c83c657ddce0c9178183beb8828f75f7"
= 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 = { 014218 eb18 03c3 8bd3 }
$sequence_1 = { 000c00 20b140005f5f 7277 7374 }
$sequence_2 = { 014318 8b430c 2b4308 03c6 }
$sequence_3 = { 000c00 e0d9 40 007374 }
$sequence_4 = { 014318 8b4318 8b55f8 03d6 }
$sequence_5 = { 007374 643a3a 7275 6e }
$sequence_6 = { 0000 90 000c00 20b140005f5f }
$sequence_7 = { 014318 eb5b 33f6 eb01 }
condition:
7 of them and filesize < 1294336
}
Strings (8 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 014218 eb18 03c3 8bd3 } | |
| $sequence_1 | hex | { 000c00 20b140005f5f 7277 7374 } | |
| $sequence_2 | hex | { 014318 8b430c 2b4308 03c6 } | |
| $sequence_3 | hex | { 000c00 e0d9 40 007374 } | |
| $sequence_4 | hex | { 014318 8b4318 8b55f8 03d6 } | |
| $sequence_5 | hex | { 007374 643a3a 7275 6e } | |
| $sequence_6 | hex | { 0000 90 000c00 20b140005f5f } | |
| $sequence_7 | hex | { 014318 eb5b 33f6 eb01 } |
Condition
7 of them and filesize < 1294336In plain words (Heuristic)
- The file must be smaller than 1294336 (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: 4e1e9905-62de-5567-9ed7-a82928870a8c
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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