YARA · Malpedia signator rules
MALPEDIA_Win_Ddkeylogger_Auto
autogenerated rule brought to you by yara-signator
MalwareDdkeyloggerMalpedia 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: Ddkeylogger.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-ddkeylogger-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Ddkeylogger_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "b919b02c-00ef-5f37-ad38-3d116fc0ee48"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.ddkeylogger"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.ddkeylogger_auto.yar#L1-L119"
= "N/A"
= "2696cbe1473eb4ace8c92a6d0c6e7fce7cc43e80005bef9a8faf13e2e5b02469"
= 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 = { 8d45cc 50 c745cce0184100 e8???????? }
$sequence_1 = { 56 e8???????? 83c408 c60000 68???????? 68???????? }
$sequence_2 = { ff15???????? 8b85e0faffff 8b08 8b5108 50 ffd2 }
$sequence_3 = { ff15???????? 6800040000 8d8d4cf3ffff 6a00 51 e8???????? 0fb79548efffff }
$sequence_4 = { 8b5804 8d140b 0fb70a 56 8b700c 0fb70c4e 0fb7f1 }
$sequence_5 = { 83c40c 8b55e8 8b45f0 8955dc 8bf9 8945e4 8bde }
$sequence_6 = { f7c200020000 0f95c0 0409 c3 }
$sequence_7 = { 885004 33c0 8d642400 8a8c05f8feffff 888c05e4fcffff }
$sequence_8 = { 7409 f6c208 0f95c0 0403 c3 }
$sequence_9 = { 8d8de5fcffff 6a00 51 8985e0fcffff }
condition:
7 of them and filesize < 808960
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8d45cc 50 c745cce0184100 e8???????? } | |
| $sequence_1 | hex | { 56 e8???????? 83c408 c60000 68???????? 68???????? } | |
| $sequence_2 | hex | { ff15???????? 8b85e0faffff 8b08 8b5108 50 ffd2 } | |
| $sequence_3 | hex | { ff15???????? 6800040000 8d8d4cf3ffff 6a00 51 e8???????? 0fb79548efffff } | |
| $sequence_4 | hex | { 8b5804 8d140b 0fb70a 56 8b700c 0fb70c4e 0fb7f1 } | |
| $sequence_5 | hex | { 83c40c 8b55e8 8b45f0 8955dc 8bf9 8945e4 8bde } | |
| $sequence_6 | hex | { f7c200020000 0f95c0 0409 c3 } | |
| $sequence_7 | hex | { 885004 33c0 8d642400 8a8c05f8feffff 888c05e4fcffff } | |
| $sequence_8 | hex | { 7409 f6c208 0f95c0 0403 c3 } | |
| $sequence_9 | hex | { 8d8de5fcffff 6a00 51 8985e0fcffff } |
Condition
7 of them and filesize < 808960In plain words (Heuristic)
- The file must be smaller than 808960 (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: b919b02c-00ef-5f37-ad38-3d116fc0ee48
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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