YARA · Malpedia signator rules
MALPEDIA_Win_Dlrat_Auto
autogenerated rule brought to you by yara-signator
- 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: Dlrat.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-dlrat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Dlrat_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "7bb91210-a1a6-58a8-9c5b-ff8edf88b110"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.dlrat"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.dlrat_auto.yar#L1-L134"
= "N/A"
= "a3f1e1206cd1c309e34cacc09c3103fc944a2e61c558b93390de2cb1efae2fc5"
= 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 = { 488d0de60b1600 e8???????? 488975b0 4989d9 4531c0 baaa020000 488d0dcb0b1600 }
$sequence_1 = { 488d1df28e0500 48895dc8 48c745c011000000 488d55c0 488d0dcb8e0500 48894dd8 48c745d009000000 }
$sequence_2 = { e8???????? 85c0 7818 3de4000000 7311 4898 488d0d723b0100 }
$sequence_3 = { e8???????? 83fb01 7754 488d05aa270b00 488945a8 48c745a000000000 488d55a0 }
$sequence_4 = { 48ffc0 482bd8 48899df0fcffff 488b9de8fcffff 4803d8 48899df8fcffff 488d0513701600 }
$sequence_5 = { 488b8d20ffffff 4883ec20 e8???????? 4883c420 4889c2 488d0de71f1800 4883ec20 }
$sequence_6 = { 41c64424076c 41c644240863 41c644240979 41c644240a39 41c644240b6f 41c644240c5a 41c644240d57 }
$sequence_7 = { 488b03 488985a0fcffff 488995a8fcffff 488b3d???????? 488b97b0000000 488b87a8000000 488985b0fcffff }
$sequence_8 = { e8???????? 48c745b000000000 4c8bce 4c8bc3 ba2f070000 488d0d5e411500 e8???????? }
$sequence_9 = { ffc1 e8???????? 48894580 48895588 488d4580 48898520ffffff 488d1d6a691000 }
condition:
7 of them and filesize < 4121600
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 488d0de60b1600 e8???????? 488975b0 4989d9 4531c0 baaa020000 488d0dcb0b1600 } | |
| $sequence_1 | hex | { 488d1df28e0500 48895dc8 48c745c011000000 488d55c0 488d0dcb8e0500 48894dd8 48c745d009000000 } | |
| $sequence_2 | hex | { e8???????? 85c0 7818 3de4000000 7311 4898 488d0d723b0100 } | |
| $sequence_3 | hex | { e8???????? 83fb01 7754 488d05aa270b00 488945a8 48c745a000000000 488d55a0 } | |
| $sequence_4 | hex | { 48ffc0 482bd8 48899df0fcffff 488b9de8fcffff 4803d8 48899df8fcffff 488d0513701600 } | |
| $sequence_5 | hex | { 488b8d20ffffff 4883ec20 e8???????? 4883c420 4889c2 488d0de71f1800 4883ec20 } | |
| $sequence_6 | hex | { 41c64424076c 41c644240863 41c644240979 41c644240a39 41c644240b6f 41c644240c5a 41c644240d57 } | |
| $sequence_7 | hex | { 488b03 488985a0fcffff 488995a8fcffff 488b3d???????? 488b97b0000000 488b87a8000000 488985b0fcffff } | |
| $sequence_8 | hex | { e8???????? 48c745b000000000 4c8bce 4c8bc3 ba2f070000 488d0d5e411500 e8???????? } | |
| $sequence_9 | hex | { ffc1 e8???????? 48894580 48895588 488d4580 48898520ffffff 488d1d6a691000 } |
Condition
7 of them and filesize < 4121600In plain words (Heuristic)
- The file must be smaller than 4121600 (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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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
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: 7bb91210-a1a6-58a8-9c5b-ff8edf88b110
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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