YARA · Malpedia signator rules
MALPEDIA_Win_Dratzarus_Auto
autogenerated rule brought to you by yara-signator
MalwareDratzarusMalpedia 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: Dratzarus.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-dratzarus-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Dratzarus_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "b05b6cf3-df9c-5822-94de-c2d1dd169a66"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.dratzarus"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.dratzarus_auto.yar#L1-L126"
= "N/A"
= "28b394085017763658cb32f571c0bc3ead50b44836e5d19cbb1fb8a91890baf5"
= 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 = { 33d2 33c9 4889442420 48895c2448 c744244001000000 }
$sequence_1 = { c6453c5b e8???????? 488bc8 ff15???????? 488bd8 4885c0 7511 }
$sequence_2 = { c785380400004e70775d c7853c04000063706229 c745b002332420 c745b435240728 c745b82d240041 c74424607a2ed60d }
$sequence_3 = { 6689440afe 6685c0 75ef 33c0 4883c9ff 488dbc2480060000 }
$sequence_4 = { 4883c430 5f 5e 5b c3 488b4c2468 41b902000000 }
$sequence_5 = { bf01000000 488bcb ff15???????? 8bc7 488b8c2460020000 4833cc e8???????? }
$sequence_6 = { c785f0000000fd77f4c4 c785f4000000ba55a70a c785f8000000d01a40b1 66c785fc00000064ca c685fe000000e4 }
$sequence_7 = { e8???????? 488bcb 488bd0 ff15???????? 488d8d58020000 ba13000000 488905???????? }
$sequence_8 = { 89842454020000 e8???????? b902000000 8d5701 4533c0 }
$sequence_9 = { 488d4de0 ba16000000 e8???????? 488bcb 488bd0 ff15???????? 488b5c2460 }
condition:
7 of them and filesize < 1606656
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 33d2 33c9 4889442420 48895c2448 c744244001000000 } | |
| $sequence_1 | hex | { c6453c5b e8???????? 488bc8 ff15???????? 488bd8 4885c0 7511 } | |
| $sequence_2 | hex | { c785380400004e70775d c7853c04000063706229 c745b002332420 c745b435240728 c745b82d240041 c74424607a2ed60d } | |
| $sequence_3 | hex | { 6689440afe 6685c0 75ef 33c0 4883c9ff 488dbc2480060000 } | |
| $sequence_4 | hex | { 4883c430 5f 5e 5b c3 488b4c2468 41b902000000 } | |
| $sequence_5 | hex | { bf01000000 488bcb ff15???????? 8bc7 488b8c2460020000 4833cc e8???????? } | |
| $sequence_6 | hex | { c785f0000000fd77f4c4 c785f4000000ba55a70a c785f8000000d01a40b1 66c785fc00000064ca c685fe000000e4 } | |
| $sequence_7 | hex | { e8???????? 488bcb 488bd0 ff15???????? 488d8d58020000 ba13000000 488905???????? } | |
| $sequence_8 | hex | { 89842454020000 e8???????? b902000000 8d5701 4533c0 } | |
| $sequence_9 | hex | { 488d4de0 ba16000000 e8???????? 488bcb 488bd0 ff15???????? 488b5c2460 } |
Condition
7 of them and filesize < 1606656In plain words (Heuristic)
- The file must be smaller than 1606656 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
Test this rule in your browser
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
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: b05b6cf3-df9c-5822-94de-c2d1dd169a66
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
Related rules
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04