YARA · Malpedia signator rules
MALPEDIA_Win_Devopt_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: Devopt.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-devopt-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Devopt_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "c196c87a-940f-5170-bdeb-5480f0772987"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.devopt"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.devopt_auto.yar#L1-L134"
= "N/A"
= "d44283c361e67f2f245bfc24e6c20517af3480cb8098b2e4e26bd4743afb76d5"
= 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 = { eb47 8b45fc 0fb6809e030000 50 8b45fc 8a889d030000 8b45fc }
$sequence_1 = { ff15???????? 8b45f4 8d4060 50 6863090000 6a00 6a09 }
$sequence_2 = { eb0f 8b45fc 8b4050 8b55fc 8b4dfc ff514c 89ec }
$sequence_3 = { f77dac 0fb755cc 8d0410 66894588 0fb745c6 0fb755ce 29d0 }
$sequence_4 = { eb36 807dd8b3 7530 0fb645d4 2d80000000 83f824 7322 }
$sequence_5 = { ff526c 8845f0 660fb645f0 66250100 66a9ffff 7502 eb09 }
$sequence_6 = { eb2a 6a00 8d45e8 50 66b90000 66ba0000 66b80000 }
$sequence_7 = { eb46 8b45fc 8b4034 8b55fc 8b4dfc 8b4934 ff91fc000000 }
$sequence_8 = { e8???????? 8d7600 b801000000 89f1 d3e0 8d50ff 21da }
$sequence_9 = { ff75c0 8b4dbc 8b55c4 8d45ec e8???????? 84c0 7509 }
condition:
7 of them and filesize < 4645888
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { eb47 8b45fc 0fb6809e030000 50 8b45fc 8a889d030000 8b45fc } | |
| $sequence_1 | hex | { ff15???????? 8b45f4 8d4060 50 6863090000 6a00 6a09 } | |
| $sequence_2 | hex | { eb0f 8b45fc 8b4050 8b55fc 8b4dfc ff514c 89ec } | |
| $sequence_3 | hex | { f77dac 0fb755cc 8d0410 66894588 0fb745c6 0fb755ce 29d0 } | |
| $sequence_4 | hex | { eb36 807dd8b3 7530 0fb645d4 2d80000000 83f824 7322 } | |
| $sequence_5 | hex | { ff526c 8845f0 660fb645f0 66250100 66a9ffff 7502 eb09 } | |
| $sequence_6 | hex | { eb2a 6a00 8d45e8 50 66b90000 66ba0000 66b80000 } | |
| $sequence_7 | hex | { eb46 8b45fc 8b4034 8b55fc 8b4dfc 8b4934 ff91fc000000 } | |
| $sequence_8 | hex | { e8???????? 8d7600 b801000000 89f1 d3e0 8d50ff 21da } | |
| $sequence_9 | hex | { ff75c0 8b4dbc 8b55c4 8d45ec e8???????? 84c0 7509 } |
Condition
7 of them and filesize < 4645888In plain words (Heuristic)
- The file must be smaller than 4645888 (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: c196c87a-940f-5170-bdeb-5480f0772987
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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