YARA · Malpedia signator rules
MALPEDIA_Win_Odinaff_Auto
autogenerated rule brought to you by yara-signator
MalwareOdinaffMalpedia 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: Odinaff.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-odinaff-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Odinaff_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "013682c3-e6bb-5919-97ad-6f041caae471"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.odinaff"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.odinaff_auto.yar#L1-L121"
= "N/A"
= "e27275d11293a489601def324d479cc53d79be6f10f10ea9506cadbab7cb2509"
= 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 = { 3db7000000 7505 33c0 c21000 68???????? 68???????? }
$sequence_1 = { f7de 85c0 7408 50 }
$sequence_2 = { 56 c745983c000000 c745ac00010000 8955c4 c745c800080000 89459c }
$sequence_3 = { 6a00 51 52 50 ff15???????? 8945e8 }
$sequence_4 = { c745fc00010000 ff15???????? 50 ff15???????? 8bf8 8d45fc 50 }
$sequence_5 = { b8???????? e8???????? 8b1d???????? 83c410 f7d8 1bf6 8b45e8 }
$sequence_6 = { 53 56 57 8b3d???????? 6800001000 }
$sequence_7 = { 6a08 33ff 57 57 ff15???????? 8bf0 85f6 }
$sequence_8 = { 7408 48 7555 e8???????? }
$sequence_9 = { ffd3 8b3d???????? 50 ffd7 6808020000 }
condition:
7 of them and filesize < 73728
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 3db7000000 7505 33c0 c21000 68???????? 68???????? } | |
| $sequence_1 | hex | { f7de 85c0 7408 50 } | |
| $sequence_2 | hex | { 56 c745983c000000 c745ac00010000 8955c4 c745c800080000 89459c } | |
| $sequence_3 | hex | { 6a00 51 52 50 ff15???????? 8945e8 } | |
| $sequence_4 | hex | { c745fc00010000 ff15???????? 50 ff15???????? 8bf8 8d45fc 50 } | |
| $sequence_5 | hex | { b8???????? e8???????? 8b1d???????? 83c410 f7d8 1bf6 8b45e8 } | |
| $sequence_6 | hex | { 53 56 57 8b3d???????? 6800001000 } | |
| $sequence_7 | hex | { 6a08 33ff 57 57 ff15???????? 8bf0 85f6 } | |
| $sequence_8 | hex | { 7408 48 7555 e8???????? } | |
| $sequence_9 | hex | { ffd3 8b3d???????? 50 ffd7 6808020000 } |
Condition
7 of them and filesize < 73728In plain words (Heuristic)
- The file must be smaller than 73728 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
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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: 013682c3-e6bb-5919-97ad-6f041caae471
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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