YARA · Malpedia signator rules
MALPEDIA_Win_C0D0So0_Auto
autogenerated rule brought to you by yara-signator
MalwareC0D0So0Malpedia 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: C0D0So0.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-c0d0so0-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_C0D0So0_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "4d5f14be-55bb-5899-b6ef-5d7393399909"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.c0d0so0"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.c0d0so0_auto.yar#L1-L123"
= "N/A"
= "0f4e979cbe3d76aff927aa6e7e1b3d6c448a2b5066b0887f652f80cce15e3c72"
= 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 = { 50 ff15???????? 8945fc 8d4df8 83c012 51 }
$sequence_1 = { ffb56cfdffff 8b35???????? 6a00 ffd6 50 }
$sequence_2 = { 8a4902 ebf2 8a4901 ebed 8a4902 }
$sequence_3 = { 50 ff15???????? 85c0 0f8435ffffff eb04 }
$sequence_4 = { 0f8399000000 53 56 57 8d5924 8b13 8bca }
$sequence_5 = { 7503 50 eb44 8d856cfdffff 50 53 ff9568fdffff }
$sequence_6 = { 7511 8d45f0 50 ff75f0 56 ff75f8 }
$sequence_7 = { c3 2b05???????? 56 57 33ff ba???????? 8b32 }
$sequence_8 = { ff9568fdffff 85c0 7531 8bc3 8b8894010000 }
$sequence_9 = { 56 e8???????? eb1d 8a4902 ebf2 8a4901 }
condition:
7 of them and filesize < 450560
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 50 ff15???????? 8945fc 8d4df8 83c012 51 } | |
| $sequence_1 | hex | { ffb56cfdffff 8b35???????? 6a00 ffd6 50 } | |
| $sequence_2 | hex | { 8a4902 ebf2 8a4901 ebed 8a4902 } | |
| $sequence_3 | hex | { 50 ff15???????? 85c0 0f8435ffffff eb04 } | |
| $sequence_4 | hex | { 0f8399000000 53 56 57 8d5924 8b13 8bca } | |
| $sequence_5 | hex | { 7503 50 eb44 8d856cfdffff 50 53 ff9568fdffff } | |
| $sequence_6 | hex | { 7511 8d45f0 50 ff75f0 56 ff75f8 } | |
| $sequence_7 | hex | { c3 2b05???????? 56 57 33ff ba???????? 8b32 } | |
| $sequence_8 | hex | { ff9568fdffff 85c0 7531 8bc3 8b8894010000 } | |
| $sequence_9 | hex | { 56 e8???????? eb1d 8a4902 ebf2 8a4901 } |
Condition
7 of them and filesize < 450560In plain words (Heuristic)
- The file must be smaller than 450560 (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: 4d5f14be-55bb-5899-b6ef-5d7393399909
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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