YARA · Malpedia signator rules
MALPEDIA_Win_Careto_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: Careto.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-careto-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Careto_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "df5d3b26-0b1d-526d-8e38-3fdbee514439"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.careto"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.careto_auto.yar#L1-L120"
= "N/A"
= "6e411afd17e211b09b6684a5fdb23e12a3c1d4b65ab99224fe62b7bee188b4df"
= 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 = { ff55f4 8bf0 83feff 0f849b000000 }
$sequence_1 = { 395d6c 0f84aa000000 56 33f6 395d6c 0f869d000000 53 }
$sequence_2 = { c21400 ff7560 eb01 57 ff15???????? 33c0 ebe6 }
$sequence_3 = { ff75fc ff15???????? 8bf0 85f6 0f84d1010000 53 }
$sequence_4 = { 57 8bf8 d1ff ff05???????? 833d????????03 897df8 750e }
$sequence_5 = { 81ecb8080000 53 8b5d08 68???????? 53 }
$sequence_6 = { 663d0004 0f95c1 49 83e103 03cd }
$sequence_7 = { f3a5 8bca 83e103 f3a4 c68405edfdffff00 }
$sequence_8 = { 7522 83be8c00000001 7506 c70610000000 }
$sequence_9 = { 50 8d856cfdffff 50 ff7570 c7456804010000 895d5c }
condition:
7 of them and filesize < 94208
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { ff55f4 8bf0 83feff 0f849b000000 } | |
| $sequence_1 | hex | { 395d6c 0f84aa000000 56 33f6 395d6c 0f869d000000 53 } | |
| $sequence_2 | hex | { c21400 ff7560 eb01 57 ff15???????? 33c0 ebe6 } | |
| $sequence_3 | hex | { ff75fc ff15???????? 8bf0 85f6 0f84d1010000 53 } | |
| $sequence_4 | hex | { 57 8bf8 d1ff ff05???????? 833d????????03 897df8 750e } | |
| $sequence_5 | hex | { 81ecb8080000 53 8b5d08 68???????? 53 } | |
| $sequence_6 | hex | { 663d0004 0f95c1 49 83e103 03cd } | |
| $sequence_7 | hex | { f3a5 8bca 83e103 f3a4 c68405edfdffff00 } | |
| $sequence_8 | hex | { 7522 83be8c00000001 7506 c70610000000 } | |
| $sequence_9 | hex | { 50 8d856cfdffff 50 ff7570 c7456804010000 895d5c } |
Condition
7 of them and filesize < 94208In plain words (Heuristic)
- The file must be smaller than 94208 (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: df5d3b26-0b1d-526d-8e38-3fdbee514439
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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