YARA · Malpedia signator rules
MALPEDIA_Win_Trochilus_Rat_Auto
autogenerated rule brought to you by yara-signator
MalwareTrochilus RatMalpedia 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: Trochilus Rat.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-trochilus-rat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Trochilus_Rat_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "2e831772-6c8c-5863-8fd8-e64f28ac5f9b"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.trochilus_rat"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.trochilus_rat_auto.yar#L1-L133"
= "N/A"
= "eaa68b64d4e901ed652b6419a36d2dc071cb93d5ec91aff94878b446c8325eb0"
= 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 = { 83930402010000 33cd 33c0 e8???????? c9 c3 55 }
$sequence_1 = { 3bc1 7f7f 3dc01f0000 7f78 8b4704 8bf0 8d4b2c }
$sequence_2 = { 83be08010100ff 0f8557ffffff 85ff 740b 57 bee81d0110 e8???????? }
$sequence_3 = { 56 ff15???????? 6a02 58 5e 5b c9 }
$sequence_4 = { 0d00e0ffff 40 8d448118 833800 7415 ff7508 8b30 }
$sequence_5 = { ff15???????? 399dd8fbffff 741a ffb5d8fbffff ff15???????? eb0c ff15???????? }
$sequence_6 = { 51 53 56 57 8bf8 8d5f24 53 }
$sequence_7 = { e8???????? 85c0 7524 68???????? 6a02 6871010000 68???????? }
$sequence_8 = { 8b8730020100 894670 8b8734020100 894674 8b8738020100 894678 8b873c020100 }
$sequence_9 = { 8b877c010100 99 bfe8030000 f7ff 66894602 890b }
condition:
7 of them and filesize < 630784
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 83930402010000 33cd 33c0 e8???????? c9 c3 55 } | |
| $sequence_1 | hex | { 3bc1 7f7f 3dc01f0000 7f78 8b4704 8bf0 8d4b2c } | |
| $sequence_2 | hex | { 83be08010100ff 0f8557ffffff 85ff 740b 57 bee81d0110 e8???????? } | |
| $sequence_3 | hex | { 56 ff15???????? 6a02 58 5e 5b c9 } | |
| $sequence_4 | hex | { 0d00e0ffff 40 8d448118 833800 7415 ff7508 8b30 } | |
| $sequence_5 | hex | { ff15???????? 399dd8fbffff 741a ffb5d8fbffff ff15???????? eb0c ff15???????? } | |
| $sequence_6 | hex | { 51 53 56 57 8bf8 8d5f24 53 } | |
| $sequence_7 | hex | { e8???????? 85c0 7524 68???????? 6a02 6871010000 68???????? } | |
| $sequence_8 | hex | { 8b8730020100 894670 8b8734020100 894674 8b8738020100 894678 8b873c020100 } | |
| $sequence_9 | hex | { 8b877c010100 99 bfe8030000 f7ff 66894602 890b } |
Condition
7 of them and filesize < 630784In plain words (Heuristic)
- The file must be smaller than 630784 (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: 2e831772-6c8c-5863-8fd8-e64f28ac5f9b
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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