YARA · Malpedia signator rules
MALPEDIA_Win_Logtu_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: Logtu.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-logtu-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Logtu_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "dc6e5ba7-10fb-5dc5-b57b-8f1a97da4dc4"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.logtu"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.logtu_auto.yar#L1-L116"
= "N/A"
= "19aa01b3ced6bb4c284af458418953eab621cc66b4afe06f91e20fcfd95f3d25"
= 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 8d8584faffff 50 8d8574faffff 50 8d8534ffffff }
$sequence_1 = { 6a64 6a00 ff15???????? 85c0 7509 }
$sequence_2 = { 8d8584faffff 50 8d8574faffff 50 8d8534ffffff }
$sequence_3 = { ff15???????? 6a64 ff15???????? 66a1???????? }
$sequence_4 = { 50 ff15???????? 6a01 8bf0 8d85a4fdffff 68???????? 50 }
$sequence_5 = { 50 8d8578faffff 50 8d8584faffff 50 8d8574faffff 50 }
$sequence_6 = { 50 8d8584faffff 50 8d8574faffff }
$sequence_7 = { 50 8d85fcf7ffff 68???????? 50 e8???????? 8d85fcf7ffff }
$sequence_8 = { 47 3b7d08 7cd1 5f }
$sequence_9 = { 0fb64605 50 68???????? 8d85a4fdffff }
condition:
7 of them and filesize < 924672
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 50 8d8584faffff 50 8d8574faffff 50 8d8534ffffff } | |
| $sequence_1 | hex | { 6a64 6a00 ff15???????? 85c0 7509 } | |
| $sequence_2 | hex | { 8d8584faffff 50 8d8574faffff 50 8d8534ffffff } | |
| $sequence_3 | hex | { ff15???????? 6a64 ff15???????? 66a1???????? } | |
| $sequence_4 | hex | { 50 ff15???????? 6a01 8bf0 8d85a4fdffff 68???????? 50 } | |
| $sequence_5 | hex | { 50 8d8578faffff 50 8d8584faffff 50 8d8574faffff 50 } | |
| $sequence_6 | hex | { 50 8d8584faffff 50 8d8574faffff } | |
| $sequence_7 | hex | { 50 8d85fcf7ffff 68???????? 50 e8???????? 8d85fcf7ffff } | |
| $sequence_8 | hex | { 47 3b7d08 7cd1 5f } | |
| $sequence_9 | hex | { 0fb64605 50 68???????? 8d85a4fdffff } |
Condition
7 of them and filesize < 924672In plain words (Heuristic)
- The file must be smaller than 924672 (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: dc6e5ba7-10fb-5dc5-b57b-8f1a97da4dc4
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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