YARA · Malpedia signator rules
MALPEDIA_Win_Funksec_Auto
autogenerated rule brought to you by yara-signator
MalwareFunksecMalpedia 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: Funksec.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-funksec-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Funksec_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "ea8df678-b347-5866-9532-54e6fe25b51e"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.funksec"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.funksec_auto.yar#L1-L134"
= "N/A"
= "295467c18b944fb09944a901e783dbbba9dffb3c056bc94460c476e9b4c73249"
= 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 = { eb32 410fb6411c 450fb64101 410fb65102 410f104103 0f2985c0050000 450fb6511b }
$sequence_1 = { eb3f c6858f00000000 c6858e00000000 4c8d05cf7a2300 4c89f1 e8???????? eb20 }
$sequence_2 = { e9???????? 48c1e808 488b7de8 4939f6 0f8288feffff 4c8d054bf31000 4c89f1 }
$sequence_3 = { f3410f6f4c0d10 660fefd2 660ff8d0 660fdad0 660fefc0 660ff8c1 660fdac1 }
$sequence_4 = { f04c0fb137 0f8428020000 4183fd06 b806000000 410f42c5 b901000000 4585ed }
$sequence_5 = { e8???????? 4889c3 4885c0 7453 0f1005???????? 0f1103 c6431072 }
$sequence_6 = { f3420f6f0433 66440fd7d0 4983c310 4585d2 74e6 f3450fbcd2 4d01f2 }
$sequence_7 = { eb4d 4983c403 c1e10c 09ca 4189d5 4181fd00010000 7338 }
$sequence_8 = { e8???????? c7451000000000 488b5dd0 4c8b65d8 41bd04000000 4c8d7510 488b75e0 }
$sequence_9 = { ff5018 488b45f0 488b8010020000 4885c0 7416 f048ff08 7510 }
condition:
7 of them and filesize < 10986496
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { eb32 410fb6411c 450fb64101 410fb65102 410f104103 0f2985c0050000 450fb6511b } | |
| $sequence_1 | hex | { eb3f c6858f00000000 c6858e00000000 4c8d05cf7a2300 4c89f1 e8???????? eb20 } | |
| $sequence_2 | hex | { e9???????? 48c1e808 488b7de8 4939f6 0f8288feffff 4c8d054bf31000 4c89f1 } | |
| $sequence_3 | hex | { f3410f6f4c0d10 660fefd2 660ff8d0 660fdad0 660fefc0 660ff8c1 660fdac1 } | |
| $sequence_4 | hex | { f04c0fb137 0f8428020000 4183fd06 b806000000 410f42c5 b901000000 4585ed } | |
| $sequence_5 | hex | { e8???????? 4889c3 4885c0 7453 0f1005???????? 0f1103 c6431072 } | |
| $sequence_6 | hex | { f3420f6f0433 66440fd7d0 4983c310 4585d2 74e6 f3450fbcd2 4d01f2 } | |
| $sequence_7 | hex | { eb4d 4983c403 c1e10c 09ca 4189d5 4181fd00010000 7338 } | |
| $sequence_8 | hex | { e8???????? c7451000000000 488b5dd0 4c8b65d8 41bd04000000 4c8d7510 488b75e0 } | |
| $sequence_9 | hex | { ff5018 488b45f0 488b8010020000 4885c0 7416 f048ff08 7510 } |
Condition
7 of them and filesize < 10986496In plain words (Heuristic)
- The file must be smaller than 10986496 (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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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
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: ea8df678-b347-5866-9532-54e6fe25b51e
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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