YARA · Malpedia signator rules
MALPEDIA_Win_Furtim_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: Furtim.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-furtim-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Furtim_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "997496b4-68e2-55bd-9790-724c9dca1765"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.furtim"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.furtim_auto.yar#L1-L129"
= "N/A"
= "021866744ccba840eb17e7885794bb12bfcecfd8614d8904503788a79f60e019"
= 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 = { 5b 5e 83c578 c9 c3 8bff 56 }
$sequence_1 = { 8bce 84c0 74e7 bf???????? eb0d 6a64 5a }
$sequence_2 = { 52 8d45f4 8bf1 50 ff963c050000 8b4508 }
$sequence_3 = { 895dfc ff960c030000 85c0 740f }
$sequence_4 = { 5b c3 56 8bf1 57 b9feff0000 ff96b8020000 }
$sequence_5 = { 57 c786500600006ec74000 c7862404000020db4000 c7869c03000068434000 c78698030000aa314000 c7863806000088c54000 c786c80500000c8d4000 }
$sequence_6 = { ba???????? 8bce ff9664060000 68???????? ff9688050000 8bf8 }
$sequence_7 = { 817dfce8030000 0f8f8c000000 8b5df8 83c310 68???????? 53 ff96c8040000 }
$sequence_8 = { ffd0 85c0 7467 397df8 7462 ff75fc ff96bc040000 }
$sequence_9 = { 83e6f8 33c9 8b3c8a 83e7f8 3bfe 740b 41 }
condition:
7 of them and filesize < 622592
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 5b 5e 83c578 c9 c3 8bff 56 } | |
| $sequence_1 | hex | { 8bce 84c0 74e7 bf???????? eb0d 6a64 5a } | |
| $sequence_2 | hex | { 52 8d45f4 8bf1 50 ff963c050000 8b4508 } | |
| $sequence_3 | hex | { 895dfc ff960c030000 85c0 740f } | |
| $sequence_4 | hex | { 5b c3 56 8bf1 57 b9feff0000 ff96b8020000 } | |
| $sequence_5 | hex | { 57 c786500600006ec74000 c7862404000020db4000 c7869c03000068434000 c78698030000aa314000 c7863806000088c54000 c786c80500000c8d4000 } | |
| $sequence_6 | hex | { ba???????? 8bce ff9664060000 68???????? ff9688050000 8bf8 } | |
| $sequence_7 | hex | { 817dfce8030000 0f8f8c000000 8b5df8 83c310 68???????? 53 ff96c8040000 } | |
| $sequence_8 | hex | { ffd0 85c0 7467 397df8 7462 ff75fc ff96bc040000 } | |
| $sequence_9 | hex | { 83e6f8 33c9 8b3c8a 83e7f8 3bfe 740b 41 } |
Condition
7 of them and filesize < 622592In plain words (Heuristic)
- The file must be smaller than 622592 (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: 997496b4-68e2-55bd-9790-724c9dca1765
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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