YARA · Malpedia signator rules
MALPEDIA_Win_Usbferry_Auto
autogenerated rule brought to you by yara-signator
MalwareUsbferryMalpedia 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: Usbferry.
It defines 16 patterns (0 text, 16 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-usbferry-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Usbferry_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "7d09bc56-455f-5960-897e-c3b7455498c5"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.usbferry"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.usbferry_auto.yar#L1-L168"
= "N/A"
= "0945567a57779bec5e838aa3a56e2d7838def15ae0fcfa557a1da9b07da9a13a"
= 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 = { 56 ff5134 33c0 40 5b 8b4dfc }
$sequence_1 = { 0f8583000000 8b4518 8945d8 8b4dd8 }
$sequence_2 = { 8bd7 8d8df8fbffff e8???????? eb5b 6800040000 8d8df8f7ffff }
$sequence_3 = { 742c 8b4de0 51 ff15???????? c745c000000000 }
$sequence_4 = { c685b5faffff69 c685b6faffff6d c685b7faffff20 c685b8faffff00 68ef030000 }
$sequence_5 = { 0f570d???????? c645a72d eb14 f6c104 7406 }
$sequence_6 = { 8bec 81ec880a0000 a1???????? 33c5 8945fc 56 57 }
$sequence_7 = { 57 8d45fb c645fb00 50 8bce e8???????? }
$sequence_8 = { c645c069 c645c16e c645c264 c645c36f c645c477 }
$sequence_9 = { 83c40c 6a00 6a2e 8d8da8feffff }
$sequence_10 = { 8a02 8845df 8345d801 807ddf00 75ee 8b4dd8 2b4dc8 }
$sequence_11 = { 838598f5ffff01 80bda1f5ffff00 75e2 8b9598f5ffff 2b9588f5ffff 8b8588f5ffff 89857cf5ffff }
$sequence_12 = { d3e0 844415e0 75d9 8bfe }
$sequence_13 = { 8bc6 f7f3 8bf0 8a043a 88440da4 }
$sequence_14 = { ffb5acfaffff e8???????? 59 59 eb1e }
$sequence_15 = { 83ceff 89542410 8944240c 89742418 80f930 }
condition:
7 of them and filesize < 638976
}
Strings (16 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 56 ff5134 33c0 40 5b 8b4dfc } | |
| $sequence_1 | hex | { 0f8583000000 8b4518 8945d8 8b4dd8 } | |
| $sequence_2 | hex | { 8bd7 8d8df8fbffff e8???????? eb5b 6800040000 8d8df8f7ffff } | |
| $sequence_3 | hex | { 742c 8b4de0 51 ff15???????? c745c000000000 } | |
| $sequence_4 | hex | { c685b5faffff69 c685b6faffff6d c685b7faffff20 c685b8faffff00 68ef030000 } | |
| $sequence_5 | hex | { 0f570d???????? c645a72d eb14 f6c104 7406 } | |
| $sequence_6 | hex | { 8bec 81ec880a0000 a1???????? 33c5 8945fc 56 57 } | |
| $sequence_7 | hex | { 57 8d45fb c645fb00 50 8bce e8???????? } | |
| $sequence_8 | hex | { c645c069 c645c16e c645c264 c645c36f c645c477 } | |
| $sequence_9 | hex | { 83c40c 6a00 6a2e 8d8da8feffff } | |
| $sequence_10 | hex | { 8a02 8845df 8345d801 807ddf00 75ee 8b4dd8 2b4dc8 } | |
| $sequence_11 | hex | { 838598f5ffff01 80bda1f5ffff00 75e2 8b9598f5ffff 2b9588f5ffff 8b8588f5ffff 89857cf5ffff } | |
| $sequence_12 | hex | { d3e0 844415e0 75d9 8bfe } | |
| $sequence_13 | hex | { 8bc6 f7f3 8bf0 8a043a 88440da4 } | |
| $sequence_14 | hex | { ffb5acfaffff e8???????? 59 59 eb1e } | |
| $sequence_15 | hex | { 83ceff 89542410 8944240c 89742418 80f930 } |
Condition
7 of them and filesize < 638976In plain words (Heuristic)
- The file must be smaller than 638976 (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: 7d09bc56-455f-5960-897e-c3b7455498c5
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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