YARA · ditekSHen detection
DITEKSHEN_MALWARE_Win_Nanocore
Detects NanoCore
- Author
- ditekSHen
- Date
- 2020-11-06
- Modified
- 2024-11-01
- Score / Quality
- 75 / 75
What this rule detects
Detects NanoCore
Associated malware family: Nanocore.
Targets: Windows PE.
It defines 20 patterns (20 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
malware-win-nanocore.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Nanocore : FILE
{
meta:
= "Detects NanoCore"
= "ditekSHen"
= "931b98f6-df2b-538b-bc49-ecbbd24334da"
= "2020-11-06"
= "2024-11-01"
= "https://github.com/ditekshen/detection"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L7654-L7681"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
= "6336260e0af2b4b51338ee066f41b7c58aa134a6c03ca110db7e088edf2b65a7"
= 75
= 75
= "FILE"
strings:
$x1 = "NanoCore Client" fullword ascii
$x2 = "NanoCore.ClientPlugin" fullword ascii
$x3 = "NanoCore.ClientPluginHost" fullword ascii
$i1 = "IClientApp" fullword ascii
$i2 = "IClientData" fullword ascii
$i3 = "IClientNetwork" fullword ascii
$i4 = "IClientAppHost" fullword ascii
$i5 = "IClientDataHost" fullword ascii
$i6 = "IClientLoggingHost" fullword ascii
$i7 = "IClientNetworkHost" fullword ascii
$i8 = "IClientUIHost" fullword ascii
$i9 = "IClientNameObjectCollection" fullword ascii
$i10 = "IClientReadOnlyNameObjectCollection" fullword ascii
$s1 = "ClientPlugin" fullword ascii
$s2 = "EndPoint" fullword ascii
$s3 = "IPAddress" fullword ascii
$s4 = "IPEndPoint" fullword ascii
$s5 = "IPHostEntr" fullword ascii
$s6 = "get_ClientSettings" fullword ascii
$s7 = "get_Connected" fullword ascii
condition:
uint16( 0 ) == 0x5a4d and ( 2 of ( $x* ) or 8 of ( $i* ) or all of ( $s* ) or ( 1 of ( $x* ) and ( 3 of ( $i* ) or 2 of ( $s* ) ) ) )
}
Strings (20 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $x1 | text | "NanoCore Client" | fullword ascii |
| $x2 | text | "NanoCore.ClientPlugin" | fullword ascii |
| $x3 | text | "NanoCore.ClientPluginHost" | fullword ascii |
| $i1 | text | "IClientApp" | fullword ascii |
| $i2 | text | "IClientData" | fullword ascii |
| $i3 | text | "IClientNetwork" | fullword ascii |
| $i4 | text | "IClientAppHost" | fullword ascii |
| $i5 | text | "IClientDataHost" | fullword ascii |
| $i6 | text | "IClientLoggingHost" | fullword ascii |
| $i7 | text | "IClientNetworkHost" | fullword ascii |
| $i8 | text | "IClientUIHost" | fullword ascii |
| $i9 | text | "IClientNameObjectCollection" | fullword ascii |
| $i10 | text | "IClientReadOnlyNameObjectCollection" | fullword ascii |
| $s1 | text | "ClientPlugin" | fullword ascii |
| $s2 | text | "EndPoint" | fullword ascii |
| $s3 | text | "IPAddress" | fullword ascii |
| $s4 | text | "IPEndPoint" | fullword ascii |
| $s5 | text | "IPHostEntr" | fullword ascii |
| $s6 | text | "get_ClientSettings" | fullword ascii |
| $s7 | text | "get_Connected" | fullword ascii |
Condition
uint16( 0 ) == 0x5a4d and ( 2 of ( $x* ) or 8 of ( $i* ) or all of ( $s* ) or ( 1 of ( $x* ) and ( 3 of ( $i* ) or 2 of ( $s* ) ) ) )In plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- All patterns in ( $s* ) must match.
- At least 2 patterns in ( $x* ) must match.
- At least 8 patterns in ( $i* ) must match.
- At least 1 patterns in ( $x* ) must match.
- At least 3 patterns in ( $i* ) must match.
- At least 2 patterns in ( $s* ) must match.
Test this rule in your browser
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References
Licence & attribution
Author: ditekSHen
Source repository: ditekSHen detection @ e76c93dcde
Licence: BSD 2-Clause License (repository licence)
Copyright notice: Copyright 2021 by ditekSHen (https://github.com/ditekshen/detection).
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: 931b98f6-df2b-538b-bc49-ecbbd24334da
Tags:FILE
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