YARA · CAPE Sandbox (CAPEv2)
CAPE_Mykings
No description has been set in the source file - CAPE
- Author
- YungBinary
- Date
- 2025-10-24
- Modified
- 2025-10-26
- Score / Quality
- 75 / 70
What this rule detects
No description has been set in the source file - CAPE
Targets: Windows PE.
It defines 13 patterns (10 text, 3 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
mykings.yarGNU General Public License v3.0
rule CAPE_Mykings : FILE
{
meta:
= "No description has been set in the source file - CAPE"
= "YungBinary"
= "c9d7b061-b76c-595c-a362-6c89c96093d9"
= "2025-10-24"
= "2025-10-26"
= "https://x.com/YungBinary/status/1981108948498333900"
= "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/data/yara/CAPE/MyKings.yar#L1-L23"
= "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/LICENSE"
= "82647dd23c0247faa045893ec1cf111da2a30528a1b737b59ce1b71172a64473"
= 75
= 70
= "FILE"
= "MyKings Payload"
strings:
$s1 = "login.php?uid=0" wide
$s2 = "download.txt?rnd=" wide
$s3 = "AcceptOK" ascii
$s4 = "winsta0\\default" wide
$s5 = "base64_ip.txt" wide
$s6 = { 70 00 6F 00 77 00 65 00 72 00 74 00 6F 00 6F 00 6C 00 00 00 6B 00 61 00 73 00 70 00 65 00 72 00 73 00 6B 00 79 }
$s7 = { 53 00 61 00 66 00 65 00 00 00 00 00 45 00 73 00 65 00 74 }
$s8 = { 4E 00 6F 00 64 00 33 00 32 00 00 00 4D 00 61 00 6C 00 77 00 61 00 72 00 65 }
$s9 = "Custom C++ HTTP Client/1.0" wide
$s10 = "/ru \"SYSTEM\" /f" ascii
$s11 = "cmd.exe /C timeout /t 1 & del " wide
$s12 = "/login.aspx?uid=0" wide
$s13 = "cmd-230812.ru" base64
condition:
uint16( 0 ) == 0x5a4d and ( 3 of ( $s* ) )
}
Strings (13 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $s1 | text | "login.php?uid=0" | wide |
| $s2 | text | "download.txt?rnd=" | wide |
| $s3 | text | "AcceptOK" | ascii |
| $s4 | text | "winsta0\\default" | wide |
| $s5 | text | "base64_ip.txt" | wide |
| $s6 | hex | { 70 00 6F 00 77 00 65 00 72 00 74 00 6F 00 6F 00 6C 00 00 00 6B 00 61 00 73 00 70 00 65 00 72 00 73 00 6B 00 79 } | |
| $s7 | hex | { 53 00 61 00 66 00 65 00 00 00 00 00 45 00 73 00 65 00 74 } | |
| $s8 | hex | { 4E 00 6F 00 64 00 33 00 32 00 00 00 4D 00 61 00 6C 00 77 00 61 00 72 00 65 } | |
| $s9 | text | "Custom C++ HTTP Client/1.0" | wide |
| $s10 | text | "/ru \"SYSTEM\" /f" | ascii |
| $s11 | text | "cmd.exe /C timeout /t 1 & del " | wide |
| $s12 | text | "/login.aspx?uid=0" | wide |
| $s13 | text | "cmd-230812.ru" | base64 |
Condition
uint16( 0 ) == 0x5a4d and ( 3 of ( $s* ) )In plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- At least 3 patterns in ( $s* ) must match.
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Licence & attribution
Author: YungBinary
Source repository: CAPE Sandbox (CAPEv2) @ 6b15e76f28
Licence: GNU General Public License v3.0 (repository licence)
Copyright notice: Cuckoo Sandbox is copyrighted by the Cuckoo Foundation.
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: c9d7b061-b76c-595c-a362-6c89c96093d9
Metadata
| cape_type | MyKings Payload |
|---|
Tags:FILE
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