Implemented basic sleep obfuscation via the Ekko technique using WinAPI. Improvement needed!

src/common/crypto.nim

@@ -7,7 +7,7 @@ import ./[types, utils]
     Symmetric AES256 GCM encryption for secure C2 traffic
     Ensures both confidentiality and integrity of the packet 
 ]#
-proc generateBytes*(T: typedesc[Key | Iv]): array =
+proc generateBytes*(T: typedesc[Key | Iv | Key16]): array =
     var bytes: T
     if randomBytes(bytes) != sizeof(T): 
         raise newException(CatchableError, protect("Failed to generate byte array."))

src/common/types.nim

@@ -8,6 +8,7 @@ const
     MAGIC* = 0x514E3043'u32     # Magic value: C0NQ
     VERSION* = 1'u8             # Version 1
     HEADER_SIZE* = 48'u8        # 48 bytes fixed packet header size
+    STATUS_SUCCESS = 0
 
 type 
     PacketType* = enum 
@@ -79,6 +80,7 @@ type
     Key* = array[32, byte]
     Iv* = array[12, byte]
     AuthenticationTag* = array[16, byte]
+    Key16* = array[16, byte]
 
 # Packet structure
 type 

src/common/utils.nim

@@ -3,7 +3,7 @@ import strutils, nimcrypto
 
 import ./types
 
-proc toString*(T: type Bytes, data: seq[byte]): string =
+proc toString*(T: type Bytes, data: openArray[byte]): string =
     result = newString(data.len)
     for i, b in data:
         result[i] = char(b)