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https://github.com/Ed1s0nZ/CyberStrikeAI.git
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@@ -0,0 +1,25 @@
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package c2
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import (
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"encoding/base64"
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"encoding/binary"
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)
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// b64StdEncode 用标准 base64 编码字节
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func b64StdEncode(s string) string {
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return base64.StdEncoding.EncodeToString([]byte(s))
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}
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// utf16LEBase64 把字符串转 UTF-16LE 后再 base64,用于 PowerShell -EncodedCommand
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// (Windows PowerShell 接受这种格式,避免命令行特殊字符引起转义错误)
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func utf16LEBase64(s string) string {
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runes := []rune(s)
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buf := make([]byte, 0, len(runes)*2)
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for _, r := range runes {
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// 注意:>0xFFFF 的字符需要代理对,但 PowerShell 命令通常都在 BMP 内
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var enc [2]byte
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binary.LittleEndian.PutUint16(enc[:], uint16(r))
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buf = append(buf, enc[:]...)
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}
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return base64.StdEncoding.EncodeToString(buf)
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}
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