圖片隱寫

• 方式1:gif幀分解
• 方式2:exif隱藏信息
• 方式3:LSB在最低位隱藏信息
• 方式4:圖片改變參數（寬高）隱藏信息
• 方式5:圖片的倒序存儲
• 方式6:文件追加
• 方式7:Data URL

1-4，這些用010 Editor與Stegsolve都能輕松解決

1.Stegsolve的frame browser逐幀查看 2.右鍵圖片屬性->詳細信息，或者010打開查看 3.Stegsolve查看不同位不同元素(如R\G\B)的圖像，把最低位圖像有顯著改動特征的取出，轉化為0x進制數據繼續分析 4.在圖片的屬性中找到寬高，把過小的調大，也許能發現隱藏部分

5-7，需要引申一些知識以及kali的運用

5.需要記下一些文件頭以便快速反應是什么文件的逆序，當然也可以寫個腳本直接判斷。在判斷后應當使用腳本將文件倒序變成所求文件 JPEG (jpg)，文件頭：FFD8FF PNG (png)，文件頭：89504E47 GIF (gif)，文件頭：47494638 TIFF (tif)，文件頭：49492A00 Windows Bitmap (bmp)，文件頭：424D CAD (dwg)，文件頭：41433130 Adobe Photoshop (psd)，文件頭：38425053 Rich Text Format (rtf)，文件頭：7B5C727466 XML (xml)，文件頭：3C3F786D6C HTML (html)，文件頭：68746D6C3E Email [thorough only] (eml)，文件頭：44656C69766572792D646174653A Outlook Express (dbx)，文件頭：CFAD12FEC5FD746F Outlook (pst)，文件頭：2142444E MS Word/Excel (xls.or.doc)，文件頭：D0CF11E0 MS Access (mdb)，文件頭：5374616E64617264204A WordPerfect (wpd)，文件頭：FF575043 Adobe Acrobat (pdf)，文件頭：255044462D312E Quicken (qdf)，文件頭：AC9EBD8F Windows Password (pwl)，文件頭：E3828596 ZIP Archive (zip)，文件頭：504B0304 RAR Archive (rar)，文件頭：52617221 Wave (wav)，文件頭：57415645 AVI (avi)，文件頭：41564920 Real Audio (ram)，文件頭：2E7261FD Real Media (rm)，文件頭：2E524D46 MPEG (mpg)，文件頭：000001BA MPEG (mpg)，文件頭：000001B3 Quicktime (mov)，文件頭：6D6F6F76 Windows Media (asf)，文件頭：3026B2758E66CF11 MIDI (mid)，文件頭：4D546864 6.文件追加在表文件末尾可以直接用010 Editor看出 但是其他情況就要用kali的binwalk分析是否有隱藏文件，以及用formost提取文件 語法舉例：`binwalk example.jpg` `formost example.jpg` 7.data URL由四部分組成： 關于data url的利弊參考這篇博客（轉載他人鏈接）

https://blog.csdn.net/hsany330/article/details/70143150

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