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dmchell avatar dmchell commented on June 28, 2024 1

It looks like Kaspersky has signatured the downloader HTML - it shouldn't be too much effort to obfuscate this also. You can try w/o HTML smuggling,

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gearcapitan avatar gearcapitan commented on June 28, 2024

is not the html, are the files, hta, vbs, js, and others, the html that has nothing to do, there is clear in the image that is the vbs!

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dmchell avatar dmchell commented on June 28, 2024

Is it triggering through AMSI? It's possible it's flagging the decoded/decrypted dotnet2js blob. It should be possible to obfuscate this.

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gearcapitan avatar gearcapitan commented on June 28, 2024

is simply shellcode, in the end the files vbs, hta, js, execute the original shellcoede, it is useless to create a file that executes the original shellcode because it will be detected, the analysis with noditribute leaves clean but they are pure false negatives.

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dmchell avatar dmchell commented on June 28, 2024

Then use AV safe shellcode? 👍

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gearcapitan avatar gearcapitan commented on June 28, 2024

and why not obfuse the original shellcodes so that they are not detected at the time of execution?

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dmchell avatar dmchell commented on June 28, 2024

I don't supply any shellcode with SS, you provide the SS. If you want to obfuscate it in advance you can do.

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