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Hack Forums Hacks, Exploits, and Various Discussions Blackhat • Red Team • Offensive Security Cryptography, Encryption, and Decryption › [FUD] Simple Method To Bypass AV [PowerShell]

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[FUD] Simple Method To Bypass AV [PowerShell]
NYANxCAT
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Sep 29, 2019 02:10 AM (This post was last modified: Oct 2, 2019 09:14 PM by NYANxCAT.)
[Image: nnX3zrW.png]



- We will create a Powershell loader using VBS. I tried to make it as simple as I can. Have fun!

[1] Convert your .NET payload to base64
[2] Reverse your base64 string - URL
[3] FUD - Scan Result

[!] Copy + Paste = NO FUD


Wikeos123
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Sep 29, 2019 02:14 AM
I love you NYAN <3 you are the best
tiny cracker
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Sep 29, 2019 02:15 AM
great sharing . NAYA CAT is legend and has good contribution for learning on HF and GitHub. love you dude..
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Sep 29, 2019 03:07 AM
Loading malware which is detected runtime will be bypassed by a Loader? Wow you have defeated every AV in a single blow!
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It hurt itself in its confusion!
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Sep 29, 2019 10:41 AM
Awesome man :) commenting here to save this post. Love your contributions :)
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Sep 30, 2019 05:32 AM
Maybe i'm doing something wrong, but when i saved this as a VBS file i only get errors... :/

The base64 is reveresed and everything, still nothing... I get a popup called "Windows Script Host"
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Oct 2, 2019 07:40 PM
(Sep 29, 2019 02:10 AM)NYANxCAT Wrote:  
[Image: nnX3zrW.png]



- We will create a Powershell loader using VBS. I tried to make it as simple as I can. Have fun!

[1] Convert your .NET payload to base64
[2] Reverse your base64 string - Online URL
[3] FUD - Scan Result

[!] Copy + Paste = NO FUD



Please any help? :(
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Oct 3, 2019 09:11 AM
you are the great .Love you brother <3
and77
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Oct 4, 2019 04:04 AM (This post was last modified: Oct 4, 2019 04:10 AM by and77.)
Thank you, good luck in the future
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Oct 4, 2019 08:40 AM
How to make cmd completely hidden way , it shows cmd for about 3 seconds
bexpr9
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Oct 8, 2019 02:07 AM
thank you.
I'll enjoy with this.
You are a good person who gives convenience to many peoples.
Feel free to ask me for help. I will always giveaway.
Dorothy Gonzales
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Oct 8, 2019 04:02 PM
not very effective actually because it wont get past AMSI. also using base64 not very stealth at all...stands out like a pineapple because why would anything legit be doing something like this?

if you want to truly be FUD then make it look legit not stand out like something that is obviously shady
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Oct 11, 2019 02:52 PM
Lol when it comes to powershell and base64 all you need is to make the file scantime fud,I will keep saying this till someone gets it
Am Rich in Real Life.
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Jan 17, 2020 01:09 AM (This post was last modified: Jan 17, 2020 01:27 AM by Tyr.)
(Oct 11, 2019 02:52 PM)One Wrote:  Lol when it comes to powershell and base64 all you need is to make the file scantime fud,I will keep saying this till someone gets it

THANK YOU. I was reading the replies and laughing, lol.

@OP. Good thread and you put some nice work into it. Highly appreciated.

(Oct 4, 2019 08:40 AM)twito Wrote:  How to make cmd completely hidden way , it shows cmd for about 3 seconds

What OS are you testing this on, or are you Sandboxie-ing it? This is normal with certain stubs but can be fixed. 3 seconds is a little long though...
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Jan 17, 2020 03:23 AM
its just going to get detected upon runtime lol.
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