I have written about RATs in a previous article “PRORAT – Remote PC access software.” I mentioned that antiviruses sometimes detect RATs as hacking software (viruses), necessitating a hacker to use Crypters to avoid a RAT being detected by antivirus software. So, read on to know more on Crypters – software for bypassing antivirus detections. I have provided a link for software download.
What is Crypter???
As mentioned above, Crypter is a hacking program or application
used to hide our viruses or RATs from antivirus software so that they are not detected and deleted. Thus, a Crypter is a program that allows users to crypt the source code of their program. Generally, antiviruses work by splitting source codes of applications and then searching for a certain string within the source code.
If AV detects any malicious strings, it either stops the scan or deletes the file as a virus.
What does Crypter do???
Crypter simply assigns hidden values to each code within the source code. Thus, the source code becomes hidden. Hence, our sent crypted trojan and virus bypass antivirus detection and our hacking is fulfilled without any AV hindrance. Not only does this Crypter hide source code, but it will also unpack the encryption once the program is executed.
What is FUD???
FUD is an acronym for “Fully UnDetectable.” With increased use of Crypters to bypass antiviruses, AV evolved to become more advanced and now includes Crypter definitions to detect even Crypter strings within code. So, use of Crypters to hide RATs has become more complicated as nowadays, no publicly available Crypter is FUD.
So, if you crypt RATs with publicly available Crypters, they are bound to be detected by antiviruses. This is because most FUD Crypters remain “FUD” for a maximum of two days after their public release. To obtain FUD Crypters, you have to either search for one in hacking forums or make one yourself (which is somewhat tedious – I am working on this).
How do I get a Crypter???
There are many Crypters out on the web, but most of them are not FUD. So, as stated above, you either have to search for a FUD Crypter or make one.
This concludes the article about Crypters. In my next article, I will discuss how to use Crypters to hide our trojans and bypass antivirus detections. If you have any problems regarding Crypters, please mention it in the comments.
Enjoy your Crypter download.