Pentesters have a hard time bypassing anti-viruses nowadays Since Antiviruses are evolving as we speak. We at www.gbhackers.com decided to put some time to teach how to Bypassing an Antivirus with most common free AV’s we come across in our day today life.
Most novice users prefer AVAST or AVG since they are light weighted and don’t consume much of the computer resources so here we are using AVAST Free Anti Virus which is Running in the Windows 10 Computers.
Bypassing an Antivirus Prerequisites:
Veil Framework is an old one to bypass antivirus, they generate payloads which are nearly undetectable by antiviruses. Veil can be installed by opening a terminal and run
- apt-get -y install git clone https://github.com/Veil-Framework/Veil-Evasion.git
- cd Veil-Evasion/
- cd setup
- setup.sh -c
More Information can be found at their GitHub click here
STEP 1 :
In this Kali Linux Tutorial , After installing open a terminal and navigate to veil framework directory.
Type #python veil-evasion.py
STEP 2 :
There are few commands available, we will use list command here to check out the payloads available by default in a veil.
STEP 3 :
Now lets select the payload “python/shellcode_inject/arc_encrypt” numbered at 37 . The shellcode is encrypted by arc4 encryption and it’s decrypted using a key file in memory and then executed.
This information can be viewed in by issuing the info command. use the SET command to use phyrion encrypter to yes “SET USE_PHYRION Y”
Now lets type generate the payload and use msfvenom by default and type the required handle. I have used the default reverse_tcphandler and fill out the LHOST and LPORT of kali Linux.
Once the payload is successfully generated. The payload generated location and handler file for msf will be shown. Now lets type
#msfconsole -r /usr/share/veil-output/handlers/payload_handler.rc
Now move your payload to windows and execute and We tested this on the latest free version of Avast.
The payload was executed with no pop-ups or anything from avast and kindly watch the video we have uploaded.
Source : GBHackers