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EXECUTE MALICIOUS CODE in WINDOWS Using AMSI BYPASS Techniques!

7.5K views
Jun 18, 2021
47:46

Microsoft has gone to great lengths to stop common malware from executing and they've done this by developing the Antimalware Scan Interface or AMSI. Yet, threat actors and Red-Teamers alike are still able to bypass this mechanism to execute their malicious scripts. How is this possible? In this episode, I attempt to learn and experiment with 6 AMSI bypass techniques in order to get malicious script execution. Inadvertently, we also get to experiment with PowerShell script execution restriction techniques. Fun times were generally had by all 😁 https://pentestlaboratories.com/2021/05/17/amsi-bypass-methods/ https://www.netspi.com/blog/technical/network-penetration-testing/15-ways-to-bypass-the-powershell-execution-policy/ Follow me on Instagram! https://www.instagram.com/daniellowrie_/ #amsibypass #avevasion #antivirusevastion #antimalwarescaninterface #windowsdefenderbypass #malwaredetectionbypass #redteaming #malware #maliciouspowershell #invokemimikatz --------------- Chapters --------------- 0:00 Intro 0:27 What is AMSI? 4:10 How AMSI Works 6:40 Demo of AMSI Blocking Malicious Script 7:47 PowerShell Downgrade Bypass 17:18 Base64 Encoding Bypass 20:52 Hooking Bypass 22:12 Memory Patching Bypass 27:42 PowerShell Script Execution Restriction Bypass 38:24 Forcing an Error Bypass 43:09 Registry Key Modification Bypass 44:11 DLL Hijacking Bypass 46:20 Outro

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EXECUTE MALICIOUS CODE in WINDOWS Using AMSI BYPASS Techniques! | NatokHD