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May 14, 2022 04:50
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Cyberchef Recipe for Cobalt Strike Reflective Loader(beacon) v4
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Regular_expression('User defined','FromBase64String\\("([^"]+)',true,true,false,false,false,false,'List capture groups') | |
From_Base64('A-Za-z0-9+/=',true) | |
Gunzip() | |
Register('([\\s\\S]*)',true,false,false) | |
Regular_expression('User defined','FromBase64String\\(\'([^\']+)',true,true,false,false,false,false,'List capture groups') | |
Register('([\\s\\S]*)',true,false,false) | |
Find_/_Replace({'option':'Regex','string':'.+'},'$R0',true,false,true,true) | |
Regular_expression('User defined','-bxor (.+)',true,true,false,false,false,false,'List capture groups') | |
Register('([\\s\\S]*)',true,false,false) | |
Find_/_Replace({'option':'Regex','string':'.+'},'$R1',true,false,true,true) | |
From_Base64('A-Za-z0-9+/=',true) | |
XOR({'option':'Decimal','string':'$R2'},'Standard',false) | |
To_Hex('Space',0) | |
Remove_whitespace(true,true,true,true,true,false) | |
Register('([\\s\\S]*)',true,false,true) | |
Regular_expression('User defined','33C080B0([a-f0-9]{2}[a-f0-9]{2}[a-f0-9]{2}[a-f0-9]{2})([a-f0-9]{2})403D([a-f0-9]{2}[a-f0-9]{2}[a-f0-9]{2}[a-f0-9]{2})',true,true,true,false,false,true,'List matches with capture groups') | |
Remove_whitespace(true,true,true,true,true,false) | |
Register('Group1:([\\s\\S]*)Group2:([\\s\\S]*)Group3:([\\s\\S]*)',true,true,false) | |
Find_/_Replace({'option':'Regex','string':'.+'},'$R6',true,false,true,true) | |
Swap_endianness('Hex',4,true) | |
From_Base(16) | |
Register('([\\s\\S]*)',true,false,false) | |
Find_/_Replace({'option':'Regex','string':'.+'},'$R7,2',true,false,true,true) | |
Multiply('Comma') | |
Register('([\\s\\S]*)',true,false,false) | |
Find_/_Replace({'option':'Regex','string':'.+'},'$R3',true,false,true,true) | |
Regular_expression('User defined','FFFFFFFFFFFFFFFFFF($R5[a-f0-9]{$R8})',true,true,false,false,false,false,'List capture groups') | |
From_Hex('Auto') | |
XOR({'option':'Hex','string':'$R5'},'Standard',false) | |
To_Hexdump(16,false,false,false) |
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