Function at 0x420c1c
Capabilities:
Create directory
Get common file path
Set environment variable

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x3c
push ebx
push esi
push edi
mov edi, dword [ebp + 8]
cmp word [edi], 0x5e
mov dword [ebp - 0x14], ecx
jne 0x420c36
inc edi
inc edi
mov dword [ebp + 8], edi
push edi
call dword [sym.imp.KERNEL32.dll_lstrlenW]
add eax, 0x400
push eax
lea ecx, [ebp - 0x34]
call fcn.00443f79
mov esi, dword [ebp - 0x34]
xor eax, eax
cmp dword [ebp + 0xc], 0x24
push 0x23
mov dword [ebp - 0x20], esi
mov dword [ebp - 0xc], eax
mov dword [ebp - 0x10], eax
mov dword [ebp - 0x24], eax
pop ebx
jne 0x420c6e
mov dword [ebp - 0xc], 0x24
jmp 0x420c76
cmp dword [ebp + 0xc], ebx
jne 0x420c76
mov dword [ebp - 0x10], ebx
mov ax, word [edi]
push 0x24
pop ecx
cmp ax, cx
jne 0x420c8d
cmp word [ebp - 0xc], 0
jne 0x420c8d
mov dword [ebp - 0xc], ecx
jmp 0x420c9c
cmp ax, bx
jne 0x420ca1
cmp word [ebp - 0x10], 0
jne 0x420ca1
mov dword [ebp - 0x10], ebx
inc edi
inc edi
mov dword [ebp + 8], edi
cmp word [edi], 0x20
jne 0x420cac
inc edi
inc edi
mov dword [ebp + 8], edi
xor eax, eax
mov ax, word [edi]
cmp ax, 0x2a
je 0x420cbd
cmp ax, 0x2d
jne 0x420cc5
inc edi
inc edi
mov dword [ebp - 0x24], eax
mov dword [ebp + 8], edi
and dword [ebp - 0x28], 0
cmp byte [ebp + 0xc], 0
lea ecx, [ebp - 0x1c]
setne byte [ebp - 1]
call fcn.00443f5b
cmp word [edi], 0
jne 0x420db8
cmp dword [ebp + 0x10], 0
je 0x420db1
cmp dword [ebp + 0x10], ebx
je 0x420db1
mov word [esi], 0x2a
xor esi, esi
mov eax, dword [esi + 0x4bdfe4]
mov ebx, dword [ebp - 0x20]
inc eax
inc eax
push eax
push 0x4c0e78
add ebx, 2
push ebx
call dword [sym.imp.USER32.dll_wsprintfW]
add esp, 0xc
push 1
lea edi, [esi + 0x4bdfe0]
push dword [edi]
lea ebx, [ebx + eax*2]
push ebx
push 0
call dword [sym.imp.SHELL32.dll_SHGetSpecialFolderPathW]
test eax, eax
je 0x420da3
cmp dword [edi], 0x1a
jne 0x420d56
push str.MicrosoftInternet_ExplorerQuick_Launch
push ebx
call dword [sym.imp.KERNEL32.dll_lstrcatW]
push ebx
call fcn.004146c0
pop ecx
push 0
push ebx
call dword [sym.imp.KERNEL32.dll_CreateDirectoryW]
push str.HKCUEnvironment_
lea ecx, [ebp - 0x1c]
call fcn.0044cddc
mov eax, dword [ebp - 0x20]
add eax, 2
push eax
lea ecx, [ebp - 0x1c]
call fcn.00443fc7
push 1
push dword [ebp - 0x1c]
mov edi, 0x4d80e8
mov ecx, edi
call fcn.0045e92a
push ebx
push dword [esi + 0x4bdfe4]
mov ecx, edi
call fcn.00443666
mov ecx, dword [ebp - 0x14]
push 0
push 0
push dword [ebp + 0xc]
push dword [ebp - 0x20]
call fcn.00420c1c
add esi, 8
cmp esi, 0x40
jb 0x420cfd
jmp 0x420db5
mov byte [ebp - 1], 0x10
mov edi, dword [ebp + 8]
mov ecx, dword [ebp + 0x14]
xor bl, bl
test ecx, ecx
mov byte [ebp + 0xf], bl
mov byte [ebp + 0xb], bl
mov byte [ebp + 0x13], bl
je 0x420ee2
cmp word [ecx], 0
je 0x420ee2
push 0x7e
pop esi
xor edx, edx
mov dx, word [ecx]
mov eax, edx
call fcn.0043daaf
test al, al
jne 0x420ece
cmp dx, 0x2e
je 0x420ec2
cmp dx, 0x24
je 0x420ec2
cmp dx, 0x25
je 0x420ec2
cmp dx, 0x2a
jne 0x420e1b
or bl, 4
jmp 0x420ec2
cmp dx, si
jne 0x420e60
lea eax, [ecx + 2]
cmp word [eax], si
jne 0x420e30
or bl, 2
jmp 0x420ec0
cmp dx, si
jne 0x420e60
lea eax, [ecx + 2]
cmp word [eax], 0x2e
jne 0x420e43
or bl, 8
jmp 0x420ec0
cmp dx, si
jne 0x420e60
lea eax, [ecx + 2]
cmp word [eax], 0x2a
jne 0x420e56
or bl, 9
jmp 0x420ec0
cmp dx, si
jne 0x420e60
or bl, 1
jmp 0x420ec2
cmp dx, 0x2d
jne 0x420ec2
cmp word [ecx + 2], 0x65
jne 0x420e83
cmp word [ecx + 4], 0x6e
jne 0x420e83
lea eax, [ecx + 6]
cmp word [eax], 0x76
jne 0x420e83
or byte [ebp + 0xf], 0x40
jmp 0x420ec0
cmp dx, 0x2d
jne 0x420ec2
cmp word [ecx + 2], 0x72
jne 0x420ea6
cmp word [ecx + 4], 0x61
jne 0x420ea6
lea eax, [ecx + 6]
cmp word [eax], 0x77
jne 0x420ea6
or byte [ebp + 0xb], 0x40
jmp 0x420ec0
cmp dx, 0x2d
jne 0x420ec2
cmp word [ecx + 2], 0x65
jne 0x420ec2
lea eax, [ecx + 4]
cmp word [eax], 0x78
jne 0x420ec2
mov byte [ebp + 0x13], 1
mov ecx, eax
inc ecx
inc ecx
cmp word [ecx], 0
jne 0x420ddb
cmp byte [ebp + 0xb], 0
je 0x420ee2
lea eax, [ebp + 0x14]
push eax
xor bl, bl
call fcn.00408ddd
mov edi, dword [eax]
pop ecx
push 0x3d
push edi
call dword [sym.imp.SHLWAPI.dll_StrChrW]
xor edx, edx
cmp eax, edx
mov dword [ebp - 8], eax
je 0x420efb
mov word [eax], dx
add dword [ebp - 8], 2
mov ecx, dword [ebp - 0x14]
cmp byte [ecx + 0x92], 0
mov dword [ebp - 0x18], edx
jne 0x420f1f
test byte [ecx + 9], 0xf
jne 0x420f1f
push 1
push edx
lea eax, [ebp - 0x18]
push eax
push edi
call fcn.00454ae5
jmp 0x420f2c
push 1
push edx
lea eax, [ebp - 0x18]
push eax
push edi
call fcn.004537c3
mov esi, dword [ebp - 0x18]
xor edi, edi
test bl, bl
mov dword [ebp - 0x30], edi
mov dword [ebp - 0x2c], edi
mov dword [ebp - 0x3c], edi
mov dword [ebp - 0x38], edi
je 0x420f65
cmp dword [ebp - 8], edi
je 0x420f95
xor eax, eax
mov al, byte [ebp + 0xf]
or al, bl
lea ecx, [ebp - 0x30]
push eax
push dword [ebp - 8]
call fcn.0044cddc
mov ecx, dword [ebp - 0x14]
push eax
call fcn.0045ab9a
mov dword [ebp - 8], eax
cmp dword [ebp - 8], edi
je 0x420f95
lea eax, [ebp - 0x3c]
push eax
push dword [ebp + 0x14]
lea eax, [ebp - 0x2c]
push eax
lea eax, [ebp - 8]
push eax
call fcn.0045a249
add esp, 0x10
cmp dword [ebp - 8], edi
je 0x420f95
push dword [ebp - 8]
call dword [sym.imp.KERNEL32.dll_lstrlenW]
mov edi, eax
shl edi, 1
jmp 0x420f97
xor edi, edi
xor ebx, ebx
cmp word [esi], bx
je 0x421050
cmp word [ebp - 0xc], bx
je 0x420fdb
cmp dword [ebp - 8], ebx
jne 0x420fc2
push esi
push str.SYSTEMCurrentControlSetControlSession_ManagerEnvironment
push 0x80000002
call fcn.0043edb7
add esp, 0xc
jmp 0x420fdb
push edi
push dword [ebp - 8]
push 1
push esi
push str.SYSTEMCurrentControlSetControlSession_ManagerEnvironment
push 0x80000002
call fcn.0043ed6b
add esp, 0x18
cmp word [esi], bx
je 0x421050
cmp word [ebp - 0x10], bx
je 0x421019
cmp dword [ebp - 8], ebx
jne 0x421000
push esi
push str.Environment
push 0x80000001
call fcn.0043edb7
add esp, 0xc
jmp 0x421019
push edi
push dword [ebp - 8]
push 1
push esi
push str.Environment
push 0x80000001
call fcn.0043ed6b
add esp, 0x18
cmp word [esi], bx
je 0x421050
cmp byte [ebp + 0x13], 0
je 0x421034
push dword [ebp - 8]
push dword [ebp - 0x14]
call fcn.00447899
pop ecx
pop ecx
mov dword [ebp - 8], eax
push dword [ebp - 8]
push esi
call dword [sym.imp.KERNEL32.dll_SetEnvironmentVariableW]
test eax, eax
je 0x421047
mov dword [ebp - 0x28], ebx
jmp 0x421050
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov dword [ebp - 0x28], eax
cmp byte [ebp - 1], 0
je 0x4210a2
cmp word [ebp - 0x24], 0x2a
je 0x4210a2
cmp word [ebp - 0x24], 0x2d
je 0x421087
mov al, byte [0x4d7e75]
cmp al, 0x2d
je 0x421087
cmp byte [ebp - 1], 0x10
je 0x421080
test al, al
je 0x421080
mov byte [0x4d7e76], 1
jmp 0x4210a2
call fcn.00411647
jmp 0x4210a2
push ebx
push 0x4d7c20
mov eax, 0x10000
push eax
push eax
push ebx
push 0x420b06
call fcn.0043dc3f
add esp, 0x18
lea ecx, [ebp - 0x2c]
call fcn.0043db4f
lea ecx, [ebp - 0x30]
call fcn.0043db4f
lea ecx, [ebp - 0x18]
call fcn.0043db4f
lea ecx, [ebp - 0x1c]
call fcn.0043db4f
lea ecx, [ebp - 0x34]
call fcn.0043db4f
mov eax, dword [ebp - 0x28]
pop edi
pop esi
pop ebx
leave
ret 0x10