Function at 0x421bc0
Capabilities:
Reference http user-agent string

Disassembly:
mov ecx, dword fs:[0x14]
mov ecx, dword [ecx]
cmp esp, dword [ecx + 8]
jbe 0x421ecc
sub esp, 0x38
call fcn.004339f0
mov eax, dword [esp + 0x3c]
mov ecx, dword [eax + 0x40]
mov dword [esp + 0x1c], ecx
mov edx, dword [eax + 0x18]
mov dword [esp + 0x18], edx
call fcn.004339f0
lea eax, [0x8bed69]
mov dword [esp], eax
mov dword [esp + 4], 0x24
call fcn.00434290
mov eax, dword [esp + 0x3c]
mov dword [esp], eax
call fcn.00434250
lea eax, [0x8af63a]
mov dword [esp], eax
mov dword [esp + 4], 0xb
call fcn.00434290
mov eax, dword [esp + 0x1c]
mov dword [esp], eax
mov dword [esp + 4], 0
call fcn.00433f90
lea eax, [0x8af58a]
mov dword [esp], eax
mov dword [esp + 4], 0xb
call fcn.00434290
mov eax, dword [esp + 0x18]
mov dword [esp], eax
mov dword [esp + 4], 0
call fcn.00433f90
lea eax, [0x8c3766]
mov dword [esp], eax
mov dword [esp + 4], 0x2e
call fcn.00434290
call fcn.00433a60
mov eax, dword [esp + 0x3c]
mov ecx, dword [eax + 0x2c]
mov dword [esp + 0x20], ecx
mov byte [esp + 0x24], 1
mov dword [esp + 0x28], 0
mov ecx, dword [eax + 0x28]
mov dword [esp + 0x2c], ecx
mov byte [esp + 0x30], 1
mov dword [esp + 0x34], 0
xor ecx, ecx
jmp 0x421cc5
inc dword [esp + 0x34]
mov edx, dword [esp + 0x10]
lea ecx, [edx + 1]
mov eax, dword [esp + 0x3c]
cmp dword [eax + 0x1c], ecx
jbe 0x421eb5
mov dword [esp + 0x10], ecx
mov edx, dword [eax + 0x40]
imul edx, ecx
add edx, dword [eax + 0xc]
mov dword [esp + 0x14], edx
call fcn.004339f0
mov eax, dword [esp + 0x14]
mov dword [esp], eax
mov dword [esp + 4], 0
call fcn.00434150
call fcn.00433a60
mov eax, dword [esp + 0x10]
mov ecx, dword [esp + 0x3c]
cmp dword [ecx + 0x18], eax
jbe 0x421e9d
mov edx, 1
mov byte [esp + 0xf], dl
test dl, dl
je 0x421e78
call fcn.004339f0
lea eax, [0x8ad750]
mov dword [esp], eax
mov dword [esp + 4], 6
call fcn.00434290
call fcn.00433a60
mov eax, dword [esp + 0x20]
movzx ecx, byte [esp + 0x24]
movzx eax, byte [eax]
test al, cl
je 0x421e53
call fcn.004339f0
lea eax, [0x8ae734]
mov dword [esp], eax
mov dword [esp + 4], 9
call fcn.00434290
call fcn.00433a60
mov eax, dword [esp + 0x20]
movzx ecx, byte [esp + 0x24]
movzx eax, byte [eax]
test al, cl
je 0x421e4c
movzx eax, byte [esp + 0xf]
xor eax, 1
mov byte [esp + 0xe], al
test al, al
jne 0x421e27
call fcn.004339f0
call fcn.00433c10
call fcn.00433a60
movzx eax, byte [esp + 0xe]
test al, al
jne 0x421df7
nop
movzx eax, byte [esp + 0x24]
cmp al, 0x80
jne 0x421def
inc dword [esp + 0x20]
mov byte [esp + 0x24], 1
inc dword [esp + 0x28]
nop
movzx eax, byte [esp + 0x30]
cmp al, 0x80
jne 0x421de4
inc dword [esp + 0x2c]
mov byte [esp + 0x30], 1
jmp 0x421cb6
shl eax, 1
mov byte [esp + 0x30], al
jmp 0x421cb6
shl eax, 1
mov byte [esp + 0x24], al
jmp 0x421dc7
mov eax, dword [esp + 0x3c]
mov ecx, dword [eax + 0x40]
cmp ecx, 0x400
jbe 0x421e0b
mov ecx, 0x400
mov eax, dword [esp + 0x14]
mov dword [esp], eax
add eax, ecx
mov dword [esp + 4], eax
mov dword [esp + 8], 0
call fcn.004343d0
jmp 0x421db3
call fcn.004339f0
lea eax, [0x8adba2]
mov dword [esp], eax
mov dword [esp + 4], 7
call fcn.00434290
call fcn.00433a60
jmp 0x421d9b
xor eax, eax
jmp 0x421d8f
call fcn.004339f0
lea eax, [0x8ae78e]
mov dword [esp], eax
mov dword [esp + 4], 9
call fcn.00434290
call fcn.00433a60
jmp 0x421d73
call fcn.004339f0
lea eax, [0x8ad76e]
mov dword [esp], eax
mov dword [esp + 4], 6
call fcn.00434290
call fcn.00433a60
jmp 0x421d3f
mov ebx, dword [esp + 0x2c]
movzx ebp, byte [esp + 0x30]
movzx ebx, byte [ebx]
xchg ebp, eax
test bl, al
xchg ebp, eax
setne dl
jmp 0x421d13
lea eax, [0x8b98b7]
mov dword [esp], eax
mov dword [esp + 4], 0x1c
call fcn.00432140
nop
call fcn.0045bbc0
jmp fcn.00421bc0