Function at 0x403810
Capabilities:
Create directory
Get common file path
Get startup folder

Disassembly:
push 0xffffffffffffffff
mov eax, dword fs:[0]
push 0x42d808
push eax
mov eax, 0x1020
mov dword fs:[0], esp
call fcn.0040f810
push ebx
push ebp
push esi
mov ebp, ecx
push edi
push 0x43fe14
lea ecx, [esp + 0x30]
call fcn.004220d7
push 0x43fe14
lea ecx, [esp + 0x2c]
mov dword [esp + 0x103c], 0
call fcn.004220d7
push 0x43fe14
lea ecx, [esp + 0x20]
mov byte [esp + 0x103c], 1
call fcn.004220d7
push 0x43fe14
lea ecx, [esp + 0x24]
mov byte [esp + 0x103c], 2
call fcn.004220d7
push 0x43fe14
lea ecx, [esp + 0x28]
mov byte [esp + 0x103c], 3
call fcn.004220d7
mov ecx, 0x1ff
xor eax, eax
lea edi, [esp + 0x31]
mov byte [esp + 0x30], 0
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
push 0
lea eax, [esp + 0x34]
push 0x16
mov bl, 4
push eax
push 0
mov byte [esp + 0x1048], bl
call dword [sym.imp.SHELL32.dll_SHGetSpecialFolderPathA]
mov edi, 0x43b6d8
or ecx, 0xffffffff
xor eax, eax
lea edx, [esp + 0x30]
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
push eax
mov esi, edi
mov edi, edx
mov edx, ecx
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
mov ecx, edx
dec edi
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
lea eax, [esp + 0x34]
and ecx, 3
push eax
rep movsb byte es:[edi], byte [esi]
call dword [sym.imp.KERNEL32.DLL_CreateDirectoryA]
lea ecx, [ebp + 0x88]
push str.Internet_ExplorerIEXPLORE.EXE
lea edx, [esp + 0x1c]
push ecx
push edx
call fcn.004222fe
mov byte [esp + 0x1038], 5
push eax
lea ecx, [esp + 0x2c]
call fcn.004221a2
lea ecx, [esp + 0x18]
mov byte [esp + 0x1038], bl
call fcn.00422069
push 0x43b6a8
lea ecx, [esp + 0x14]
call fcn.004220d7
mov esi, eax
lea eax, [esp + 0x30]
lea ecx, [esp + 0x14]
push eax
mov byte [esp + 0x103c], 6
call fcn.004220d7
push esi
lea ecx, [esp + 0x1c]
push eax
push ecx
mov byte [esp + 0x1044], 7
call fcn.00422298
push eax
lea ecx, [esp + 0x20]
mov byte [esp + 0x103c], 8
call fcn.004221a2
lea ecx, [esp + 0x18]
mov byte [esp + 0x1038], 7
call fcn.00422069
lea ecx, [esp + 0x14]
mov byte [esp + 0x1038], 6
call fcn.00422069
lea ecx, [esp + 0x10]
mov byte [esp + 0x1038], bl
call fcn.00422069
push 0
lea ecx, [esp + 0x2c]
call fcn.00422499
push eax
push str.http:__www.vaccinecom.com
push 0
lea ecx, [esp + 0x28]
call fcn.00422499
push eax
mov ecx, ebp
call fcn.00403db0
push 0x43b67c
lea ecx, [esp + 0x1c]
call fcn.004220d7
mov esi, eax
lea edx, [esp + 0x30]
lea ecx, [esp + 0x14]
push edx
mov byte [esp + 0x103c], 9
call fcn.004220d7
push esi
push eax
lea eax, [esp + 0x18]
mov byte [esp + 0x1040], 0xa
push eax
call fcn.00422298
push eax
lea ecx, [esp + 0x20]
mov byte [esp + 0x103c], 0xb
call fcn.004221a2
lea ecx, [esp + 0x10]
mov byte [esp + 0x1038], 0xa
call fcn.00422069
lea ecx, [esp + 0x14]
mov byte [esp + 0x1038], 9
call fcn.00422069
lea ecx, [esp + 0x18]
mov byte [esp + 0x1038], bl
call fcn.00422069
push 0
lea ecx, [esp + 0x2c]
call fcn.00422499
push eax
push str.http:__vaccinecom.com_etc_yak_app.htm
push 0
lea ecx, [esp + 0x28]
call fcn.00422499
push eax
mov ecx, ebp
call fcn.00403db0
lea esi, [ebp + 0x7c]
push str._vaccinecomu.exe
lea ecx, [esp + 0x14]
push esi
push ecx
call fcn.004222fe
push eax
lea ecx, [esp + 0x24]
mov byte [esp + 0x103c], 0xc
call fcn.004221a2
lea ecx, [esp + 0x10]
mov byte [esp + 0x1038], bl
call fcn.00422069
push str._vaccinecomu.exe
lea edx, [esp + 0x14]
push esi
push edx
call fcn.004222fe
push eax
lea ecx, [esp + 0x28]
mov byte [esp + 0x103c], 0xd
call fcn.004221a2
lea ecx, [esp + 0x10]
mov byte [esp + 0x1038], bl
call fcn.00422069
push str._vaccinecom.lnk
lea ecx, [esp + 0x1c]
call fcn.004220d7
mov edi, eax
lea eax, [esp + 0x30]
lea ecx, [esp + 0x14]
push eax
mov byte [esp + 0x103c], 0xe
call fcn.004220d7
push edi
lea ecx, [esp + 0x14]
push eax
push ecx
mov byte [esp + 0x1044], 0xf
call fcn.00422298
push eax
lea ecx, [esp + 0x20]
mov byte [esp + 0x103c], 0x10
call fcn.004221a2
lea ecx, [esp + 0x10]
mov byte [esp + 0x1038], 0xf
call fcn.00422069
lea ecx, [esp + 0x14]
mov byte [esp + 0x1038], 0xe
call fcn.00422069
lea ecx, [esp + 0x18]
mov byte [esp + 0x1038], bl
call fcn.00422069
mov edi, dword [esi]
push 0
lea ecx, [esp + 0x28]
call fcn.00422499
push eax
push str.vaccinecom
push 0x43fe14
push edi
push 0
lea ecx, [esp + 0x30]
call fcn.00422499
push eax
push 0
lea ecx, [esp + 0x38]
call fcn.00422499
push eax
mov ecx, ebp
call fcn.00403e90
mov ecx, 0x1ff
xor eax, eax
lea edi, [esp + 0x831]
mov byte [esp + 0x830], 0
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
lea edx, [esp + 0x830]
push 0x800
push edx
stosb byte es:[edi], al
call dword [sym.imp.KERNEL32.DLL_GetSystemDirectoryA]
push str.uninst_vaccinecom.exe
lea ecx, [esp + 0x18]
call fcn.004220d7
push eax
lea eax, [esp + 0x14]
push esi
push eax
mov byte [esp + 0x1044], 0x11
call fcn.00422298
push eax
lea ecx, [esp + 0x24]
mov byte [esp + 0x103c], 0x12
call fcn.004221a2
lea ecx, [esp + 0x10]
mov byte [esp + 0x1038], 0x11
call fcn.00422069
lea ecx, [esp + 0x14]
mov byte [esp + 0x1038], bl
call fcn.00422069
push str.uninst_vaccinecom.exe
lea ecx, [esp + 0x18]
call fcn.004220d7
push eax
lea ecx, [esp + 0x14]
push esi
push ecx
mov byte [esp + 0x1044], 0x13
call fcn.00422298
push eax
lea ecx, [esp + 0x28]
mov byte [esp + 0x103c], 0x14
call fcn.004221a2
lea ecx, [esp + 0x10]
mov byte [esp + 0x1038], 0x13
call fcn.00422069
lea ecx, [esp + 0x14]
mov byte [esp + 0x1038], bl
call fcn.00422069
push 0x43b62c
lea ecx, [esp + 0x1c]
call fcn.004220d7
mov edi, eax
lea edx, [esp + 0x30]
lea ecx, [esp + 0x14]
push edx
mov byte [esp + 0x103c], 0x15
call fcn.004220d7
push edi
push eax
lea eax, [esp + 0x18]
mov byte [esp + 0x1040], 0x16
push eax
call fcn.00422298
push eax
lea ecx, [esp + 0x20]
mov byte [esp + 0x103c], 0x17
call fcn.004221a2
mov byte [esp + 0x1038], 0x16
lea ecx, [esp + 0x10]
call fcn.00422069
lea ecx, [esp + 0x14]
mov byte [esp + 0x1038], 0x15
call fcn.00422069
lea ecx, [esp + 0x18]
mov byte [esp + 0x1038], bl
call fcn.00422069
mov esi, dword [esi]
push 0
lea ecx, [esp + 0x28]
call fcn.00422499
push eax
push 0x43b61c
push 0x43fe14
push esi
push 0
lea ecx, [esp + 0x30]
call fcn.00422499
push eax
push 0
lea ecx, [esp + 0x38]
call fcn.00422499
push eax
mov ecx, ebp
call fcn.00403e90
lea ecx, [esp + 0x24]
mov byte [esp + 0x1038], 3
call fcn.00422069
lea ecx, [esp + 0x20]
mov byte [esp + 0x1038], 2
call fcn.00422069
lea ecx, [esp + 0x1c]
mov byte [esp + 0x1038], 1
call fcn.00422069
lea ecx, [esp + 0x28]
mov byte [esp + 0x1038], 0
call fcn.00422069
lea ecx, [esp + 0x2c]
mov dword [esp + 0x1038], 0xffffffff
call fcn.00422069
mov ecx, dword [esp + 0x1030]
pop edi
pop esi
pop ebp
mov eax, 1
pop ebx
mov dword fs:[0], ecx
add esp, 0x102c
ret